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Hard start m35

Adam Brice

Member
38
71
18
Location
Arizona
Hi guys.
So I just changed my fuel filters on the multifuel, and now I'm having issues starting. It wont start unless I bleed it out on top of the fuel block every time. Used to start right off on first crank. I'm guessing one of the o rings on secondary or final filter isn't sealing correctly now, and introducing air?
 

Floridianson

Well-known member
Steel Soldiers Supporter
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Interlachen Fl.
While anything is possible one would think anything after the booster pump would leak fuel being under 60 psi of pressure. I would look at primary fuel filter then even rubber fuel hose on in tank.
 

frank8003

In Memorial
In Memorial
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Ft. Lauderdale, Florida
Couldn’t hurt to verify that the fuel pump is working.
Just put a small gauge in that gauge hole, 1/8" NPT and you will always know if the pump is out puting pressure thru the in-tank hose to the system. That is a test gauge fitting hole in the output block as per the TM. A Deuce will start and run good with a tight system until you break it open to change the filters. Not good for the booster pump but it'll do it.
See photo, little gauge bottom right.my filter invention IMG_4242.JPG
 

Adam Brice

Member
38
71
18
Location
Arizona
Just put a small gauge in that gauge hole, 1/8" NPT and you will always know if the pump is out puting pressure thru the in-tank hose to the system. That is a test gauge fitting hole in the output block as per the TM. A Deuce will start and run good with a tight system until you break it open to change the filters. Not good for the booster pump but it'll do it.
See photo, little gauge bottom right.View attachment 847760
Yep. I know my pump is working, cause when I crack open the bleeder on top of the filter mount, fuel comes out pretty good when switch is activated. I will look into getting a fuel rated gauge though, as it would be nice to know available pressure.
 
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