LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Cleaning the block

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Old 10-24-2004, 06:22 PM
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Re: Cleaning the block

If you have caked on burnt chunks of carbon you need a valve job. if its a white chunked stuff its coolant and you need them surfaced
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Old 10-24-2004, 06:30 PM
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Re: Cleaning the block

i got a idea take pics and post them so i can look
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Old 10-24-2004, 07:25 PM
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Re: Cleaning the block

Well, I'm replacing the heads anyway... I was just curious as to what you were talking about.

It's just typical carbon buildup, I've never seen a motor without it.
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Old 10-24-2004, 08:15 PM
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Re: Cleaning the block

If you used water in an assembled short block you had better be in a serious rush to get it fired up again,before it rusts the crank and the cyl's.Man that's a no no.
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Old 10-25-2004, 09:55 AM
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Re: Cleaning the block

Originally Posted by 1racerdude
If you used water in an assembled short block you had better be in a serious rush to get it fired up again,before it rusts the crank and the cyl's.Man that's a no no.
If you do use water try your best not to get it into the liftervalley, or you'll need to change your oil and prime the oil system before you put the intake back on. (to push any water out of the bearings clearance). If you get water in your cylinders just dry them out and lube with oil or WD-40.
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Old 10-25-2004, 10:09 AM
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Re: Cleaning the block

When I pulled off the heads, water went everywhere. I had the lifter holes plugged, but water went into thosse little holes between the lifters. I'll drain the oil and drop the pan tonight. How do I prime the system?
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Old 10-25-2004, 11:13 AM
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Re: Cleaning the block

You buy a oil pressure primer tool and use a drill to run it before you put the intake back on.
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Old 10-25-2004, 11:30 AM
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Re: Cleaning the block

Originally Posted by 1racerdude
You buy a oil pressure primer tool and use a drill to run it before you put the intake back on.
What he said, sometimes though yo uhave to undo the tranny crossmember to let the back of the motor drop far enough down to get a drill in there on some of the longer Oil pump primers.
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Old 10-25-2004, 01:01 PM
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Re: Cleaning the block

I planned on replacing the oil pump. Do I still need to do this?
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Old 10-25-2004, 01:21 PM
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Re: Cleaning the block

Originally Posted by Euclid
I planned on replacing the oil pump. Do I still need to do this?
Yes , because water may have settled into the oil galleys and can only be pushed out by the oil, if you let the motor push it out itself it could damage the bearings.
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Old 10-25-2004, 01:25 PM
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Re: Cleaning the block

The oil galleys in the oil pan, or somewhere else?
How much will a primer cost me?
Does the pan need to be off to do this?
What a pain...

Thanks!
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Old 10-25-2004, 01:30 PM
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Re: Cleaning the block

Also, how much oil will I need to get?
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Old 10-25-2004, 01:40 PM
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Re: Cleaning the block

I'd guess that only 2 or 3 shot glasses of water got in there, and I sopped most of it out. Just a LITTLE bit would have gone down the little pencil-sized holes. Should I still be worried, or can I just change the oil now and after 50 miles or so?
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Old 10-25-2004, 01:55 PM
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Re: Cleaning the block

It would take just a little water in the right spots to do it, but as little water as youre talking about, as long as it didnt go below the lifter valley you should be fine, me though I always prime my motors before putting the intake back on if the car has been setting a while, that way fresh oil is on the bearings when you start it.
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Old 10-25-2004, 02:18 PM
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Re: Cleaning the block

Yeah, I might as well give it a try. How much is the primin tool?
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