Leaking Fuel pump

[deminin]

I have an older model Coleman Powermate 5000W Generator with a B&S 10 HP engine. The fuel pump leaks. I searched the Internet, and it looks like the old fuel pump has been replaced with a newer part number. I ordered the new style pump, and IT Does Not fit...no matter what I try. The PN of this new pump is a B&S 799056.

The Engine is a Model 19E412-0107-01 with a code of 9610071A. This engine does not show on any parts lists I have found...even though the generator is only about 15 years old.

If anyone has any info on this older model engine, or its fuel pump PN, I would appreciate the info. I carefully took the old pump apart, and ran a small bead of gasket sealer around all the edges of the 3 main parts, and the 2 diaphragms, and will let it cure overnight, then try the old pump again in the morning.

Thanks in advance,
Don M.

 

[reynoldston]

Just looks to be a universal low presure small engine fuel pump. You might have to modify the lines to make the new fuel pump fit.

 

[deminin]

Just looks to be a universal low presure small engine fuel pump. You might have to modify the lines to make the new fuel pump fit.

I did some more checking, and on EBAY, I found several sellers offering rebuild kits for this pump....which appears to be a B&S #393397. I didn't see any damage to the pump when I took it apart, so I'll see how my "sealant" job does in the morning.

The new style pump simply does not fit, and about the only way I might be able to get it to work would be to fabricate some sort of bracket to install it. I may even try to run the generator without the pump, as with the tank sitting above the engine, gravity feed should supply sufficient fuel. At least I've found a source for rebuild kits.

 

[mechanic mark]

Results see parts page 11 item 26 fuel pump part number 692026.

Amazon.com : Briggs & Stratton 799056 Fuel Pump Replaces 692026/496257/799056 : Lawn Mower Tune Up Kits : Patio, Lawn & Garden

 

[reynoldston]

I did some more checking, and on EBAY, I found several sellers offering rebuild kits for this pump....which appears to be a B&S #393397. I didn't see any damage to the pump when I took it apart, so I'll see how my "sealant" job does in the morning.

The new style pump simply does not fit, and about the only way I might be able to get it to work would be to fabricate some sort of bracket to install it. I may even try to run the generator without the pump, as with the tank sitting above the engine, gravity feed should supply sufficient fuel. At least I've found a source for rebuild kits.

I guess without seeing what you have I have no idea. All you should need is a fuel flow.

 

[deminin]

Results see parts page 11 item 26 fuel pump part number 692026.

Amazon.com : Briggs & Stratton 799056 Fuel Pump Replaces 692026/496257/799056 : Lawn Mower Tune Up Kits : Patio, Lawn & Garden

Yup, 799056 is the "New" B&S PN for the old style (no longer available) fuel pump. Unfortunately, it is nowhere near the physical specs of the old pump. The old pump is a fairly small rectangular unit that bolts to the rewind housing and tucks in neatly behind the carb. This new "replacement" pump is a big round fat unit that cannot be mounted in the same place. Every parts breakdown I have seen shows a picture of the Old Style unit, but when you look at the "new" style, the differences become apparent. Every parts breakdown, including the one you sent, shows the pump as item #387, but the new pump is completely different, physically. Everyone supplies a diaphragm rebuild kit, but no one seems to have a complete pump. The PN for the original part...as shown in all these parts diagrams is 393397....which no one seems to have.

I'm going to get this thing working and figured out...and when I do, I am going to contact B&S and point out the problem to them.

 

[Mad Mackie]

The original fuel pump was discontinued as it was not EPA approved and Briggs will tell you this. Not many new fuel pumps are EPA approved and this is why this pump type is installed on many different manufacturers engines although under the manufacturers own part numbers.
Your generator engine was built in 1996 and many changes have happened since then.

 

[deminin]

Success! I took the old pump apart carefully, and applied a small amount of silicone gasket seal to all the mating surfaces....then, let it dry overnight. This morning, I put the old pump back in, and fired up the generator and let it run for about 30 minutes, with No Leaks.

I talked to B&S, and it seems that this Bogus Replacement fuel pump requires "mounting modification" to be used on engines built before 2002...Yeah..No Chit! I guess that is all part of the corporate Planned Obsolescence. As for EPA considerations, the Old style pump is probably less likely to pollute than this new unit. The old pump is sealed, so no fuel should escape....whereas, the new style pump has a wire mess "breather", that probably seeps some gas while running, and would probably leak out any fuel left in the pump at shutdown, unless the tank valve is shut off...so much for the EPA.

 

[reynoldston]

silicone gasket sealant and gas doesn't mix. I just hope you good luck on that. :thumbsup:

 

[KrashnKraka]

silicone gasket sealant and gas doesn't mix. I just hope you good luck on that. :thumbsup:

..."silicone" anywhere, of ANY grade, in any engine, is not good practice. PERIOD.
Read my thread to illustrate one failing of such foible:
http://www.lawnmowerforum.com/small...a-fr541v-top-end-bobbins-rocker-assembly.html

For workshops it is in the product name - Silly (method) Cone (coneheads use it) :thumbdown:

Even it bathrooms/washrooms it fails and there is
the intended use for the base product!!!

KK