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There are two unique tools that are necessary to disassemble the Opel engines. I have both that I purchased many years ago. Mine are K - D #2305 and #2306, they should be available at any auto parts store. BTW these are not TORX bits, they are unique in that regard, although they look close to TORX. HTH

Ron
 

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cam?

Part # 2304=8mm tool for cam bolts & VW axle shafts
Part # 2305=10mm tool for brake rotors
Part # 2306=12mm for head bolts

NAPA should have all of them, I just bought a new 2305 last weekend and they had 3 on hand at my local NAPA. To get the most life out of them and reduce the risk of stripping out a bolt make absolutely sure the head of the bolt is thoroughly cleaned-out and the tool is fully seated.
 

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Discussion Starter · #5 ·
thanks for the great help. I hope to have this engine totaly fresh by spring to run it in stock class at Brainerd. The engine seems to be my easy rebuild come spring a puting the whole thing together with the solex carb is going to be the tough part. I have to run with solex carb and have not heard much good about them so if anyone has had good luck please drop me a line. Thanks again for the help. I hope to be able to do good for all the opel gts and show the big boys us little guys are nothing to laugh at. Barb
 

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or from Lisle Tools.
Available at: http://www.toolsource.com and search for 60750

Lisle No. 60750 Triple Square (12 point) bits to fit 6, 8,10 and 12mm sizes; all on 1/2" hex drives. Fits some head bolts, retaining bolts, disc brake calipers and other applications.

60750 Triple Square Wrench Set, 6, 8, 10, 12mm. Skin-packed. Shipping wt. 9 oz. Dealer Price $10.95

Get the set. You will also need one to remove the cam gear.
 

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i bet every member here thinks i'm stupid or has something bad to say about this, but a 3/8's 6 point allen. we had one that was cut and put it in a 3/8 6 point socket and if you get the headbolts clean enough you can tap them in with the slightest effort and that does the trick too. i tore the motor down for my car, put it back together and tore it back down doing it this way everytime, same headbolts.
 

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Jared,

Nope, nothing stupid about that. It took me YEARS (back in the '70's) to acquire a full set of triple square drives, so I have used the Allen wrench trick myself. But they don't give as good a "grip" as the proper socket drive.

The first time I removed my intake manifold, I couldn't remove the triple square bolts that attached the manifolds together even with the proper drive, as the bolts were seized, so I drilled the heads off, separated the manifolds, and removed the remaining shafts with vice grips. Then I replaced them with socket head (Allen head) cap bolts, that are FAR easier to use than the stupid triple square bolts.

That said, I don't believe that head bolts are available for the CIH Opel in other head configurations.
 

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..."That said, I don't believe that head bolts are available for the CIH Opel in other head configurations."....
__________________
Keith Wilford

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Actually Keith, they are available in 10 mm Allen Head bolts too.
During my recent rebuild I wanted new head bolts. OGTS told me he only had 5 of the original 12 point style & 5 of the newer CIH style 10mm Allen Head style. Gil said if I didn't mind changing sockets to put the head back on, he would give me a discount for the set. So I now have 5 of each style on my new engine. :)


Tom C
 

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Beware! The later 2.2 and 2.4 CIH head bolts are grade 8.8, not 10.9 like the 1.9's have. That said, they are stretch bolts...use 'em once, then throw them away. I had a head gasket fail on a 2.4 because I used those newer bolts, won't make that mistake again.

Bob
 

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Thanks for the important info Bob

I did notice the different grade markings & was curious as to why they were lower than the original bolts. OGTS didn't inform me of this or I may have waited for a complete set of the originals. Well, if that head comes off, I'll be sure to install the older style head bolts again. I do like the 10mm Allen head design better though.


Tom C
 
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