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Author Topic: Adjusting Valves? New Valves...New Head  (Read 2449 times)

August 20, 2008, 06:33:59 am

chrisrandle1

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Adjusting Valves? New Valves...New Head
« on: August 20, 2008, 06:33:59 am »
Hello;

I am installing new valves into a new head and was wondering how you adjust the valves.  I thought I remembered reading somewhere that you grind the top of the valves.  If so what is the installed height?  Step by step would be nice, but any information that would help me finish this part of the project would be greatly appreciated.

Thanks
-Chris


1992 EcoDiesel - Soon to have P n P Head, T3 Turbo and more!!!

Reply #1August 20, 2008, 03:40:50 pm

Jet A

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Adjusting Valves? New Valves...New Head
« Reply #1 on: August 20, 2008, 03:40:50 pm »
Shims in the lifter buckets.  I am not quite there yet, so i dont know the specs.
85 vw golf NA ----> 2b TD  Daily Driver
Converted to hydraulic head (Thanks zukgod1)
td04 turbo, Zex nitrous (for the big hills), PITA motor, fresh rings w/ ceramic pistons.
Custom Intake and Exhaust
Ported and polished head
Dipricol EGT, FP, Boost,
Autometer, Oil Temp, Water Pressure

Reply #2August 20, 2008, 04:19:17 pm

Possum79

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Adjusting Valves? New Valves...New Head
« Reply #2 on: August 20, 2008, 04:19:17 pm »
The shims are only for Mechanical heads? That eco is hydro isnt it?

I though the hydraulic heads didnt have an adjustment. I dont own one and have never worked on one so I dont know.
1979 VW Rabbit Diesel L
My car may be ugly but im addicted to it.

Reply #3August 20, 2008, 05:16:11 pm

chrisrandle1

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Adjusting Valves? New Valves...New Head
« Reply #3 on: August 20, 2008, 05:16:11 pm »
Yep its Hydro.  Anybody...?
1992 EcoDiesel - Soon to have P n P Head, T3 Turbo and more!!!

Reply #4August 20, 2008, 05:31:42 pm

Jet A

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Adjusting Valves? New Valves...New Head
« Reply #4 on: August 20, 2008, 05:31:42 pm »
My bad....Didnt know they were hydraulic. thats what you get for assuming
85 vw golf NA ----> 2b TD  Daily Driver
Converted to hydraulic head (Thanks zukgod1)
td04 turbo, Zex nitrous (for the big hills), PITA motor, fresh rings w/ ceramic pistons.
Custom Intake and Exhaust
Ported and polished head
Dipricol EGT, FP, Boost,
Autometer, Oil Temp, Water Pressure

Reply #5August 22, 2008, 10:56:46 am

duffer

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Adjusting Valves? New Valves...New Head
« Reply #5 on: August 22, 2008, 10:56:46 am »
See page 28 of the Bentley manual
   In the ENGINE Section.

   The installeded height of the valve stem
   is calculated relative to the gasket
   surface (valve cover) of the cylinder
   head and the valve seats.  

   Maximum: 1.5mm
   Minimum:  0.5mm

   At least, I think I've got that right.
   I hope that's what you're looking for.

   If it's a "new" cylinder head and "new"
   valves the valve stem height should
   likely be within those specs.