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post #1 of (permalink) Old 09-03-2002, 01:10 PM Thread Starter
 
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And the parts store monkeys do it again!

I've been helping a friend do a head job on an 83 Toy p/u with the 22R engine. We took the head off and sent it out to a local parts chain that does machine work to have it shaved and inspected. We got the head back on the other day, and when we fired it we found that there was no compression in #4. After some debating and futzing around with the timing chain, we pulled the head back off. We flipped it upside down and poured some water into the combustion chambers, which promptly went flowing out the exhaust runner. Turns out the idiot forgot to seat the valve! Back to the store we go, maybe this time they'll get it right!
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post #2 of (permalink) Old 09-03-2002, 01:47 PM
 
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Re: And the parts store monkeys do it again!

Always use a reputable machine shop. PepJerks/AutoJerks are good to re-plenish your supply of Gojo and wax for your tow rig. [img]images/icons/tongue.gif[/img]
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post #3 of (permalink) Old 09-03-2002, 02:29 PM
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Re: And the parts store monkeys do it again!

Is pouring water down the head a good thing? In auto shop, we used gasoline.
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post #4 of (permalink) Old 09-03-2002, 03:11 PM
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Re: And the parts store monkeys do it again!

As long as you don't let the water sit and corrode the metal then its not a problem. I can understand using gas because that is what would come in contact with the head during use, but I also see that as a hazard. There is the chance of a spill and quite frankly the less time I need to spend with gas the better. But back to my point, the water won't matter.
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post #5 of (permalink) Old 09-03-2002, 03:25 PM
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Re: And the parts store monkeys do it again!

I agree, if I need something off the shelf, I go to those stores, otherwise I visit NAPA. Too bad they're so high priced on everything.
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post #6 of (permalink) Old 09-03-2002, 03:52 PM Thread Starter
 
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Re: And the parts store monkeys do it again!

Normally, these guys are good. When I worked at a PepBoys-type store, it's the same place we sent out the heads we were working on. To forget something as simple as how to install a valve correctly though is pretty bad. The chain is like a local NAPA, quality parts - not cheap stuff like Advanced Auto.

The amount of water we poured into #4 was negligible, maybe a cup. The exhaust runner sees more moisture as a byproduct of combustion.
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post #7 of (permalink) Old 09-03-2002, 05:53 PM
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Re: And the parts store monkeys do it again!

You did not mention it but did you adjust the valves after you installed the head? They would have to really screw up to cause the volume you describe. However as Grandpa Jones said "truth is stranger than fiction". Also did you check for valve to piston clearance before you torqued the head? Look on the top of the piston for nicks.

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post #8 of (permalink) Old 09-03-2002, 07:15 PM Thread Starter
 
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Re: And the parts store monkeys do it again!

Yes, we adjusted the valves quite a few times. They did really screw up, after we did the water trick we looked more closely at the #4 exhaust valve, and there was a small (1/32") gap under the valve. The piston is in fine shape, they have a funky shape anyways, so the valve cleared the piston.
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