| Author |
Message |
revhi109
Samba Member
Joined: October 14, 2013
Posts: 7
Location: Minnesota
|
 Posted: Fri May 09, 2014 12:41 pm Post subject: Valve Adjustment Issues |
 |
|
| I bought a rebuild engine and I am trying to properly adjust the valves. I got all the cylinders in spec except for the last one (#2). I have hydraulic lifters and stock 261mm puchrods. The last cylinder has a about .25" of slack when the adjusters are as tight as they will go. Any ideas? |
|
| Back to top |
|
 |
jt912
Samba Member
Joined: March 16, 2006
Posts: 207
Location: Eugene, OR
|
| Posted: Mon May 12, 2014 2:51 pm Post subject: |
|
|
Three questions.
A) Hydraulic lifters in a 912?
B) Intake or exhaust valve?
C) .25"? 1/4"? One quarter of an inch? Wow! |
|
| Back to top |
|
|
revhi109
Samba Member
Joined: October 14, 2013
Posts: 7
Location: Minnesota
|
| Posted: Wed May 21, 2014 9:12 am Post subject: |
|
|
| I forgot to specify which car I have. Its a 914 with a 1.7 bus case, 2.0 cylinders, and 1.8 heads. I just removed my hydraulic lifters and pushrods and put in solid lifters. After I made the switch it was better. All of my cylinders are adjusted to spec except #2. intake is set although the adjuster screw is almost maxed out. The exhaust valve is maxed out and still has too much play. Not quite .25 of an inch, probably about .1" to .2" of extra slop. |
|
| Back to top |
|
|
VWporscheGT3
Samba Member
Joined: September 01, 2006
Posts: 2076
Location: Gardnerville, NV
|
| Posted: Wed May 21, 2014 11:36 am Post subject: |
|
|
have any extra pushrods laying around? maybe you have a short one?
_________________
Schnell, SCHNELL!
I like being wrong, Because, it is another opportunity to learn. If you stop learning from your mistakes than what is the point?
If you have any questions about Forged ICON 4032 VW pistons just shoot me a line. |
|
| Back to top |
|
|
revhi109
Samba Member
Joined: October 14, 2013
Posts: 7
Location: Minnesota
|
| Posted: Wed May 21, 2014 12:29 pm Post subject: |
|
|
| Yeah I just bought a set of solid rods/lifters. put em in and same problem. Didnt realize that there is a different cam for hydraulic and solid lifters. Ugh... Must be a problem with the exhaust valve or something. |
|
| Back to top |
|
|
revhi109
Samba Member
Joined: October 14, 2013
Posts: 7
Location: Minnesota
|
| Posted: Wed Oct 29, 2014 6:29 am Post subject: |
|
|
| It ended up being a lose rocker arm mounting stud. When backed out you cannot fully tighten the rockers to the head. Feel dumb now. |
|
| Back to top |
|
|
|
