Serpentine Belt tensioner

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puzzigully
Posts: 72
Joined: Thu Aug 21, 2014 9:46 am

Serpentine Belt tensioner

Post by puzzigully » Thu Mar 22, 2018 8:27 pm

Hoping someone can help!

have a 1987 Callaway Corvette and the tensioner appears to be not "tensioning" properly.
It appears to have lost most of its tensioning abilities - i guess the internal spring can weaken over time?

I purchased a 1987 Corvette tensioner, believing it was the std item that Callaway installed the oil pump onto (quite clever really), but when my mechanic went to swap out the tensioner, he tells me its "the wrong one"

don't have too much more detail as yet, but my question is:
Is the std 1987 tensioner used to mount the oil pump on?
how do you replace the tensioner?
Do you have to replace the oil pump at the same time? (i.e. is it a complete swap out??)

Thanks

avcwo
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Joined: Tue Mar 31, 2015 12:12 pm

Re: Serpentine Belt tensioner

Post by avcwo » Fri Mar 23, 2018 10:42 am

It IS different. Callaway has the parts to rebuild it, including the spring. WISE ADVISE is to have them rebuild the whole assembly ($400.00.) The pump is old and may be working well now, but WILL fail due to age/use. IF it FAILS, you will get the dreaded “suck the oil out of the oil pan and dump it into the tailpipe syndrome.” Like it sounds, the oil pools in the turbos, goes past the bearings and out the exhaust pipe...until the oil pan is depleted.... that of course causes catastrophic engine failure....

The rebuild from Callaway is complete. You will get back a NEW looking scavenge pump (your original.) WORTH THE $$...
AVCWO
1987 CTTC #9 of 184
GEAUX NAVY!!
GEAUX LSU TIGERS!!

avcwo
Posts: 54
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Re: Serpentine Belt tensioner

Post by avcwo » Fri Mar 23, 2018 10:43 am

A STANDARD TENSIONER WRENCH WILL WORK. REPLACE THE BELT AS WELL. You have to special order that. 2250 MM, 6 rib.
AVCWO
1987 CTTC #9 of 184
GEAUX NAVY!!
GEAUX LSU TIGERS!!

puzzigully
Posts: 72
Joined: Thu Aug 21, 2014 9:46 am

Re: Serpentine Belt tensioner

Post by puzzigully » Fri Mar 23, 2018 7:55 pm

I had Callaway rebuild the pump, but they did not rebuild the spring (probably because I didn't ask them to because I wasnt aware of the problem)

My problem now is, that I (and the car) am in Australia ans want to fix the lack of tension...

Can anyone suggest how to achieve this.....I thought it was as simple as replacing the pulley on a std tensioner with the oil pump...

Obviously not the case?

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SurfnSun
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Re: Serpentine Belt tensioner

Post by SurfnSun » Fri Mar 23, 2018 8:36 pm

I believe boostedmaxpsi actually replaced the spring in his tensioner. Might send him a message

puzzigully
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Re: Serpentine Belt tensioner

Post by puzzigully » Sat Mar 24, 2018 4:56 pm

Thx, I have pm-ed him... will report back the reply.

puzzigully
Posts: 72
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Re: Serpentine Belt tensioner

Post by puzzigully » Sun Apr 08, 2018 7:03 pm

I have pm-ed boostedmaxpsi and Callaway Chris - no reply so far :(

Also called Callaway and left message for Chris, still no reply
Although its a tad difficult as they are on East coast time and I'm on Australian time!
Not a lot of overlap when they're at work and I'm awake lol

Can anyone else provide any input?

Cheers

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SurfnSun
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Re: Serpentine Belt tensioner

Post by SurfnSun » Sun Apr 08, 2018 7:29 pm

Our PM notification emails don’t seem to be working properly. I have sent a text to boostedmaxpsi for you.

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SurfnSun
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Re: Serpentine Belt tensioner

Post by SurfnSun » Sun Apr 08, 2018 7:30 pm

I will PM you his email as he doesn’t do the forums...he said he posted the vids to YouTube.

puzzigully
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Re: Serpentine Belt tensioner

Post by puzzigully » Mon Apr 09, 2018 8:49 pm

Got it!

Thanks! much appreciated! :)

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