M-TDI Chevette

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
After about 15 years, I’ve finally started making headway on this stupid thing! I snagged an ALH with a mechanical pump, bellhousing adapter, and a universal mount kit from a member here a while back. I’ve gotten the rest of the driveline parts I need, as well as the maintenance items for the engine; timing belt, water pump etc. I’ve got a WC T5 from an 88 Z28 that will get mated to the engine with a V8 Monza bellhousing so that I can use the existing cable clutch system. The old driveline is nearly out of the car, I just need to cut a seized engine shock off and unbolt the steering column to get clearance for the fat oil pan, then I can start cleaning everything up. Initially I was going to lay the engine over 15° and try fitting a B5 oil pan and pick up, but my bellhousing scrapped that idea. The Monza used a smaller flywheel and clutch than the normal 11” in most sbc applications, I think this one is a 10.5. But I had to switch to the other starter mounting location to be able to fit the bell on the adapter, and as far as I can see that is going to lock me in to a vertical mounting orientation due to the starter mount interfering with the engine plate. I’ll try and get the pictures I took uploaded here soon. So I’ll need to come up with a different oil pan solution too.

Next on the list of things to sort out is the cooling system, accessory bracket, and turbo. I’m trying to decide if it would be more beneficial to keep the Chevy overflow system that’s currently on the car, or should I try adapting the surge tank system that the ALH would have had already? I have a good layout for adapting the surge system in, but my concern is the difference in pressure ratings. 15psi vs 21psi. I’d prefer not to explode my heater core or radiator lol. For the accessory bracket, I’m curious if there was ever a version to fit the ALH that only held the injection pump and an alternator. This car is simple with no AC or power steering, and I’d like to recoup some space with a smaller bracket and belt drive. Now for the turbo. I had planned on using a T25 that I (thought) I had in the garage somewhere, but I must have gotten rid of it at some point because I can’t find it anywhere. What would be a good wastegate operated turbo for this thing? Ideally I’d like it to be big enough to handle some larger nozzles down the line. I’d prefer wastegate as im planning on setting up a simple manual boost control system on this thing and I’ll be running the stock injectors that came with the engine for the time being. The next obstacle to noodle out is glow control. This car has an existing glow control system made by Dieselkiki that supposedly works well when it works. It didn’t work for me years ago when I tried driving this thing as is lol. But I’ve snagged a service manual and found a few of my problems, although I don’t know if the control unit will function after fixing the broken sensors and fuse links anyway. What year did VW move to E-TDI? I want to dig up some info on the older VW glow systems and determine if adapting that would be easier to do. Lastly is the universal engine mount kit. Does anyone have any pictures of this setup on an engine? It appears that it bolts up to the same spot as the oil filter housing? All the individual parts for the kit are in a box with the pump, and I hadn’t found much info on how they were supposed to go together yet.
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
Apparently I'll have to re-host pictures at another spot. Between crappy mobile browser UIs and probably Facebook being greedy, I can't successfully link my pictures here yet.
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I've had no issues running my TDI on the factory radiator/over flow tank/heater core on my 80s Toyota. Keep in mind if your heater core has an flow cut off valve you need to install a bypass TEE in there so there's still coolant circulation when the heat is off. Even below 10 degrees I had no issues with cab heat in my SUV with this tee installed. I did install a new heater core before I did the install but I've not blown anything apart in nearly a year of daily driving. Installing the expansion tank was going to be too much of an issue, I wanted to keep it simple.


For my oil pan I run a hybrid pan, aluminum with steel base. For my BHW this also required me to install a new oil pickup. This pan is about the lowest profile pan I've found and at less than 100 bucks isn't a bad buy.
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
I've had no issues running my TDI on the factory radiator/over flow tank/heater core on my 80s Toyota. Keep in mind if your heater core has an flow cut off valve you need to install a bypass TEE in there so there's still coolant circulation when the heat is off. Even below 10 degrees I had no issues with cab heat in my SUV with this tee installed. I did install a new heater core before I did the install but I've not blown anything apart in nearly a year of daily driving. Installing the expansion tank was going to be too much of an issue, I wanted to keep it simple.


