Cam Bearings?

[John Ratliff]

Talked to the machine shop today and got some bad news.
The area that #2 cam bearing set in [don't know the term] is almost .002 over sized from the rest. Seems to have been that way from the factory. Every thing is clean and shows no wear. The bore marks are still there.
This was discovered when they went to line bore for the cam.
He was hoping to find a bearing that would fit, but no luck.
If I go ahead and put it back together like it was, the bearing may turn and block the oil passage. Big trouble![xx(]
Have any of you Stude engine builders run into this? What did you do?
I could get another block and start over. That would be paying for 2 rebuilds. NOT GOOD![8]
I know it worked that way for 130K miles. But my luck is not as good as J.D.P.'s. Help, please.
Thanks again.


John Ratliff

[Chucks Stude]

Try Odessa Babbitt Bearing Co. in Houston, or Odessa, Tex. Google will get you there. These are the best at bearings. They make all kinds of stuff for the oil field, and have a lot of stuff on the shelf. They have saved my bacon many times. They may be able to help you.

[rusty nut garage]

what were the machine shops intentions had they found the camshaft line out of center? How were they going to fix it is what I mean to ask?
I understand the reasoning to align hone or align bore the crankshaft center line but first I'd heard on a camshaft?
If it were me I'd leave it alone, install the standard camshaft bearing and use the loctite adhesive thats made to secure bushings and bearings, not the threadlocker version.
Russ

quote:Originally posted by John Ratliff

Talked to the machine shop today and got some bad news.
The area that #2 cam bearing set in [don't know the term] is almost .002 over sized from the rest. Seems to have been that way from the factory. Every thing is clean and shows no wear. The bore marks are still there.
This was discovered when they went to line bore for the cam.
He was hoping to find a bearing that would fit, but no luck.
If I go ahead and put it back together like it was, the bearing may turn and block the oil passage. Big trouble![xx(]
Have any of you Stude engine builders run into this? What did you do?
I could get another block and start over. That would be paying for 2 rebuilds. NOT GOOD![8]
I know it worked that way for 130K miles. But my luck is not as good as J.D.P.'s. Help, please.
Thanks again.


John Ratliff

Russ Shop Foreman "Rusty Nut Garage"
57 SH (project)
60 Lark VIII 2dr sd (driver)

[John Ratliff]

quote:Originally posted by Chucks Stude

Try Odessa Babbitt Bearing Co. in Houston, or Odessa, Tex. Google will get you there. These are the best at bearings. They make all kinds of stuff for the oil field, and have a lot of stuff on the shelf. They have saved my bacon many times. They may be able to help you.

Chuck, I Tried Odessa Babbit Bearing Co. and they said they don't do any automotive bearings. Thanks for the try.

John Ratliff

[Jerry Forrester]

Here's a copy of the post I made on the news group back in Jan. '05. I have not found a solution to the problem yet. Let me know how you fix it.
Read the thread here....

http://groups.google.com/group/alt.autos.studebaker/browse_thread/thread/40f468fd9753ec39/aaa952aa7788e5cc?hl=en&lnk=gst&q=cam+bearings#aaa952aa7788e5cc

Any of ya'll ever run into the problem of too much oil clearance on the cam
with new bearings installed?
Early '62 259 block and has never been built before.
New Ted Harbit cam and new bearings.
Clearances mearsures from .004 to .0055. Should be down in the .002 range.
I've had enough engines with low oil pressure when the engine is hot and
idling. This time I want one with good oil pressure at ALL times.
Jerry (trying to keep the clearances down on the low side of the specs)
Forrester

Jerry Forrester
Douglasville, Georgia
Be sure to check out my eBay store
http://stores.ebay.com/CHROME-CHROME-CHROME_ and my EZ33 store http://tinyurl.com/2g2j88
for your shiny Stude stuff


More pix of Leo the '55 Pres HT here...http://tinyurl.com/2gj6cu

[John Ratliff]

quote:Originally posted by Jerry Forrester

Here's a copy of the post I made on the news group back in Jan. '05. I have not found a solution to the problem yet. Let me know how you fix it.
Read the thread here....

http://groups.google.com/group/alt.autos.studebaker/browse_thread/thread/40f468fd9753ec39/aaa952aa7788e5cc?hl=en&lnk=gst&q=cam+bearings#aaa952aa7788e5cc

Any of ya'll ever run into the problem of too much oil clearance on the cam


with new bearings installed?
Early '62 259 block and has never been built before.
New Ted Harbit cam and new bearings.
Clearances mearsures from .004 to .0055. Should be down in the .002 range.
I've had enough engines with low oil pressure when the engine is hot and
idling. This time I want one with good oil pressure at ALL times.
Jerry (trying to keep the clearances down on the low side of the specs)
Forrester

Jerry Forrester
Douglasville, Georgia
Be sure to check out my eBay store
http://stores.ebay.com/CHROME-CHROME-CHROME_ and my EZ33 store http://tinyurl.com/2g2j88
for your shiny Stude stuff


More pix of Leo the '55 Pres HT here...http://tinyurl.com/2gj6cu

Jerry, Thanks for all the info. The machine shop has a call into Phill Harris To see if he has any ideas. If not I am going to have him put the engine together as is. It ran 130K miles before. I won't be around for another 130K.

John Ratliff

[buddymander]

if it's a straight shot from the main gallery to the cam gallery, you could pin that cam bearing with a tube up from the main. But I think I would find a thicker bearing that was close and machine it down inside and outside.