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Before I Kill Again... In Reverse
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msinabottle
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PostPosted: Sun Sep 02, 2018 7:55 pm    Post subject: Before I Kill Again... In Reverse Reply with quote

Backing Winston into his garage cave is always fun... Slight incline up the driveway, the need to be careful in a crowded one-car garage...

I have tennis balls on ropes to line him up, nylon rods to clatter and say STOP... But this year, I just keep killing his engine.

At high-ish revs, he's fine, and bounds backward like a jackrabbit. But at low, careful revs, he dies, dies, dies, dies. At least he's got a big, well-charged, starter battery. I called a car radio show with a knowledgeable VW guy. He, also, has problems.

I am grateful for and open to suggestions, causes, adjustments, and anatomically and/or mechanically possible solutions.

Shocked

Help.

Best!
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'Winston,' '84 1.9 WBX Westy
Vanagon Poet Laureate: "I have suffered in
many ways, but never, never, never in silence."
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shagginwagon83
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PostPosted: Sun Sep 02, 2018 8:04 pm    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

I was having a similar issue. I played around with my idle adjustment screw and moved my air flow meter needle onto a different carbon track.
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25 years old, 35 year old van
1983.5 Westy 1.9L "Jo Ann"
Fox Shocks, 1.5" lift, 16" CLK320 (01-03) Rims, 150aH aux power
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bobbyblack
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PostPosted: Sun Sep 02, 2018 8:45 pm    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

Been to a gas station lately? Could be as simple as bad gas. Locally, we had a tanker come in and drop its fill into our highest trafficked gas station, it had diesel contamination. A bit of water can act that way too.

But, ya, the more usual suspects are simpler. Like, say, you forgot to plug in your AFM. Or a vacuum line is busted or otherwise leaking. You know the drill, just happened to be at a frustrating time for you... Sleep on it. You'll dream through the fix. When the time comes, you'll say "damn, that's too simple!!!"

-bobby
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MarkWard
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PostPosted: Mon Sep 03, 2018 5:25 am    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

Stretch diagnosis. Is it the same regardless of fuel tank level? Is it better with a full tank vs a low tank?
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msinabottle
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PostPosted: Tue Sep 04, 2018 7:08 pm    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

Thank you, very much, for the replies! I have been thinking them over.

It has been quite some time since Blazer adjusted Winston's AFM. His idle does seem a bit low at times.

The problem did seem to improve after I replaced Winston's plastic cube fuel filter and ran some Techron through him... Possibly, as it's still bad, gunk is still working through his system. I run him on nothing but Conoco Top Tier Regular with MMO in it, and I put Sea Foam in his last tank of the season.

Prompted by a guilty conscience, I look up when I installed the big Bosch METAL post-pump fuel filter into Winston.

https://pre00.deviantart.net/63e3/th/pre/i/2018/241/f/d/bat_tat_by_urbangerbils-dclh13r.jpg

Hmmm... Over 11 years ago. Would anyone informed tell me if that's as too long an interval as it seems to me?

Shocked

I would say that the problem is worse when he's below a half-tank. Due to... issues... getting all the connections tight on an RMW steel coolant tank and a Van Cafe metal bleeder junction, I have spent a LOT of time looking over that engine. It idles and runs very well EXCEPT in this case.

Anybody have any shifting or accelerator techniques?

Best!
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'Winston,' '84 1.9 WBX Westy
Vanagon Poet Laureate: "I have suffered in
many ways, but never, never, never in silence."
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raoul mitgong
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PostPosted: Tue Sep 04, 2018 7:59 pm    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

Canít seem to post a gif...

https://goo.gl/images/SrbCbD
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MarkWard
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PostPosted: Wed Sep 05, 2018 7:14 am    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

Fuel filter service would be about 15000 miles. I asked about the fuel level because the vanagon fuel tank has an interesting internal plumbing arrangement that does fail. Externally it looks like the in and out fittings are at the edge of the tank, but someone posted some pictures of a tank cut open. You can see those fittings are plumbed to the center of the tank.

With the nose pointed downhill, the fuel runs to the front of the tank. The internal plumbing keeps the fuel pickup submerged. When it fails, the suction side could be getting air. It's a stretch diagnosis.

I rigged a 1 gallon gas can under the van I am working on now so that I could move it under its own power. The fuel tank is out of it at the moment. Good luck getting it sorted.
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Dampcamper
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PostPosted: Wed Sep 05, 2018 12:04 pm    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

msinabottle wrote:



Anybody have any shifting or accelerator techniques?



Friend of mine with a Ferrari burns rubber every time getting up his steep driveway. Neighbor asks him who he's trying to impress?
His answer is "Nobody, but tires are cheaper than clutches". Not sure if this technique would work in a Vanagon?
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crukab
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PostPosted: Wed Sep 05, 2018 12:20 pm    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

Dampcamper wrote:
msinabottle wrote:



Anybody have any shifting or accelerator techniques?



Friend of mine with a Ferrari burns rubber every time getting up his steep driveway. Neighbor asks him who he's trying to impress?
His answer is "Nobody, but tires are cheaper than clutches". Not sure if this technique would work in a Vanagon?


Yep, I have the same problem w/ my Ferrari too........ Embarassed Laughing
My Doka has that "breaking the stick" feeling when at low speeds, you step on it hard and pops and leaps foward.
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My Pops:
http://www.thesamba.com/vw/forum/viewtopic.php?t=604100&highlight=
I know you will always be with me, rest in peace with no more pain. 8/13/14.....

In the yard right now:
'65 Bus/Panel/camper W/T
'66 Singlecab
'82 Rabbit Truck Diesel from CALI Smile
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jberger
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PostPosted: Wed Sep 05, 2018 3:30 pm    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

Not sure I follow... Just like parallel parking up a hill, milk the clutch. Milking a clutch doesn't damage it if done correctly. Enough revs and pressure to inch the van along. The 2wd reverse gear is not short.. trying to idle up a sharp enough grade with a fully engaged clutch is just not possible.

J
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calo1956
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PostPosted: Wed Sep 05, 2018 3:47 pm    Post subject: Re: Before I Kill Again... In Reverse Reply with quote

I don't have a answer to your problem. I just wonder why you go through all that hassle of backing in. I would rather have my exhaust blowing out of my garage then into it, but thats just me. Hope you find the issue.
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