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Silverghost500
Samba Member
Joined: August 01, 2018
Posts: 1089
Location: Atlanta, GA
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 Posted: Sun Oct 21, 2018 7:18 am Post subject: AFM and Fuel Tank Project |
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Well another batch of replacement parts came in, which meant I spent yet another Saturday working on Von Westy. Rebuild AFM, new fuel tank and reseal kit, as well as new fuel filter.
I took the easiest task first, which was replacing the AFM. I still had more than a half a tank of gas and decided to go test drive rather than getting more fuel containers to drain the tank. I'm glad I did! My "test drive" wound up being about 45 miles, and that AFM made a world of difference! Idle is stable, she revs without issue, and I was able to pass people with confidence for once! She's still slow going uphill, but at least she is still accelerating when going uphill rather than bogging down and losing RPMs.
Next project was one that I'd dreaded replacing the original gas tank. Pulling it out was not a problem. Looking at the insides it wasn't just original recipe rust, it was extra crispy! No wonder the fuel pump was screaming trying to pull fuel through all that junk!
Getting the new fuel tank in was a multi-hour long ordeal for me. Anyone getting a new tank check the tank vent metal tubes on the sides. Mine were longer, and the ends were protruding outboard of the tank. That caused it to get hung up on some other things inside the van. I took a rubber mallet and brought them more inboard as well as getting them to lay closer to the tank's profile.
I'd ordered one of the reseal kits to do this, and I've got to say I was a bit disappointed. My personal opinion is that it's a $50 kit, not $100. Also got short changed on the amount of vent hose and wound up using some line I had. I also took the time to pull the fuel pump off, flush it out with some fresh fuel and put it back on the van the way it should've been.
Once everything was buttoned back up I put about 2 gallons in. Nothing leaked out. I drove it to the nearest gas station and filled up. No vapors, no spills!
Today I'm super sore. The tank replacement was a full body workout. I had my van up on ramps which helped tremendously. Today I plan to go out and enjoy the day, maybe go up to the property and "day camp."
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1986 Volkswagen Vanagon Westfalia "Von Westy"
Honda K24A converversion-Road Testing Phase
3-Speed Automatic
Von Westy YouTube Channel
https://www.youtube.com/channel/UCbhyZYxJEQrUuLnMbLleeIA |
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calo1956
Samba Member
Joined: April 18, 2011
Posts: 701
Location: long Island new york
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| Posted: Sun Oct 21, 2018 7:32 am Post subject: Re: AFM and Fuel Tank Project |
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Awesome, i did my tank as well, but at the time, 35 yrs old the seams on the outside were rusted and and splitting, but the inside was surprisingly pristine! I have always wondered about a rebuilt AFM, i have tinkered with mine, and she runs better than ever, just no stable idle till its warmed up. On the fuel tank, other than the cross over pipe on the top, i just made up all my own vent lines, even the short metal ones going to the expansion tanks, made those out of steel brake line. Nice job, and now you have me thinking about the AMF again!
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Enjoy the ride....
72 bug
80 westfalia |
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Silverghost500
Samba Member
Joined: August 01, 2018
Posts: 1089
Location: Atlanta, GA
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| Posted: Sun Oct 21, 2018 8:19 am Post subject: Re: AFM and Fuel Tank Project |
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@calo1956, I've also replaced the throttle body with one of GoWesty's new production units. While the replacement throttle body did help, replacing the AFM has been the single most immediate return on investment to date.
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1986 Volkswagen Vanagon Westfalia "Von Westy"
Honda K24A converversion-Road Testing Phase
3-Speed Automatic
Von Westy YouTube Channel
https://www.youtube.com/channel/UCbhyZYxJEQrUuLnMbLleeIA |
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