Anyone installed these on their TDI and what torque values did you use,the ones that came in the box or the torque specs from the repair manual.Only reason I ask is these things where made for the Ford Cosworth engine ,not a VW.Thanks.
ARP Head Studs
- Thread starter matiii1
- Start date
Yeah it looks like stock are stretch bolts with total torque is 44 lb +1/2 turn more.The studs final torque value is aroun 80-86 lb.I thought that might be to high compared to stock,but I guess since there different types of fasteners thats right...
Mahoutsukai
Veteran Member
- Joined
- Jun 9, 2002
- Location
- Phoenix, AZ
I've installed over 4 sets of ARP headstuds the A4 TDIs.matiii1 said:
Before this mod I was getting about 44MPG freeway on my 2002 Jetta TDI (Upsolute StageII/Upsolute FMIC/Sprint 520).
On my car with 85K miles, driving an indicated 75MPH on a non-altitude changing, relatively straight freeway I get 53.3MPG after doing this modification. I get 43MPG in the city.
Steps for proper ARP installation on the A4 TDI:
1. Unpack and clean with alcohol all the parts (gets the sticky packing grease off of them)
2. Prepare all of the bolts before starting by covering them all with the included ARP installation grease that is included. Basically, get it in all of the threads and cover all the washers, and bolts so that they look "grease grey" all over. On the nuts use a q-tip to make the threads on the inside grey with the ARP grease.
3. Remove your plastic engine cover, and crank case cover.
4. You'll need a from [FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Part MN0812 - 12 Point Driver Set [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT]from metalnerd.com or a similar [FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]12 mm,12 point driver to remove the factory headstuds.
(NOTE: If you are going to use the metalnerd tool, it is long and will require you remove your EGR to get the one of the headstuds out. If you're removing the EGR, then this is a great time to cleaning out your intake and install an elephant hose, or CCV catch can and an Epsilonian device.)
5. Remove the 1st headstud. You will need a breaker bar, and it comes off with a scary "snap" sound.
6. Put your the first prepared ARP headstud in (allen wrench side up) and use an allen wrench to tighten it all the way down. Don't over tighten, just a little past snug.
7. Put the prepared washer and nut on the headstud and tighten it down Using a torque wrench and bring it to 65lbs. (ARP instructions on their website say to tighten, to something less than final torque, 5 times before final toque to seat the fastener correctly. Continue following these instructions to see how this is done)
8. Loosen it completely using a normal socket wrench (NEVER USE YOUR TORQUE WRENCH TO LOOSEN ANYTHING YOU'LL DESTROY IT!)
9. Use the torque wrench to tighten to 70lbs.
10. [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Loosen it completely using a normal socket wrench.
11. [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Use the torque wrench to tighten to 70lbs.
12. [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]10. [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Loosen it completely using a normal socket wrench.
13. [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Use the torque wrench to tighten to 70lbs.
[/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]14. [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Loosen it completely using a normal socket wrench.
15. [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Use the torque wrench to tighten to 70lbs.
[/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]16. [/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Loosen it completely using a normal socket wrench.
[/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT]17. [FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1][FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-1]Use the torque wrench to tighten to the final 80lbs.
18. Hooray! You've installed your first headstud, now just repeat steps #5-17 over and over again until you're done.
[/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT]
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jasonTDI
TDI GURU Vendor , w/Business number
Wow! sounds like quite a workout! Where are you getting them from?
Mahoutsukai
Veteran Member
- Joined
- Jun 9, 2002
- Location
- Phoenix, AZ
You can get them from Summit Racing.jasonTDI said:
Here's a picture of the box:
Here's a picture of what's in the box:
I used racewares. If I were to do it again, however, I would use the ARP ones. The Racewares don't have the nifty indent in the tip that allows you to use a tool to insert them like the ARP do. That makes the RW somewhat of a PITA.
TDIPASSATGUY
Veteran Member
How on earth does the type of head stud/bolt effect fuel consumption as Mah... suggests?
Mahoutsukai
Veteran Member
- Joined
- Jun 9, 2002
- Location
- Phoenix, AZ
Apparently the top-end and bottom end don't seat together as well with the stock headstuds once you do any power increasing modifications to the car .TDIPASSATGUY said:
It's been suggested that the headgasket gets pinhole leaks that account for lost fuel efficiency with the stock headstuds.
Some say that this is impossible and the only thing that can cure this is a replacement headgasket.
It's a topic that's been argued over and over again, been beat to death, dug up, kicked around, re-buried, etc.
The real world tests show that this is a mod that works, and has shown MPG improvement on many, many TDIs. It just works.
I would suggest that any one, with any power mods do it if they want to keep their MPGs up.
jasonTDI
TDI GURU Vendor , w/Business number
I just odered my set to go with the bad head gasket replacement. I to have seen a signifigant drop in fuel economy over the past year. Winter fuel taken into account here. About 5-6 mpg less. From low forties to upper 30's. (up 1 and pp520's)Also with 130K hard miles I need to do the followers as a few of them have a grove wearing in and all have scuffing. Delvac 1 changes every 5-7.5K miles. Car will now be FMIC added and EGR system deleted. New turbo is on the list now.....
