69a Block Oil Gallery Crack. Centre bearing 69a block being checked has revealed a crack showing in centre bearing at top side running up to under side of cam bearing area.
Is this able to be recovered by stiching methods or similar ? Or to source another block? Appreciate any experience or assistance on this one. Phil NZ |
Re: 69a Block Oil Gallery Crack. Centre bearing Not nice; a highly stressed area of block...find another one
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Had thought on pinning at ends of crack. Is this a common area to locate a crack? Phil NZ |
Re: 69a Block Oil Gallery Crack. Centre bearing Phil, I've never seen a crack there, but there's lots I've not seen....
I take it this is the hot engine you recently bought off trademe? Any cracks through main bearing webs can be considered fatal. sorry! |
Re: 69a Block Oil Gallery Crack. Centre bearing Quote:
So a 59a, 69a or an 8BA will take this rotating assembly then. The search for these begins. Phil NZ |
Re: 69a Block Oil Gallery Crack. Centre bearing What size bore is that block?
I may be able to help. |
Re: 69a Block Oil Gallery Crack. Centre bearing Sorry to hear about this. I agree with Brian comments about it being fatal.
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Brian, Its a 59a and at present its out to 3 5/16 plus 30. Idea now is to rebuild up the stroker engine less this faulty block. Phil NZ |
Re: 69a Block Oil Gallery Crack. Centre bearing pm sent....
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Re: 69a Block Oil Gallery Crack. Centre bearing Yep . . . sorry to hear about this one, but the kiss of death!
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Re: 69a Block Oil Gallery Crack. Centre bearing Quote:
Just now to push on and work through it. Phil NZ |
Re: 69a Block Oil Gallery Crack. Centre bearing Can you post a picture of the crack? Maybe not the end of the world?
Thanks John |
Re: 69a Block Oil Gallery Crack. Centre bearing Frank Casey to the rescue
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Re: 69a Block Oil Gallery Crack. Centre bearing I’ve got a few blocks I swear I’m gonna put right in the middle of the lawn and plant flowers in ‘em. I also would like to see some pics and comments on how this would happen. Sorry to hear about this one......Mark
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Re: 69a Block Oil Gallery Crack. Centre bearing I've heard reports about cracks in the center main bearing web but I've never actually seen a block with a crack there -- just about everywhere else but not there. Would be nice to see a photo.
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Re: 69a Block Oil Gallery Crack. Centre bearing Quote:
Hence need to have block checked both crack wise and pressure tested where it also failed. This has been the good advice passed on from this Forum. I thank all for input as always. Phil NZ |
Re: 69a Block Oil Gallery Crack. Centre bearing Well due to a very very helpful Barn member in NZ I believe I will have a good replacement block to put all this lot back into.
This original engine, just rebuilt and ready to go was far from it. ie water leaks, crack in block, the quoted flathead Ross pistons upon inspection are dome top which will fit nice with the new Edelbrock heads so there are a couple of plus items here. Phil NZ |
Re: 69a Block Oil Gallery Crack. Centre bearing Phill, what cc heads are you using, and bore and stroke.
Lawrie |
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Cam: 5T is being ground to 8CM grind. Will be running a Holley 4 barrel 390cfm on a Speedway Inlet manifold. Scat gear with dome top Ross Pistons. Phil NZ |
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