elvisvwvw
Member
i was trying to find anyone do that kind of conversion on the internet.
so any help would be apreciated,
the car is 1.9 tdi 81kW
so any help would be apreciated,
the car is 1.9 tdi 81kW
hydraulic valve lifter to adjustable valve lifter
- Thread starter elvisvwvw
- Start date
oilhammer
Certified Volkswagen Nut & Vendor
I think the old JH engine (1.8L high-output SOHC CIS gas GTI engine) uses the larger solid lifters that can be used in the TDIs. I had this info somewhere and cannot find it. 
elvisvwvw
Member
thank you i'll explore it
elvisvwvw
Member
just a standard cam, in my village country i dont have many aftermarket cams for tdi i heard a "story" that with lifter mod can gain a lot more torqe than with ordinary H. lifter??
i heard a "story" that with lifter mod can gain a lot more torqe than with ordinary H. lifter??
G60ING
Top Post Dawg
- Joined
- Aug 5, 2001
- Location
- MD
- TDI
- No TDIs Currently, I have an R36 Corrado. I've had an ALH Corrado swap, AHU Corrado swap and 2003 TDI Jetta
I've never heard of that. Also you would need to get the correct adjustment shims and tools for swapping the shims. I thought cams were made to run one type of lifter or the other and that you shouldn't mix and match a hydraulic lifter cam with mechanical lifters.
oilhammer
Certified Volkswagen Nut & Vendor
Depending on the lobe profile, that is true.
However, if you were wanting to build an extreme performance TDI that could spin a little faster safely, a solid lifter affords easier use of stronger valve springs. Not sure though it would really matter on a VE TDI as the pump itself may be the limiting factor for RPM.
However, if you were wanting to build an extreme performance TDI that could spin a little faster safely, a solid lifter affords easier use of stronger valve springs. Not sure though it would really matter on a VE TDI as the pump itself may be the limiting factor for RPM.
Matt-98AHU
Loose Nut Behind the Wheel Vendor
TDIs don't rev that high anyway... even a heavily modded one won't go much further than 6000 RPM. Most of VW's gas engines that still use hydraulic lifters will exceed that.
elvisvwvw
Member
my goal isnt to make engine spin faster but to improve intake and exhaust without porting the head , i thought that hyd. lifters had some problems when the oil gets hoter and more fluid... i mean that the oil pressure is a factor witch determines opening distance of the valve.and with solid lifter that factor would be eliminated
the tool itself to adjust valve tolerances isnt a problem
sorry for my bad english!
the tool itself to adjust valve tolerances isnt a problem
sorry for my bad english!
rentstdi
Veteran Member
I got a JH head just sittin in a box, later on I will take measurements of a lifter for ya
elvisvwvw
Member
oilhammer
Certified Volkswagen Nut & Vendor
I think you are not understanding how a [properly functioning] hydraulic lash adjuster works. They do not vary the lift with oil pressure or engine RPM. The internal springs regulate that. I do not think a conversion to solid lifters is going to help in your goal of better flow through the head.
G60ING
Top Post Dawg
- Joined
- Aug 5, 2001
- Location
- MD
- TDI
- No TDIs Currently, I have an R36 Corrado. I've had an ALH Corrado swap, AHU Corrado swap and 2003 TDI Jetta
Frank06 is switching cam companies but his grind will probably yield the same results if not better:
http://forums.tdiclub.com/showthread.php?t=295122
http://forums.tdiclub.com/showthread.php?t=295122
Last edited:
rentstdi
Veteran Member
JH lifters
35.00 mm diameter
28.34 mm total hight without adjusting shim
2.76 mm deep recess at the top for the adjusting shim
21.34 mm bottom recess to valve mating surface
Normal shims are around 3.80mm-3.90mm
Rent
elvisvwvw
Member
thanks guys for help, this was educational, a lot,
as for the theory i am still convinced that solid lifter will open valves more 0.25mm or 0.15 mm when hot depends on adjusting shims ,than hydraulic lifters. and to combine this with cams this is an improvment
thanks guys once again
best regards, elvis
as for the theory i am still convinced that solid lifter will open valves more 0.25mm or 0.15 mm when hot depends on adjusting shims ,than hydraulic lifters. and to combine this with cams this is an improvment
thanks guys once again
best regards, elvis
rentstdi
Veteran Member
I can donate lifters and shims. I don't have a jh anymore and just have a whole head lying in the garage. Some day I will have a garage sale...
elvisvwvw
Member
no problem...i'll try it in a couple of weeks, for now i will keep hyd lifters.. about donating ..heheheh
someone closer maybe...
someone closer maybe...
rentstdi
Veteran Member
I wonder how much shipping to croatia would be?
Matt-98AHU
Loose Nut Behind the Wheel Vendor
I will note that when VW switched from solid lifters to hydraulic with the 1.6L non-turbo diesel, they lost 2 hp!
So going back to the solid/mechanical lifters may very well yield a hair more power
So going back to the solid/mechanical lifters may very well yield a hair more power
oilhammer
Certified Volkswagen Nut & Vendor
Yeah, funny though because both my 52hp A2s always felt signifigantly peppier than ANY of my 54hp A1s did, despite the A2 being a bit heavier. Must be the gearing.I will note that when VW switched from solid lifters to hydraulic with the 1.6L non-turbo diesel, they lost 2 hp!
So going back to the solid/mechanical lifters may very well yield a hair more power
And my 48hp A1 felt peppier than any of them! It just had no 5th gear, and the 4 speeds in those days really only allowed for about 70 MPH cruising speeds to fell comfortable, far too slow for me. So when we moved to the sticks, I reluctantly sold my little Bunny to my brother, where it was sadly tooefed slowly over the course of the next two years