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Discussion Starter #1 (Edited)
I’m rebuilding my -92 Diablo engine. I’m stuck and can’t get the heads off. I need the head bolt tightening tool!! I can’t find it anywhere. Have one on order from Bullstuff but none available in Italy. Waited three months already. Anyone know what to do? I’ll rent one for the price it cost to buy it if anyone have one to lend me.



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Take the correct size box end wrench and a socket extension to a weld shop and have them make one like the picture.

Steve
 

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I tried the weld it up approach, with no real success. There is a lot of torque that occurs on the tool due to the design and perhaps metal composition.

Try calling Evans Automotive Repair our of Columbus, Ohio. They specialize in early Lamborghini parts and tools. They might have one in stock.

Hope this helps.




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I've had success with welded tools. The key to it is that the welder needs to be an expert in order to deal with the steel alloys used in hand tools. Another possibility is this company who looks like they can make a long crow foot adapter that could be used with a standard socket extension.

https://belknaptools.com/crowfoot-adapters/

Another possibility would be to use a box end wrench of a suitable length along with a piece of hardened hex bar stock inserted in the end opposite the head bolt. You would then use a standard wrench or socket on the other end of the hex bar stock. The hardened bar stock material is available from McMaster Carr:

https://www.mcmaster.com/hex-stock

Steve
 

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Discussion Starter #5
I got a Craftsman 15mm and en extension from Sears. Found a machine shop to weld them together. It did the job just fine. I’ll take a picture later and post it.


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I've had success with welded tools. The key to it is that the welder needs to be an expert in order to deal with the steel alloys used in hand tools. Another possibility is this company who looks like they can make a long crow foot adapter that could be used with a standard socket extension.

https://belknaptools.com/crowfoot-adapters/

Another possibility would be to use a box end wrench of a suitable length along with a piece of hardened hex bar stock inserted in the end opposite the head bolt. You would then use a standard wrench or socket on the other end of the hex bar stock. The hardened bar stock material is available from McMaster Carr:

https://www.mcmaster.com/hex-stock

Steve
Do you mean one of these Steve?
 

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