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Old 10-28-2002, 11:49 AM
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Angry valve job

ok, i know this is an EXTREMELY broad question, but what are the symptoms i might see if i need a valve job? I'm workin' on a truck right now, and i'm not real sure about the timing--i can't get it set. once i thougt i got it set (by ear--the timing chain cover has no dial to match up with the balancer), i drove it a little, and it still ran real rough, so i shut it down, and the next time i tried to start it, it would barely run. if i touch the gas at all, it dies. the plugs are slightly fuel fouled, and the plug wires i'm not sure about. so, my question is does that sound like a timing/plug/wires problem or a valve problem?

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Old 10-28-2002, 12:41 PM
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What kind of truck is it, and what type of engine? My '86 chevy Suburban w/ a 350 has a timing tab that is really hard to find. You actually have to look down behind the water pump. In between the back of the water pump and the timing chain cover is where the timing tab is visible for my engine. Hope this helps you some.
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Old 10-28-2002, 12:46 PM's Avatar Moderator
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Had a 230 Chevy 6 that was built to the limit yet acted like yours. Turned out that I had used the old distributor which hd such a worn out shaft that I could open and close the points gap just by wiggling the rotor! Check that, put on a good set of wires if you aren't sure of the age of what you have, check all the wire connections (mine had a bad crimp in hte + lead to the coil and ran intermittently because of it), make sure your plugs and points are ok and gapped properly and it should run well enough that your ear set method of timing should be fine.

PS Is your engine a 235 straight 6? If so, the timing mark is on the flywheel and you can see it rhru a hole in the block just above the starter motor. There is even a pointer cast into the cast iron. The mark is a shiny ball bearing pressed into the flywheel and shows up really well with a timing light.

[ October 28, 2002: Message edited by: ]</p>
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Old 11-01-2002, 06:36 AM
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sorry so long, ive been out of town.
ha ha, i guess giving you some info. on the motor itself would have helped wouldn't it? sbc 400, all new (except block, of course) with brand new accel dist. one other thought i had was that maybe my headers cooked my plug wires, but i should be able to get my hands on it this weekend and figure some things out. any other suggestions would be great.
oh, also, i know there is no timing tab. i took it off, b/c my water pump was too close to the timing chain cover for the tab to even fit. i was rushed at the last minute to get this motor in, so getting a new H2O pump wasn't doable. guess i need to, though.
thx, all

[ November 01, 2002: Message edited by: Joe_Alan216 ]</p>
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