|
|
|
|
| Author |
|
|
Registered User
Join Date: Apr 2011
Posts: 41
|
77, 924, compression
Hi. the compression on the 4th cylinder is 60 psi, and the other 3 are at 120.
it idles roughly and stalls sometimes. should i change the valvles? wires, cap, etc. are all new. |
||
05-09-2011, 03:02 PM
|
|
|
Registered
Join Date: Sep 2005
Location: Royal Oak, MI
Posts: 1,303
|
You could check the valve clearances, but most likely it needs a headgasket and valve job while you're in there.
A leakdown test will also provide more information to confirm valves, etc.
__________________
Vaughan Scott http://www.vaughanscott.com http://www.924.org |
||
|
05-10-2011, 03:52 AM
|
|
|
Registered User
Join Date: Apr 2011
Posts: 41
|
that's what we're doing today.
thanks a lot bud |
||
|
05-11-2011, 08:07 AM
|
|
 |
|
|
| Tags |
| 1977 , 924 , low compression , porsche , rough idle |
