Velvet drive 71c

cheetah1

Recruit
Joined
Apr 22, 2013
Messages
1
Would anyone know how much,if any play should be at the INPUT shaft (push/pull) of a Borg Warner 71C.
It was rebuilt and reinstalled only to have the front seal pushed out after 5 min. run.
After removing ,I noticed the shaft has approx. 1/16-1/8 push/pull play. I am wondering if this is normal or had effect of walking the seal out. The other suspect would be excessive pump wear(not visually seen) that caused pressure to push out. Any information would be appreciated!
 

HT32BSX115

Supreme Mariner
Joined
Dec 8, 2005
Messages
10,083
Re: Velvet drive 71c

Howdy,


Welcome aboard!


Well, without reading through the service manual, I would expect the end play to be specified in there.

If you don't have one, maybe you should obtain one.

Here's a PDF of one. they're all over the internet.

http://www.marineryachts.com/borg_manual.pdf

Regards,


Rick
 

Capt Ken

Commander
Joined
Jul 30, 2002
Messages
2,269
Re: Velvet drive 71c

There isn't much if any shaft movement but it still isn't going to push the seal out. I would guess it didn't fit very tight in the pump housing.
 
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