any advice on a FASS
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=137148
Printed Date: 08 Nov 2025 at 3:37pm
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Topic: any advice on a FASS
Posted By: darrel in ND
Subject: any advice on a FASS
Date Posted: 07 Apr 2017 at 8:25pm
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My 8550 has some fuel delivery issues, and I am thinking about putting a FASS (company name, stands for "fuel air separation system") on it. I've found em on the net, anywhere from 500 to 700 bucks, depending on application. But they're not too clear about what model I should get for my 8550. Maybe it's too old. Is anyone on here a dealer for them, or know a good dealer. Anyone have one on anything allis....? Any experience with them......? Jorstad Brothers (from on the forum here) has said he uses them on diesel pickups with good luck. Thanks, Darrel
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Replies:
Posted By: injpumpEd
Date Posted: 08 Apr 2017 at 8:07am
I can get them, but I don't think I'd put one on an 8550 that is basically stock. Just an electric feed pump could help get the fuel to the bosch feed pump on the side of the injection pump. let that one do the feeding to the pump still. Why complicate it. But a good electric pump to get the fuel from the tanks to the feed pump would be a good thing. I sell air dog raptor pumps that work good for this. It is just the pump with -8 oring fittings, no filters. If you're wanting the FASS to fix fuel supply issues on the tractor, I'd prefer you fix the problems, rather than trying to bandaid them with the FASS. Great on pickups, and trucks, especially when juiced up lol!
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210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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Posted By: darrel in ND
Date Posted: 08 Apr 2017 at 8:31am
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Thanks Ed. I'll probably give you a call on Monday morning. Darrel
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