For my oil pan I run a hybrid pan, aluminum with steel base. For my BHW this also required me to install a new oil pickup. This pan is about the lowest profile pan I've found and at less than 100 bucks isn't a bad buy.
Good to know on the oil pan. Do you have a thread on here that shows it so I can do some more digging this weekend? I'm not worried about running the ALH on the lower pressure system if that's the way it ends up going. I was more concerned about trying to mix and match the systems and having the high pressure cap of the surge tank pop one of my exchangers. Not like diesels are running hot enough to need the extra pressure for boil over control anyway lol. I'll have to re-draw some connections for sticking with the overflow system though, but thats not hard at all.
 

J_dude

Veteran Member
Joined
Jan 9, 2020
Location
SK Canada
TDI
2003 1.9l “Jedi”
Apparently I'll have to re-host pictures at another spot. Between crappy mobile browser UIs and probably Facebook being greedy, I can't successfully link my pictures here yet.
You tried uploading pics to the “Media” section here? That is usually the best way.
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
I've seen that guy before! I don't know why I drew a blank on it when you mentioned it though. Thanks for the refresher! Once I get the old engine out I'll grab some measurements and see what kind of clearance I should have below the engine. I think that will be a good base to build from even if I have to come up with a different sheet metal lower tank for clearance or added capacity.
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
I'm running my BHW near vertical with an ALH oil pump/pickup and this pan with no issues.
 

J_dude

Veteran Member
Joined
Jan 9, 2020
Location
SK Canada
TDI
2003 1.9l “Jedi”
I didn't know that was a thing, I'll see if I can find it. Thanks!
Here, just hit “add media”
Then see post #48:
 

jmodge

Veteran Member
Joined
Jun 18, 2015
Location
Greenville, MI
TDI
2001 alh Jetta, RC2 w/.205's 5speed daily summer commuter and 2000 alh Jetta 5spd swap, 2" lift, hitch, stage 3 TDtuning w/.216's winter cruiser, 1996 Tacoma ALh
Some of those older adapters didn't have inserts in the starter bolt holes. If your's doesn't have inserts, I would strongly suggest you install helicoils or something comparable. I had problems with my starter bolts staying put until I put helicoils in.
 

jmodge

Veteran Member
Joined
Jun 18, 2015
Location
Greenville, MI
TDI
2001 alh Jetta, RC2 w/.205's 5speed daily summer commuter and 2000 alh Jetta 5spd swap, 2" lift, hitch, stage 3 TDtuning w/.216's winter cruiser, 1996 Tacoma ALh
Personally I would go as far as redoing the aluminum starter adapter to facilitate 3 mounting bolts fastening the starter assembly to the engine adapter. That's if it has two starter bolts like mine that are on one side of center. It's just something that could stand improvement.
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
Some of those older adapters didn't have inserts in the starter bolt holes. If your's doesn't have inserts, I would strongly suggest you install helicoils or something comparable. I had problems with my starter bolts staying put until I put helicoils in.
I will keep that in mind, thanks for the heads up. I’m actually still trying to ID this adapter kit as well. It looks like a similar design to the TDConversions unit, but the pieces aren’t billet and any engraving is all done by hand. I don’t know if it’s just a really old version of their kit, or if it came from someone else. All of the other SBC adapters I’ve been able to find on google are very different designs, the other reason I’m thinking it might be from tdc is that one of their universal engine mount kits was included with the rest of the stuff I got, but that doesn’t necessarily mean anything in and of itself.
 

