I need a new fuel pump

Andy J

Seaman
Joined
Jul 1, 2018
Messages
57
They are constructed differently for a reason. The marine pump has an extra diaphragm to keep fuel from dumping into the bilge when the first one fails. An auto one doesn't so the gas/fumes have a chance to flow out into the bilge and ignite and blow up your boat and kill everyone on board. When a marine pump fails, the gas is siphoned up through the carb and floods the engine so you can't continue to run it like that.

This is a serious life and safety issue that no amount of cost saving is worth.

I am new to boating and have the same problem finding a replacement and don't want to create a bomb..... I purchased my first boat 5 weeks ago so still learning alot, the previous owner installed a electric pump to bypass the failed mechanical one.
My engine is a OMC 302amftc model with a Carter pump M60032.

Here is a pump claimed to be a marine pump but has a weep hole where I assume gas would come out in case of a diaphragm failure.

Carter M60032.jpg

My current pump has a fitting instead of a weep hole which had a line attached at one time. I assume this line would go back to the carb as a saftey in cause of a failure to prevent filling the engine compartment with fuel. Any suggestions apprecaited.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,487
you assume correct. BTW, iBoats sells pumps.
 

Andy J

Seaman
Joined
Jul 1, 2018
Messages
57
A lot of people sell them, the photo I attached claimed to be a marine pump but I don't think it is because of the weep hole.. Am I thinking correct?

I have been buying some parts from IBoats when possible. It's hard to find the correct parts using the search a exploded views sometime. I normally call them to verify I have the correct parts.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,148
Ayuh,.... There's nothin' wrong with runnin' the electric pump, so long as it's wired to run safely, with a cut-off switch,.....
 

Andy J

Seaman
Joined
Jul 1, 2018
Messages
57
Hey Bondo,

I read several post here that explained how to add the safety circuit for a electric pump. I just want to keep it original and simple so going back to the original mechanical pump.
To keep the electric fuel pump I will need to add a pressure regulator as my old Rochester is sensitive to psi otherwise will un-seat the needle.
 
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