mechanical fuel pump damage

[dvx216]

So has anyone seen a stock 1988 350 merc. knock a hole in the top of its mechanical fuel pump?It looks like the pump came unglued.A 1/4" slotted hole on the very top of the pump the motor has 640 hours on it. The only reason I found it was it leaked a lot of oil.The motor ran fine with the damaged pump. I've been around small block chevys for along time never seen a pump fail like this.

 

[hottoddie]

Was it original pump? The housings are only cast aluminum and not very strong. I believe the upper housing encloses the return spring which is quite strong and may have gotten the best of the housing. New pump and all should be fine.

 

[dvx216]

As far as I can tell it was the original. Replaced it with a defective telaflex sierra pump that they gave me my money back then installed a Carter marine pump and so far I've been good to go.

 

[hottoddie]

Sierra had a run of bad small block pumps last year. I know 1 guy at our yacht that went thru 4 bad pumps before getting a good one.

 

[dvx216]

Summit racing is local so the second time around I bought a Carter marine pump from them .Saved shipping and the pump cost $95.00 The only thing that I had to do was swap the lower half off the original pump so the tubing lined up correctly.I'm not sure who mercruiser uses for fuel pumps but I figured Carter was a good make of pump.

 

[CV-23]

I put a Quicksilver pump on my '88 CV-23 last year when it just stopped. I'm not a fan of Sierra parts so I always use Mercury or Quicksilver, Mike.