Mozambiquer

Vendor , w/Business number
Joined
Mar 21, 2015
Location
Versailles Missouri
TDI
1998 VW Jetta TDI. 1982 VW Rabbit pickup, 2001 VW Jetta TDI, 2005 VW Passat wagon TDI X3, 2001 VW golf TDI, 1980 VW rabbit pickup,
This is sweet! I had a diesel chevette a few years back, but it was the factory 1.8l Isuzu engine with 52 horsepower. If you need a turbo, I've got one I think would be a pretty good size. Its a Garrett turbo from a Nissan 300zx
 

03Golfer

Well-known member
Joined
Apr 8, 2020
Location
Canada
TDI
03 Golf
Lastly is the universal engine mount. Does anyone have any pictures of this setup on an engine?





Do these help? Once you get the plates bolted to the engine it's fairly apparent. Just make sure you chase the threads because they're usually filled with rust and crud.

Also I'd guess that's an early TD conversions kit, they are (were?) cast and machined, not billet. (Now I'm looking at their site it looks like their brand new stuff might be billet - mine certainly isn't though).


As for coolant tank I thought G13 required use of pressurized expansion tank to limit contact with air so it doesn't gel up. I thought G12 was OK in non pressurized tank though. Can't find documentation at the moment though, so maybe someone can confirm?
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta





Do these help? Once you get the plates bolted to the engine it's fairly apparent. Just make sure you chase the threads because they're usually filled with rust and crud.

Also I'd guess that's an early TD conversions kit, they are (were?) cast and machined, not billet. (Now I'm looking at their site it looks like their brand new stuff might be billet - mine certainly isn't though).


As for coolant tank I thought G13 required use of pressurized expansion tank to limit contact with air so it doesn't gel up. I thought G12 was OK in non pressurized tank though. Can't find documentation at the moment though, so maybe someone can confirm?
That is quite helpful! I couldn't figure out which plate was supposed to attach to which side. I spent about 20 minutes trying to line up various combinations before having to go inside and eat dinner. I'm not sure about g13 either. I haven't heard anything through Porsche about it gelling due to air contact, but I know g12 and 13 will gel up if mixed with other coolants. My engine plate is definitely a cast piece, the transmission plate looks cut and machined but is hard to tell with the paint.
 

jmodge

Veteran Member
Joined
Jun 18, 2015
Location
Greenville, MI
TDI
2001 alh Jetta, RC2 w/.205's 5speed daily summer commuter and 2000 alh Jetta 5spd swap, 2" lift, hitch, stage 3 TDtuning w/.216's winter cruiser, 1996 Tacoma ALh
Mine is an older TD, aka NW Fab, cast aluminum and clockable. That appears what you have. Member, evguy, (something along those lines) Randy Holmequist. Was his original design and marketing, he had them manufactured by Northwest Fab whom he eventually sold the business to when he joined the ranks of the happily and intentionally unemployed.

I believe I have over 50% of my facts straight, my apologies if not
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
This is sweet! I had a diesel chevette a few years back, but it was the factory 1.8l Isuzu engine with 52 horsepower. If you need a turbo, I've got one I think would be a pretty good size. Its a Garrett turbo from a Nissan 300zx
I never managed to get that Isuzu engine running quite right. I bought this car back in 2007 when gas was first hitting $5 by me and it didnt have the head or any of the top end on the engine. Had all the parts, the guy just lost interest half way through a head gasket job. I put it all back together with the scraps of info I could find. I’m pretty sure that I mis-timed the pump though. I think it’s too far retarded since it’s a nightmare to start and smokes even at idle lol. I’m much more familiar with the TDI lumps, and I have access to this great wealth of info here so I think it will end up being a fun little combo. I may be interested in that turbo too, could you give me a few more details on it please?
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
Mine is an older TD, aka NW Fab, cast aluminum and clockable. That appears what you have. Member, evguy, (something along those lines) Randy Holmequist. Was his original design and marketing, he had them manufactured by Northwest Fab whom he eventually sold the business to when he joined the ranks of the happily and intentionally unemployed.

