accelerator pump failure?

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wanderer
Posts: 45
Joined: Tue Feb 01, 2011 2:19 pm
Location: on the road.

accelerator pump failure?

Post by wanderer »

while trying to sync my carbs i noticed the front carb was no longer getting fuel, i have had this problem before, the accelerator pump came apart inside the carb, i replaced both with new parts from swiss army vehicles, one of which has failed again. is this a common occurrence, is it just poor design? I would hate to have to keep replacing these every year.
would like to know if anyone else has this problem, thanks

-JP
...and now the fun part.

1981 712 amb
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pcolette
United States of America
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Joined: Sun Dec 10, 2006 7:38 pm
Location: Southwest Wisconsin

Re: accelerator pump failure?

Post by pcolette »

This probably doesn't help much but I've never had one fail. I have had a couple wear somewhat so they no longer pump as well. Try reaching our to Jim LaGuardia for some ideas.
Paul C.
_________
'73 Swiss 710M
'89 Puch 230GE
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waterdog
Paraguay
Posts: 253
Joined: Tue Jul 05, 2011 7:35 pm
Location: Paraguay

Re: accelerator pump failure?

Post by waterdog »

what would be the main job of the accelerator pump in the carb ?? im having trouble on sudden-quick press on the gas pedal the truck DIES! , but accelerates fine on progressive press on the gas pedal .. i was thinking on the carbs pumps :roll: :roll:
1985 710MS
1985 712MK
1988 PAJERO CAMEL SPECIAL 042/150
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David Dunn
United States of America
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Joined: Wed Apr 14, 2004 7:08 pm
Location: Arcadia, CA

Re: accelerator pump failure?

Post by David Dunn »

waterdog wrote:what would be the main job of the accelerator pump in the carb ?? im having trouble on sudden-quick press on the gas pedal the truck DIES! , but accelerates fine on progressive press on the gas pedal .. i was thinking on the carbs pumps :roll: :roll:
And you now know 1st hand what the accelerator pump is for. :lol:

During quick acceleration, the carb's suction lags far behind the engines demand for fuel. The pump is a mechanical method to meet that demand
.
The Trojan Horse... the 1st Pinz used to covertly carry troops into battle .




ATL Pinzgauer XM 718K TUM(HD) 6x6 FFR (aka The Green Grail)
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waterdog
Paraguay
Posts: 253
Joined: Tue Jul 05, 2011 7:35 pm
Location: Paraguay

Re: accelerator pump failure?

Post by waterdog »

Thanks!!! I thought so,,, : :D
1985 710MS
1985 712MK
1988 PAJERO CAMEL SPECIAL 042/150
pinzinator
Posts: 917
Joined: Thu Jul 29, 2004 3:12 pm
Location: Indio, California

Re: accelerator pump failure?

Post by pinzinator »

I think that ethanol eats up the rubber plunger seal. That part is shown here- http://www.pinzgauer.com/showdetails.ph ... 122085120/
You only need the rubber part, I don't see that listed separately. Call them and see if they have just that part. Installation is easy.
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