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Cracked GTR Block

benjiman74
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ph1 Rising Star

ph1

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Posted

are you sure its a crack?

i have heard that some later model r33 blocks (96 onwards) had porosity issues due to reduced material in the casting process, apparently its only an external issue and typically occurs in the area around the turbo oil feed line.

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benjiman74 Collaborator

benjiman74

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Thanks ph1. The car is a 1995 model and it definately is a crack. The car has plenty of big$ bolt ons but the rb26 is internally stock. I have access to a mates standard RB26 that I want to build with forged pistons, balanced crank etc but this would be done over trhe next 12 months. If I buy the car now I am hoping the slight loss of water will not create other problems until I perform the transplant. What do you think may have caused the crack? I have heard only impact to the motors ancillaries such as power sterring pump bracket can cause the block to crack but after several investigations I can confirm this car has not been hit in the front. It is running a modest 1.2bar.

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GTS20X Enthusiast

GTS20X

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Try chemi-weld, normally used for temporay repair of blown head gaskets and cracked heads. I have heard good results of it working permantly as well, one was from a tech teacher who stripped down a truck engine do replace a blown head gasket, found a crack bolted it back together and put chemi-weld in a while later they removed the head and sent it away to get the crack fixed only the crack was gone.

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