Cleaning the block on a head swap!
If you use graphite gaskets they are less picky than the MLS ones so minor imperfections are not going to be a problem. Run a tap through the headbolt holes to clean out the trash, if you are going with headstuds then it doesnt really matter as long as the studs are in all of the way.
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Originally Posted by PREDATOR-Z
Why are you afraid to touch the pistons??
You mean this is your first H/C install, you go through all the pain you have, without experince, then you back off at the pistons??
They are not eggshells you know.
You mean this is your first H/C install, you go through all the pain you have, without experince, then you back off at the pistons??
They are not eggshells you know.
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Originally Posted by mach1
If you use graphite gaskets they are less picky than the MLS ones so minor imperfections are not going to be a problem. Run a tap through the headbolt holes to clean out the trash, if you are going with headstuds then it doesnt really matter as long as the studs are in all of the way.
I thought you weren't supposed to use a tap?
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From: BFE
Originally Posted by jermzz
I'm using stock GM gaskets I ordered through thunder. I don't know what they're made of. I'm using stock bolts aswell, so I guess I need to get the hols as clean as I can.
I thought you weren't supposed to use a tap?
I thought you weren't supposed to use a tap?
BTW stock gaskets are graphite coated.
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Oh good, then I shouldnt have a problem 
I ground down one sid eof a bolt and did that, wasnt working well...the same as a normal bolt...i'll try grinding both sides and see what happens...
I ground down one sid eof a bolt and did that, wasnt working well...the same as a normal bolt...i'll try grinding both sides and see what happens...
Originally Posted by jermzz
Oh good, then I shouldnt have a problem
I ground down one sid eof a bolt and did that, wasnt working well...the same as a normal bolt...i'll try grinding both sides and see what happens...
I ground down one sid eof a bolt and did that, wasnt working well...the same as a normal bolt...i'll try grinding both sides and see what happens...
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From: Fat Chance Hotel
I used a bolt with two sides ground down, but before I used it I cleaned it up with a thread file. Just make sure the threads look good before running it in the block.
It's really not a good idea to start mucking with the pistons. You'll never get all of the carbon off and end up making a pattern that'll most likely cause you headaches...IMO.
Originally Posted by PREDATORZ
...then you back off at the pistons??
They are not eggshells you know
They are not eggshells you know
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Originally Posted by technical
I used a bolt with two sides ground down, but before I used it I cleaned it up with a thread file. Just make sure the threads look good before running it in the block.
It's really not a good idea to start mucking with the pistons. You'll never get all of the carbon off and end up making a pattern that'll most likely cause you headaches...IMO.
It's really not a good idea to start mucking with the pistons. You'll never get all of the carbon off and end up making a pattern that'll most likely cause you headaches...IMO.
I took a wire brush to the bolt before i put it in the block... but it still seems to not be working well..maybe i'm just over worried about messing something up...ive had the bolt in and out of one hole now about 40 times and its still comming out with atleast some gunk on it each time...not much at all, but a little... i can see it when i wipe it on a clean cloth.
should i be torquing the bolt down too a little with a wrench?
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From: Fat Chance Hotel
There's a little trick that I use when I take the heads off. I don't take the bolts completely out, first I pull up on the head and let the coolant drop then remove the bolts in order to keep coolant out of the holes. Unfortunately there is still a rediculous amount of crap in those holes. Keep at it and get as much crap out of there as possible. I used compressed air for assistance, if it available use it. Don't worry about tightening the bolt, just keep running it in and out.
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Originally Posted by technical
There's a little trick that I use when I take the heads off. I don't take the bolts completely out, first I pull up on the head and let the coolant drop then remove the bolts in order to keep coolant out of the holes. Unfortunately there is still a rediculous amount of crap in those holes. Keep at it and get as much crap out of there as possible. I used compressed air for assistance, if it available use it. Don't worry about tightening the bolt, just keep running it in and out.
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From: Simi VAlley,CA
In my shop we forbid the use of any abrasives for cleaning gasket surfaces, this includes the very popular roloc discs. I got tired of buying comebacks caused by abrasives in the engine that didn't quite get blown out. Some guys will swear that they can get all that stuff out of the engine before reassembly but there is always a chance that some stray grit will get into the oil somehow. GM published a TSB on this subject a couple years ago that advised against using ANYTHING with abrasives.
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Thanks bro, i feel really good now that one of the heads is already on.
so now im gonan have to deal with a blown motor or head gasket cause of metal shavings.
so now im gonan have to deal with a blown motor or head gasket cause of metal shavings.
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Putting everything back together now.. :-D
do i need to heat cycle or anything for the new heads? break in im assuming is probably areond 500 miles, but do I need to do anythong on start up initially? What's the process?
do i need to heat cycle or anything for the new heads? break in im assuming is probably areond 500 miles, but do I need to do anythong on start up initially? What's the process?
