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Engine Specific Info and Questions => IDI Engine => Topic started by: chrisrandle1 on August 20, 2008, 03:33:59 am

Title: Adjusting Valves? New Valves...New Head
Post by: chrisrandle1 on August 20, 2008, 03:33:59 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

Title: Adjusting Valves? New Valves...New Head
Post by: Jet A on August 20, 2008, 12:40:50 pm

Shims in the lifter buckets.  I am not quite there yet, so i dont know the specs.

Title: Adjusting Valves? New Valves...New Head
Post by: Possum79 on August 20, 2008, 01:19:17 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.

Title: Adjusting Valves? New Valves...New Head
Post by: chrisrandle1 on August 20, 2008, 02:16:11 pm

Yep its Hydro.  Anybody...?

Title: Adjusting Valves? New Valves...New Head
Post by: Jet A on August 20, 2008, 02:31:42 pm

My bad....Didnt know they were hydraulic. thats what you get for assuming

Title: Adjusting Valves? New Valves...New Head
Post by: duffer on August 22, 2008, 07:56:46 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.