I believe I have over 50% of my facts straight, my apologies if not
Nice, I appreciate the info! Definitely more reassuring to have something like that than some possible wish.com or Ali express unit lol. My transmission plate will definitely need to be modified a little bit to fit the smaller bellhousing and allow for the clutch cable, but the important bolts are in the right spots. Once I get the engine put together and off the stand, I’ll spend some time playing with starter orientation to see if I can get this thing to clock still. I may not even need to lean it at this point.
 

PickleRick

Veteran Member
Joined
Nov 29, 2017
Location
Greenville sc
TDI
05 GLS BHW sedan 5 speed conversion. BHW Carver SantaCruz in progress
Not sure what Isuzu engine you have but several of those came in marine form so it might have some resell value. The little 50 hp vw 1.6 non turbo motors (sold under pathfinder in name) were viewed about the same, worthless and slow on the road but for a sailboat, trawler or marine generator application they demand top dollar due to their modern day parts scarcity.
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
Not sure what Isuzu engine you have but several of those came in marine form so it might have some resell value. The little 50 hp vw 1.6 non turbo motors (sold under pathfinder in name) were viewed about the same, worthless and slow on the road but for a sailboat, trawler or marine generator application they demand top dollar due to their modern day parts scarcity.
This one is a 4FB1. I have seen a couple people swap these into samurais as well. I definitely wasn't going to throw it away though. Although that's also why my garage looks like it does. "Oh that will be useful" "I can make something neat out of that" "I'm not sure what this is, but I should hold onto it just in case"...
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
Some pictures from todays progress. Got the engine out and started clearing out the engine bay for a good wash. This 80s gunk is something else. Lava soap barely puts a dent in it lol.


Some pictures of the Isuzu lump. Didn’t take any measurements yet, but seems pretty close to the same size as the ALH, but definitely heavier.






And the deep sump pan that made the extraction much more difficult than it needed to be…

I ended up cutting garage time short today as I was getting absolutely mauled by mosquitoes. But I did grab some pictures of the mechanical pump before coming in. I was hoping someone may be able to shed a bit more light on this particular unit for me. Google search of the part number on the side of the main case points to it being an AHU based pump with the electronic QA swapped out for this top unit. The part number is 028 130 115 P. I’m curious about the second lever on this thing. What does it do, what’s it supposed to be hooked up to? Am I going to need to find AHU injector lines for this thing?





Im at the point on the engine where I just need to pull the stock ip and then I can mount this up and start stringing the new belt. I’m a bit concerned that there weren’t any caps on any fittings though. I may have it pulled down and cleaned out just to be safe. I’d hate to have this thing grenade on its first start.
 

jmodge

Veteran Member
Joined
Jun 18, 2015
Location
Greenville, MI
TDI
2001 alh Jetta, RC2 w/.205's 5speed daily summer commuter and 2000 alh Jetta 5spd swap, 2" lift, hitch, stage 3 TDtuning w/.216's winter cruiser, 1996 Tacoma ALh

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
But that looks like so much fun! Were your bolts breaking, or pulling threads? Looks like a broken one getting welded for extraction.
 

jmodge

Veteran Member
Joined
Jun 18, 2015
Location
Greenville, MI
TDI
2001 alh Jetta, RC2 w/.205's 5speed daily summer commuter and 2000 alh Jetta 5spd swap, 2" lift, hitch, stage 3 TDtuning w/.216's winter cruiser, 1996 Tacoma ALh
It is fun, minus the mosquitoes though. Had problems with them loosening up, even with red threadlocker. Thought I could be lazy and just helicoil the outside one. Checked it a few times and it seemed ok so I forgot about. Didn’t start the other day when I was in GR. Both bolts broken. The outside one with the helicoil came right out. The inside one broke about 3/16” below flush. Been fighting me. I’m on my 4th attempt, built the weld up slowly this time, grinding as I go. I’ll try to remove it tomorrow.
 

