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Engine Discussion of preventative/corrective maintenance and other technical issues regarding your coach's engine.

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  #1  
Old 01-31-2008
tjseitz tjseitz is offline
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Default Radiator Repair/Replace 91 SP

Hey guys Austin Gibbons 91 SP has a leaking Rad. Pretty much right in the center of the rad. So seeing how it is going to coming out for repairs / replacement, depending on how it looks on the inside. So Im looking for a bit of advice on fixing it. If I remember correct. Cant you get a bigger (more fins) rad. that would cool better than the original??

Or whats your suggestions?? Thanks for any help. Tom
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Old 01-31-2008
Stephen Stephen is offline
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it would be more tubes they are offset in design to fit in the same space or tanks
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Last edited by Stephen; 02-01-2008 at 06:08 AM.
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  #3  
Old 02-01-2008
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I agree with Stephen, offset fins(modern design) keep it cooler than the original.
Just finished changing mine couple months ago. Made a world of difference in temps.
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  #4  
Old 02-01-2008
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I replaced my radiator core 18 months back with an offset-tube design. It's kept the water temperature under excellent control -- even while climbing above 10,000 feet on I-70 across the top of Colorado in late summer. (I only wish the oil temperature was as well behaved!)
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  #5  
Old 02-04-2008
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ajgibb ajgibb is offline
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Quote:
Originally Posted by tjseitz View Post
Hey guys Austin Gibbons 91 SP has a leaking Rad. Pretty much right in the center of the rad. So seeing how it is going to coming out for repairs / replacement, depending on how it looks on the inside. So Im looking for a bit of advice on fixing it. If I remember correct. Cant you get a bigger (more fins) rad. that would cool better than the original??

Or whats your suggestions?? Thanks for any help. Tom
Following up on Tom's earlier posting
-- Is there anyone on the forum with first hand experience doing a radiator R & R on an SP?
-- Are there any special "gotchas" in the job?
-- Is there anything special about the standard SP radiator that an ordinary truck radiator place would have problems with in terms of repaid/rebuild?
-- Has anyone substituted a new "5 tube" for the old "3 tube" on an SP?
-- Are the "5 tube" units easily available? Where?
Thanks much
Austin
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  #6  
Old 02-04-2008
Stephen Stephen is offline
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no there a no gotchas just some work removing and replacing one heavy rad
A heavy duty rad shop can handle the job if the tanks are bad they can be replaced
the offset tube design is also called high effiency core usually 5 tube in place of three
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  #7  
Old 02-05-2008
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iamflagman iamflagman is offline
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Quote:
Originally Posted by ajgibb View Post
Following up on Tom's earlier posting
-- Is there anyone on the forum with first hand experience doing a radiator R & R on an SP?
-- Are there any special "gotchas" in the job?
-- Is there anything special about the standard SP radiator that an ordinary truck radiator place would have problems with in terms of repaid/rebuild?
-- Has anyone substituted a new "5 tube" for the old "3 tube" on an SP?
-- Are the "5 tube" units easily available? Where?
Thanks much
Austin
Austin,

I would take a look at this CAT 3208 BELT NUMBERS and their PROPER ADJUSTMENT as it is importatnt on a Cat 3208 to adjust the belts properly in the sequence that is laid out in this post. They may be alittle different on a rear engine configuration, but I would look at it anyway.
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  #8  
Old 02-11-2008
tjseitz tjseitz is offline
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Thumbs up SP Rad. Update

Hi guys. Just an update on the 91SP rad. project. We pulled the old one out and decided to replace with it with newer technology. We went with the 5 tube stagered row core. It turned out to be a real nice fit in the frame and filled it up completly. Here are coulpe pictures. I even talked Austin into painting the fan.hahaha So be sure to ask him to see his fan when you see him. hahaha I wanted to paint it silver or chrome color.(chrome goes faster dosnt?) Thanks again for all your help guys. Tom
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Last edited by tjseitz; 02-11-2008 at 09:45 PM. Reason: want to add pictures.
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