Classic Winnebagos & Vintage RVs
Topic Boards => Chevy - GMC Chassis => Topic started by: kattkisson on May 28, 2015, 06:12 AM
I have a 1992 454 with TBI. I has no air pumps etc.
It has 3 drive belts. The serpentine mutligroove flat belt drives the fan and alternator and takes a Napa 25-060525; The AC is driven by a v-belt that uses the hydroboost/ps as an idler and goes around it's own sheave on the fan shaft. It takes a napa 25-7603 which has the following dimensions--13/32 X 60 5/8".
The remaining belt is where my question is. It is from the crank to the hydroboost/ps. There are no other wraps or idlers I am currently running a Gates 9415HD which has a 1/2" top and is somewhat around 40" around.
This belt is too wide and as such presents an interference It sets to high in the pulleys. I think I need a belt with the same top dimension as the AC belt which is 13/32"
This set up doesn't show up in NAPA's computers. Can anybody help me out with a belt # that even if not napa's I can cross? Thanks in advance.
A 15410 belt is 3/8" wide and 41". Gates 1410. Gates 1390 is 39". A good parts guy can find what you need.
I used the 15410 on mine.
http://s283.photobucket.com/user/RAT4548/media/RV/New_belts_zpsf4521ee2.jpg.html (http://s283.photobucket.com/user/RAT4548/media/RV/New_belts_zpsf4521ee2.jpg.html)