Joined: Aug 2017 Posts: 2,382 Threads: 33
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Location: Deepest Frogland 30960
Car type: 1933 RP Standard Saloon
11-02-2022, 03:53 PM
(This post was last modified: 11-02-2022, 03:54 PM by Reckless Rat.)
I would bin that and put it down to "caveat emptor". It's cracked all the way across from the camshaft to the oil gallery. More trouble than it's worth.
Might make a decent paperweight though.
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I have a crank case with a very similar crack. It was caused by rigid bolting the engine in a trials car.
Is not worth welding put it in the scrap
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11-02-2022, 06:50 PM
(This post was last modified: 11-02-2022, 06:55 PM by Austin in the Shed.
Edit Reason: Add content
)
Scrap I'm afraid,even if someone weld it the crankcase will be distorted.
I'm looking at salvaging one now,not a stripped thread on it but a really badly bodged front bearing flange where 5/16 bolts have been fitted to fix the bearings.
From experience bodged sump and strainer,most other threads on the extremities (welding up) but down the sides and top face is trouble.
I bought 3 at 750 Beaulieu for conversion,only one was very good but knew the other 2 were marginal.
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Location: North Yorkshire
As others, it's scrap. The only way to save it is by laser welding that won't distort it further but the cost will be rather more than a replacement. I think we can all say, been there, done that at some time.
Steve
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By chance I've just found a local Tig welding company thats into motor mods and repairs too, as it was originally bought for a low comp cooking engine, I'm going to let them loose on this one, if it turns moody the I've got a 'dummy motor' for my new Motor Lodge.
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Even Tigging that will be awkward amd messy
I have had a Nippy Crankcase Laser welded it cost quite a lot of money and it only had a hole in the side.
Look for another crankcase.
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Location: Auckland, NZ
Scrap? Just put aside. Myriads of items have been needlessly scrapped. many non welding ways around the filter drilling breakages and the front flange.
I wonder how many stud cracks are due pliant gaskets and/or excessive torques. With only two bearings distortion is far less a problem than with other enginet, although bearing housings should be round and the centre camshaft aligned by one means or another.
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