21 stud cam installed in my 59AB I had my 59AB rebuilt after a 21 stud disaster at the same machine shop. They still had my 21 stud cam. When I picked up my engine, they said they installed the wrong cam. As far as I can tell, the 59ab cam was usable. I asked why they used the wrong cam, no good answer. I also had to buy a adapter for the crab distributor. My question are the cams grinds close enough to leave it for now? PS, They ruined my 21 stud block when they installed 2 new sleeves in 4 and 8, both leaked top and bottom. Not known until I put it together. They rebuilt my 59AB to make up for it. So I had to use them. Somehow they came highly recommended. Just part of the nightmare restoring my 36 pickup. I have started and run the engine, and it seemed to run fine. Thanks for your help. Ron
|
Re: 21 stud cam installed in my 59AB >>>They ruined my 21 stud block when they installed 2 new sleeves in 4 and 8, both leaked top and bottom.>>>
How's the 21 ruined? If the 24's not broke, don't try to fix it. Jack E/NJ |
Re: 21 stud cam installed in my 59AB How about getting a couple sleeves done by some who knows what they're doing? Or did the actually ruin RUIN the block?
|
Re: 21 stud cam installed in my 59AB I used block seal and I believe it washed all the bearing and ruined them. I have $770 in machine work, $750 in parts, $150 in pressure test, and was scared to put any more money in it. Thanks for the replies. Ron PS I paid $250 just for the rod bearings
|
Re: 21 stud cam installed in my 59AB To answer your question, yes, apart from running the spacer for the distributor, you'll have no problems using the earlier cam
|
Re: 21 stud cam installed in my 59AB If they bored out the 21 stud to use 3 3/16 sleeves they might have bored away the connection between deck and bottom...otherwise the block should be saveable.
If it leaks at the bottom where sleeves end i have a trick to fix that...bare block. The cam geometry between pre/post war engines is a bit different...if you will notice it...not likely... |
Re: 21 stud cam installed in my 59AB The Tex Smith flathead book has an article where some folks bored a 37/38 21 stud for 3 3/16" ID sleeves. They left a step at the bottom of each cylinder and used JB-Weld at top & bottom during installation to help support the deck for all 8 cylinders. They modified a 4-inch crank shaft to get 255 CID for a 1935 Ford coupe. They ran the Great American Race with it and had no problems. The JB-weld sealed the cylinders but they still set it up for a relatively tight sleeve fit. I don't now how much cylinder wall was removed but in the photos, it appeared to be a lot.
I think I'd look for another machinist if they had sleeve leaks. There is always a way to seal a wet sleeve if a person knows what they're doing. The prewar blocks had different valve angles than the post war types but I don't think it will affect the use of an early cam in a later 59 series block. All you mention is that is was a 21 stud but there were several types. The 36 block was different than the later 37/38 ones but the later ones can use the block off plates for the water pumps and still use the heads with pumps in them. A lot of stuff can be made to work if you know the parts to use. The 36 had the divers helmet distributor but the 59 series were all crab/rabbit ear types. |
Re: 21 stud cam installed in my 59AB I doubt if there's any real significant/noticeable difference in performance between the early cam vs later cam on an engine built for the street.
Your mind is probably set on using a crab style distributor rather than a stock 36 distributor, but a 36 distributor will bolt right up to the earlier/longer cam IF the timing gear cover is changed to an earlier 3 bolt style. |
Re: 21 stud cam installed in my 59AB I bored a 37 block too 3 3/16 and rah 8ba rods, pistons and crank. No sleeves. block is quite thick/ Had to turn the mains down on the crank.
|
Re: 21 stud cam installed in my 59AB Thanks to all who replied, great info and answer. Ron
|
Re: 21 stud cam installed in my 59AB You didn't get the work done in Grant's Pass did you?
|
Re: 21 stud cam installed in my 59AB Gresham, OR
|
Re: 21 stud cam installed in my 59AB Quote:
|
Re: 21 stud cam installed in my 59AB I too run a 37 block taken out to 255 cubes. Got the bores sonic tested prior to machining, machinist told me there's still enough meat in there for one more bore. I certainly doesn't overheat or any other issues.
|
Re: 21 stud cam installed in my 59AB '37- early '38, 21 stud blocks can usually be bored to 3-3/16" without a problem. That's not the case for '36 and earlier blocks.
|
Re: 21 stud cam installed in my 59AB The -37 blocks usually take even 3 3/16 + .040 but boring it for a 3 3/16 sleeve is like you should try to bore it for a 3 3/8 piston...
Sleeving a 3 1/16 with a std sleeve and boring it to 3 3/16 you end up with a very thin sleeve.... |
Re: 21 stud cam installed in my 59AB Sorry! I should have said my 21 stud block is a 37-38 with the block off plates. Ron
|
All times are GMT -5. The time now is 05:11 AM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.