Kabin
Veteran Member
Do ARP head studs work on PDs?
hgeittmann
Veteran Member
Or a 1Z???
jasonTDI
TDI GURU Vendor , w/Business number
Are there instructions for the torque on putting the studs in the head before the nuts? If not what torque?
gbangs
Veteran Member
If you look in the RaceWare website catalogue, all TDI (ex PDI) use the same kit.hgeittmann said:
To me, that means our 1Z will use the same kit as this Cosworth kit.
$114.99 vs. $179.99 (Not to mention the hex head accomodation) sounds like a winner to me!
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RabbitGTDJoe
Veteran Member
Mine came today
From EIP, in the raceware variety... Expensive, more than the ARP as well and that was at the old price which I was lucky to get them at (179.00 +shipping). Just in case anyone is looking for Raceware's, don't "search" for the page on them. The price list comes up isn't "good" i guess according to them directly. There is a 10.00 increase in price and they charged about 10 for shipping... I've always used raceware...was lookin to try ARP but they gave me a pretty good deal at the old price...
christdi8r
Member
- Joined
- Mar 10, 2006
I bought racewares when I put my motor back together. I should have gone with ARPs to save the money though.... The ARPs look NICE!
BoosTDIt
Veteran Member
Hey Mahoutsukai...is the secquence in the instructions ?
like 1,10,2,9, or do we start from the centre out 6,3,7,4,5,8,2,9,1,10....
i'm just making things up - no manual just going by the total count of studs and some basics i know...so don't laught ...i don't know the TDI secquence
like 1,10,2,9, or do we start from the centre out 6,3,7,4,5,8,2,9,1,10....
i'm just making things up - no manual just going by the total count of studs and some basics i know...so don't laught ...i don't know the TDI secquence
Mahoutsukai
Veteran Member
- Joined
- Jun 9, 2002
- Location
- Phoenix, AZ
No, there is no torque for puting the studs in the head before you do the nuts.jasonTDI said:
LOL LOL LOL!!!! OH!!! LOL LOL LOL LOLBoosTDIt said:
The sequence doensn't matter because you do them one at a time. However, here's the answer to your question if you were actually removing the head and doing them all at once:
Here's the actual instructions in the box:
And for the next question that's sure to be asked next (I told you this horse has been kicked to death a few times now) here is where ARP explains about how to get the fasteners torqued down:
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BoosTDIt
Veteran Member
right-click save...
So if i'm not taking the head off it doesn't matter from which i start? Where do you usualy start then ...i guess what i mean for clarity is ..do i do them in a cross pattern or just one after the other ?
I believe i'm in dire need of those ....
So if i'm not taking the head off it doesn't matter from which i start? Where do you usualy start then ...i guess what i mean for clarity is ..do i do them in a cross pattern or just one after the other ?
I believe i'm in dire need of those ....
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Mahoutsukai
Veteran Member
- Joined
- Jun 9, 2002
- Location
- Phoenix, AZ
BoosTDIt said:
Mahoutsukai said:
I usually go 7,5,1,3,9,8,6,2,4,10BoosTDIt said:
BoosTDIt
Veteran Member
i think that answers anything anyone might throw at you
shortysclimbin
Veteran Member
great post! if you dig you can find this info though! This is more to the point. lets bookmark this page for others to see. With the amount of people doing upgrades into bigger turbos and such this is one of those I should do mods. (my 2 cents)
BoosTDIt
Veteran Member
yep good idea...it has all the info of a How-To compiled together
Polar_TDI
Veteran Member
Did I miss the answer to this or is it still unknown?Kabin said:
Mike_M
Veteran Member
You ain't kidding. *wince* My back still hurts. I just put them in at Mahoutsukai's house over the weekend, with his expert and patient tutelage.jasonTDI said:
(And his tools.)BTW, thanks again, Bruce! The car even feels/sounds "harder" somehow...I can't explain, but I'm very sensitive to the sounds my car makes. The normal sound just seems a little "harder-edged". It very well have made a big difference, but I won't know for a tank or three.
Mike
Mike_M
Veteran Member
I think "gbangs" answered that up above. He said that according to RaceWare, all TDIs except PDs use the same kit.Polar_TDI said:
Not sure that's definitive...you might want to contact either Summit Racing, ARP, RaceWare, or some combination of the three.
Mike
jackbombay
Top Post Dawg
Just ordered some The constant rumors of notably improved mileage reported here over the years finally got to me.
The constant rumors of notably improved mileage reported here over the years finally got to me.
jackbombay
Top Post Dawg
Ohhh, is the cam cover gasket re-useable? I have never read of anyone mentioning replacing it so I assume it is reusable, but haven't ever looked it up in my bently.
jasonTDI
TDI GURU Vendor , w/Business number
You mean the cam seal? Yes, since you aren't taking the cam out. If you pop out the cam i'd change it.