filling block on a cummins 3.0 class go? or no go?

I've heard that you don't want to fill a block half way the harmonics will destroy it. Also as keeping the freeze plugs in they have a t type bolt in freeze plug kit that most shops sell.Clip the water pump fins some and run. Thats what we do up here and it works well.
 
Yes there are epoxy based fillers, Moroso makes one you can see it here: Epoxy Based Block Filler

I am not saying that Hard-Blok is bad as it's worked in the motor we just ran for four years, but it is cement/grout based, think about it cement cracks right?

I am thinking Epoxy/Resign fillers as long as it exspands and contracts at the same rate or close enough to Cast might be the trick.

BBD
 
what about an oil cooler if i fill my block? i'm thinkin gettin a electric water pump so i can run water through my head... then gettin something rigged up to cool my oil? good idea or not?
 
tater_thrower76 said:
what about an oil cooler if i fill my block? i'm thinkin gettin a electric water pump so i can run water through my head... then gettin something rigged up to cool my oil? good idea or not?
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Yes as Disturbed said if you can keep the oil cool enough you can run as much as you want.Will make a differance.
 
tater_thrower76 said:
what about an oil cooler if i fill my block? i'm thinkin gettin a electric water pump so i can run water through my head... then gettin something rigged up to cool my oil? good idea or not?
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I use to run water through the head with a filled block. Best thing we did is get rid of the water all together and run the head dry. We have 3 trucks running that way and 0 problems due to heat over the last 2 years. I will drive mine around the pits and pull twice if i have to. It will cool off better than you think. I do think an oil cooler is a good idea
 
extreme diesel said:
I use to run water through the head with a filled block. Best thing we did is get rid of the water all together and run the head dry. We have 3 trucks running that way and 0 problems due to heat over the last 2 years. I will drive mine around the pits and pull twice if i have to. It will cool off better than you think. I do think an oil cooler is a good idea
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Good advice from a competitor huh?? :kick: Just messin Bill! You gonna be out and running hard again this year?
 
JerrodGlover said:
Where are you guys taking off for your oil coolers?
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I am looking at a stand alone oil cooler with a elictric pump after the run, it can be turn on to pump oil through the cooler with a fan then back to the pan. But honestly if the oil is about 100 degrees before i pull on the track at the end of my run it is only about 150-160 degrees. If i make another run with in 15 minutes the temp will go to 180 and i have seen it as high as 200 after the a second pass.

So i will ask a question? At what temp is oil to hot? I ran this way all summer long every where i went made a pass and normally a pull off and all the bearings looked good when i changed them. Has anybody done a test to see how hot is to hot.
 
I would say 250-275 is where I would be concerned with the oil breaking down.
 
???? Doyou mean do we still have the stock ones, I do. If you are referring to the stand alone im going to weld 2 fittings in the oil pan a return and primary.
 
here is a post from a while back I thought I would bring back up front. Alot of good info in there on running with or without water and another year of competition behind us and am just curious if anyone has done anything different? There is potentially a new motor in the works for me and am curious to which is the best way to go.

RyanB
 
how thin can you go on cylinder walls if full filled?

good reading here! gracios
 
Might be stupid but what about filling a block thats already cracked? I know that you can pick up blocks for almost nothing but could you do it a get away with it?
 
Also look at using Embeco 885 filler..

I know this is an older thread.. Jeremy did you ever get a cooler added?? It would also be interesting to dump the cooled oil back in the valve covers to try to help drop the block/head temps... but coolant in the head should help that.. (Just a thought... )
Bryan
 
How do you fill a cummins block half way? I mean the water pump and the oil cooler basically sits in the bottom of the water jackets. Do you just fill it to the top of the water pump hole and run a oil filter re-locater and a electric water pump?
 
I've talked to a few machine shops about "partially filling" a block.

This is by no means going against what people are saying, just an opinion I've gotten more than once.

If you partially fill the block, the cylinder will likely expand right ABOVE the point where the hard-block ends, which could throw your clearances off and possibly hurt ring seal above that point.

Just another angle I hear.. Not sure how much water that theory holds.
 
If you fill a block half way, wouldn't it make sense to turn the block upside down when you pour in the epoxy and fill what would be the top half of the block? The top half of the cylinder wall is what takes the brunt of the combustion pressure when the fuel ignites.

Then I wouldn't think it would be an issue.

Filling the bottom half of the block makes no sense what so ever...
 
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