| | |
| |||||||
 | Chevy Truck Forum - Chevrolet / Chevy trucks and their accessories forum. |
| | LinkBack | Thread Tools | Search this Thread |
11-17-2008, 03:48 PM
| #1 |
| Full Member Join Date: Nov 2008
Posts: 17
 | 1989 Chevy Silverado Compression Hey! I am new to this forum so first off, hey! Ok my question is, i have a 5.7 liter 350, with alot of miles, and i am smoking some from the left bank.. i did a compression test today, and all the cylinders had bout 160, with one closer to 150psi.. what should this engine have? Thanks |
|  |
|
11-17-2008, 05:04 PM
| #2 |
| Senior Member  Join Date: Mar 2008 Location: N.Y.
Posts: 4,913
 | welcome to the forum thats about right for compression, sounds like the valve seals are dried out, i'd try that first
__________________ 4 wheels move the body 2 wheels move the soul B.W.A.I |
|
| |
|
11-17-2008, 05:13 PM
| #3 |
| Full Member Join Date: Nov 2008
Posts: 17
| Thanks! I was hoping it was the seals, the oil is pretty clean and doesnt seem to be using much if any. |
|
| |
|
11-17-2008, 05:28 PM
| #4 |
| Senior Member Join Date: Mar 2008 Location: N.Y.
Posts: 4,913
| Then drive it like ya stole it till it breaks 
__________________ 4 wheels move the body 2 wheels move the soul B.W.A.I |
|
| |
|
11-17-2008, 06:09 PM
| #5 |
| Senior Moderator  Join Date: Apr 2006 Location: Texas
Posts: 9,521
| seals are easy to replace in that block. just dont do like my BIL did and drop one after he took the lock off the top. |
|
| |
|
11-17-2008, 08:03 PM
| #6 |
| Full Member Join Date: Nov 2008
Posts: 17
| Yea i was told u can put air into the cylinders and rent a tool from autozone to change them.. |
|
| |
|
11-17-2008, 08:09 PM
| #7 |
| Full Member Join Date: Nov 2008
Posts: 17
| Hey what are the specs on this engine? I found something like 210hp, is this right? what is the torque? It has a HyperTech chip, but i was told it was for gas mileage.
__________________ 1989 Chevy Silverado 1500 |
|
| |
|
11-18-2008, 05:41 AM
| #8 |
| Senior Moderator Join Date: Apr 2006 Location: Texas
Posts: 9,521
| its true, but for safety sake, i would have the piston up as far as it could go. i think i bought my vavle spring removal tool, sounds important huh, for 20 bucks somewhere. it aint nothing special but has worked great for me. |
|
| |
|
11-18-2008, 08:49 AM
| #9 |
| Full Member Join Date: Nov 2008
Posts: 17
| I agree i would hate to lose a valve! SOmeone told me the factory valve seals arent much to begin with, and usually give out and have to be replaced.. i have a 1993 W/T with a 4.3 it smokes like crazy when u start it up.. the clears right up.. i have had it for 3 years and it doesnt seem to get worse..
__________________ 1989 Chevy Silverado 1500 |
|
| |
|
11-18-2008, 09:06 AM
| #10 |
| Banned Join Date: Mar 2008 Location: levittown pa
Posts: 2,197
| yeah if it clears up right away its the valve seals.. whats happening is a little oil is getting down the cylinders after you turn it off.. not a big deal unless you are worried about smokin outh the naighbors and replacing your cat every 50000 miles |
|
| |
|
| Thread Tools | Search this Thread |
|
Similar Threads | ||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Chevy 6.0 compression | chevy6-0 | Chevy Truck Forum | 5 | 04-27-2009 09:32 AM |
| 1989 Silverado pickup will not stay running when put in gear | Frederick | Chevy Truck Forum | 13 | 10-28-2008 10:38 AM |
| 99 Chev Silverado-Low compression | rockitman | Chevy Truck Forum | 10 | 12-04-2007 07:09 AM |
| chokes on power/1989 silverado | abner | Chevy Truck Forum | 7 | 12-12-2006 08:13 AM |
| 1989 Chevy Silverado 2500 CK Pick up for sale CHEAP N NEED GONE QUICK in ILLINOIS | The Freak | Truck Classifieds | 1 | 10-27-2006 02:37 PM |