Mozambiquer

Vendor , w/Business number
Joined
Mar 21, 2015
Location
Versailles Missouri
TDI
1998 VW Jetta TDI. 1982 VW Rabbit pickup, 2001 VW Jetta TDI, 2005 VW Passat wagon TDI X3, 2001 VW golf TDI, 1980 VW rabbit pickup,
I never managed to get that Isuzu engine running quite right. I bought this car back in 2007 when gas was first hitting $5 by me and it didnt have the head or any of the top end on the engine. Had all the parts, the guy just lost interest half way through a head gasket job. I put it all back together with the scraps of info I could find. I’m pretty sure that I mis-timed the pump though. I think it’s too far retarded since it’s a nightmare to start and smokes even at idle lol. I’m much more familiar with the TDI lumps, and I have access to this great wealth of info here so I think it will end up being a fun little combo. I may be interested in that turbo too, could you give me a few more details on it please?
Its a t2/t25 hybrid watercooled turbo.
Here's the specs I found.
I'm thinking $150 for it.
Stock Z32 TT turbos are Garrett TB02/22 turbos. They carry the following specifications:

CompressorTurbine
Wheel TrimInducer DiameterExducer DiameterHousingCFMWheel (Trim)Exducer DiameterInducer DiameterFlange Style
T240mm51mmTB22304 (Max)T22 (69)38.9mm47mmT25
  • These turbos use a 270 degree thrust bearings (journal bearings) in the CHRA.
  • Water cooling is used for longevity.
  • Internal Wastegates are used for compactness.
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
Its a t2/t25 hybrid watercooled turbo.
Here's the specs I found.
I'm thinking $150 for it.
Stock Z32 TT turbos are Garrett TB02/22 turbos. They carry the following specifications:

CompressorTurbine
Wheel TrimInducer DiameterExducer DiameterHousingCFMWheel (Trim)Exducer DiameterInducer DiameterFlange Style
T240mm51mmTB22304 (Max)T22 (69)38.9mm47mmT25
  • These turbos use a 270 degree thrust bearings (journal bearings) in the CHRA.
  • Water cooling is used for longevity.
  • Internal Wastegates are used for compactness.
Seems like it should work, at least for getting up and running anyway lol. Someone with better math and engineering smarts than myself would likely be able to figure out where it peaks out, but I’m not going to be pushing this thing hard off the bat anyway. Pm me some payment info and I’ll get that ball rolling
 

mlemorie

Veteran Member
Joined
Aug 15, 2009
Location
Romulus Michigan
TDI
2004 Jetta
Alright, been a bit slow on progress as of late, have had some other things going on and I've also been doing a bit more reading on the M TDI setups. The more I read, the more I feel like I should leave this as an E TDI and not have to worry about playing with pump timing anytime I want to swap injectors or turbo etc. The engine I bought came complete with ecu and both sides of the ECU harness are fully intact. Is there an easy way to distinguish between the MSA and EDC ecms? I'm going to look into keeping the electronic controls a bit more here, plus that would also solve my glow control issues. No more having to try and adapt the diesel Kiki system, or trying to source an old mechanical vw glow system. I wanted to do a mechanical swap because I figured it would be as close to a drop in and go as I could get, but with the T5 and other parts I've already sourced, there is already more work to be done and some wiring isn't the worst of it lol. My ALH is still on the engine stand at the moment, so my plan for this Sunday is to bolt my my adapter and gearbox onto my other BEW block so I can have that ready to set into place once the last of the interior and carpet get removed. Then I can get the shifter opening cut off the body and adjusted. That will also let me get some measurements to draw up a new transmission mount bracket since this camaro t5 has a 22⁰ (I think) slant on its tail mount.
 
Last edited:

sackman

Veteran Member
Joined
Jul 30, 2009
Location
Oregon
TDI
2(2003) 2Dr ARL/ASV
I'm running my BHW near vertical with an ALH oil pump/pickup and this pan with no issues.

ECS tuning site says this for fitment of the pan on an ALH:
" Requires trimming of a/c compressor housing and oil pan lip for proper fitment"

Is this pan better suited for BEW/BHW?
 
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