Attempted to do the KDP fix today - All right you KDP gurus - explain this one!...

[Dan_69GTX]

The gear case is not painted and the data plates are glued on, instead of rivited, so I'm assuming the gear case has already been replaced for some reason - KDP maybe??



I pulled the front cover off the gear case and found something interesting (wish I had a digital camera but don't so I'll attempt to explain).



The surface area where the dowel pin is, is raised about 3/16 of an inch or so from the surface area where the bolt is. The front end of the dowel pin hole has a raised edge, making the hole a few thousands of an inch smaller in diameter and the dowel pin is recessed into the hole about 1/4". This means there is no way that the dowel pin could come out. It was fully seated. In the inside of the timing case cover appeared to be a date coded, 11 99.



Is this gear case one from a later model engine or is this a "new and improved" version for the 12 valvers??



Also noticed that the instructions on the service manual and from some areas on this site state to install the front seal from the outside - that is almost impossible. It also states to remove the belt tensioner - don't need to, but you do need to remove the fan hub bracket... . oh well. .



Can anyone tell me why the difference in my gear case??



Thanks!

Dan

 

[Joseph Donnelly]

I posted in your earlier thread that your gear case had most likely been replaced. The date code and your description of the pin area indicate that it is a replacement case with the new design that is intended to retain the dowel in case it gets loose. If it were for a later model engine, it would also be for the VP44 not the P7100. It is the updated case for the 12 valve.

 

[Dan_69GTX]

Thanks Joe



Yes, you did respond in an earlier post - and I thank you again for that. I guess in my mind I expected an "exact replacement" for the case, not one that would have solved the KDP issue.



I just wanted to be sure that the case was proper not some jurry rig.



I asked the dealer around here (maybe 1 star dealer) about problems with the dowel pin. He stated that he keeps the case in stock because of it cracking, but didn't know why they cracked or what caused it. (wow - how comforting!)



Guess I can update my sig now!



Dan