Dowel are they important??

hi there, i am building a "donkey" engine with all the left over parts , in that way i am using one 850 drive side case with a post 200 OOO 750 timing case , so these are not definitly matching case in the real world !! but they match as long as you are looking after the mating faces , but I do not have any dowels (the two are missing) , is that so important , or could it help the crank to fit better in those cases...........???

I think if it were mine I would cut a couple pieces from the end of an old 1/4 inch drill bit to make some dowels. Jim

Hi Jim, thanks for your quick reply, but on those cases the dowels are hollow, and the bolts jointing the two cases are passing through them,(a piece of tube if you see what i mean) , only on early 750 cases they are solid and 1/4 ", i had allready ream the through bolts holes to 10mm and will use high tensile bolts , i imagine they were there to avoid any shuffing between both halves??

hi , funny I just read the previous post about iso , and you are talking about those dowel, bush!!

marinatlas said:

Hi Jim, thanks for your quick reply, but on those cases the dowels are hollow, and the bolts jointing the two cases are passing through them,(a piece of tube if you see what i mean) , only on early 750 cases they are solid and 1/4 ", i had allready ream the through bolts holes to 10mm and will use high tensile bolts , i imagine they were there to avoid any shuffing between both halves??

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I understand now. I had thought you were fitting a timing cover instead of missmatched case halves. Sounds like you got it handled. Jim