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post #1 of (permalink) Old 04-30-2008, 07:43 PM Thread Starter
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Question Head is off.....Now what!?!? (PIC)

OK,

I removed the head to replace the head gasket. it was quite the mess in there.

questions now

1) what is that goober on the side of the middle piston in the pic below. it flaked right off and underneath didnt seem rusty. theres a tiny bit of crap below that looks like rust but i'm not sure....looks like coolant could have dripped in while it was sitting for the last 11 months and sat there and rusted....your thoughts?

2) is there a way i can tell if the cylinder walls are tooo worn? i dont feel much of a lip when i run my finger on the cylinder wall....there is one, but its pretty light...feels like a scratch more than a lip....if that makes sense.

3)can i re-polish the cylinders somehow to clean up the rusty stuff from #1 above? maybe a thing for my cordless drill where i don't need to remove any more of the engine...........just to clean it up a touch and make it "good enough for the bash"

4)how do i clean the top surface there with the valves and pistons and all that? are there any cleaners that are meant for that? I don't want to spray some cleaner only to have it pool around the edge of the piston and cause a problem when i start it up next. or have it get under the valves and get blown into the engine during start up....or something...

5)anything else i should do now at the same time since it got it all open and stuff??



I'm hitting the cylinder head with all sorts of de-greasers and gasket remover.....since theres no moving parts there, it doesn't worry me.

the pattern of the gasket re-enforces my belief that it was the cause of the smoky engine and oil in the coolant........hopefully that was the only major problem.

Once its back together I'll do a compression test.

share the wisdom!!
thanks!

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post #2 of (permalink) Old 04-30-2008, 07:57 PM Thread Starter
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now that i'm thinking about it.....

if theres no moving parts in the head....would a leaking head gasket cause oil in the coolant??? i don't think theres much oil going to a head w/ no moving parts in it!

the head gasket was still not very good, since there was definitely water in the cylinders before removing the head......but hopefully there isn't a bigger problem


anywhere else i should look????

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post #3 of (permalink) Old 04-30-2008, 08:36 PM
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Could it be that the plug wasn't seated all the way and moisture oozed down in there. Even if the plug is in the center and the motor was leaning that way could cause the moisture to run to that side. Just a thought, I know mine allways has moisture around the plugs....
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post #4 of (permalink) Old 04-30-2008, 08:50 PM
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A blown head gasket sure can cause coolant in the oil, and or oil in the coolant.

I'd clean up the cylinder. The rings don't go that far up, so it's safe. I'd have the head reconditioned, clean up the block/cylinders, slap on a new head gasket and reassemble.
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post #5 of (permalink) Old 04-30-2008, 08:56 PM Thread Starter
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Quote:
Originally Posted by LEVE View Post
A blown head gasket sure can cause coolant in the oil, and or oil in the coolant.

I'd clean up the cylinder. The rings don't go that far up, so it's safe. I'd have the head reconditioned, clean up the block/cylinders, slap on a new head gasket and reassemble.
how do i do those things....best way to clean the surface? the cylinders?

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post #6 of (permalink) Old 04-30-2008, 10:16 PM
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I'd knock it down with emery cloth and oil using finer grades. Put a rag in the cylinder to catch the debris, wipe it out and blow it out with compressed air.
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post #7 of (permalink) Old 05-01-2008, 11:37 AM
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"00" (and finer) steelwool dipped into diesel/kero works pretty well for removing surface rust/carbon also...

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post #8 of (permalink) Old 05-01-2008, 04:04 PM
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I would use a wire wheel on a drill or grinder to clean up the top of the block. Ive done that many times, works well.
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