The Stupid Engine Questions Thread

[DRAGGIN95]

I really like AC Delco Rapid Fire plug's.

 

[94Sierra4x4]

Good, i can stick with the whole ACDelco thing i've got happening then. I'll check them out.

Quick Q for you aswell draggin.. oil on plugs = valve seals pooched?

 

[DRAGGIN95]

Yeah it could be valve seal's of possibly ring's.

 

[94Sierra4x4]

I figured if it were rings i'd be burning a lot of oil and smoking blue, but okay, either way that sucks. How much tear down is involved.. I haven't done much internally on these engines.. valve covers & intake manifold off to get to valve sealz? i'm not sure

 

[heavychevy98]

Valve seals CAN be done with nothing removed but valve covers and rocker arms and springs. but you'll have to bring each individual cylinder up to tdc to keep valves from falling out and have a valve spring compressor made to do springs this way and still be careful not to turn the motor with the valves down. getting the springs and locks back on is always fun to.

 

[chevy-92]

You can pressure up the cylinders with air so you don't have to turn the engine over when you want to do the other cylinders. But you have to have the fitting for the spark plug hole and be able to hook that up to air. That's the way that I do them.

 

[94Sierra4x4]

I could come up with the fittings and I have an air compressor. I'll look into it more.
In the mean time, would throwing some leak-stop additives in the oil help me get some extra miles outta her before I dig in?

 

[Jumpmastr82nd]

Hey fellows, new to the site and liking it so far...stupid question time (one of many to come I'm sure)...

1997 gmc Sierra 1500 4x4 Z71...5.7 ltr locked up on wife while in Iraq, sat a year, sent to local shop for rebuild. Terrible experience but here's my problem....

I arrived to pick up truck and it was still on lift while the guys there finished up. I walked under, noticed cut crimped oil hard lines leaking oil. Looked up followed lines to small oil/trans cooler and also saw no oil filter relocation/adapter kit, just a filter screwed in block. he mumbled about it wasn't nothing and that the lines were bad anyway. Also noticed the flywheel cover was missing and I had a brand new torque converter. I left to go talk to manager (18 yr old girl) about the lines and all that. She said with the time we had agreed on she didn't have time to order one and would get it and I'd return. I really needed my truck so I went along with it. I got the bill and noticed the charge for torque con. And flywheel. I asked why it was changed. She said it was "locked" up. I paid and agreed to come back for repairs. Which brings me to questions I can't seem to nail down simply...

1. Can a torque con./flywheel go from driving fine with no drivetrain issues to report, sit for 8 months in Ft Bragg, then GO BAD?
2. Does the lines that were cut and crimped play significant role in moving oil? I've had a steady flow from the two lines ever since and lose quarts a week.
3. Did they use a non 4x4, older TBI, or anything other than the stock block to rebuild it? Thus causing need for torque converter, flywheel and then no adapter kit for the oil cooler/filter relocation deal?
4. If so, would that explain missing flywheel cover, and now, a sudden serious leak from water pump and the starter to always miss/grind?

I know that's a lot...and I replied to a post...and I'm a noobaroni, but any help is GREATLY appreciated....

In a nut shell, does placing any other nearly completely but not exactly compatible block with my vortec heads on my Z71 cause any of the above mentioned bullish and why?

Thanks a ton and I look forward to contributing.....

 

[gmcyukondriver]

Does anyone know what PAC stands for?

 

[Hezsus]

2 Quick Questions

what is good vaccume? i'm pulling 17hgs at idle through the booster line?
and,
what play, if any is acceptable in the dizzy, i have about 1/8-3/16" play?
thanks fellas