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Bay Window Steve
Samba Member
Joined: July 13, 2006
Posts: 280
Location: Van Alstyne, Texas
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 Posted: Thu May 07, 2009 7:37 pm Post subject: Sputters, stalls, backfires, chugs, dies. |
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Drove the 70 (bus) tonight. Ran great all the way to dinner. Then when we left it sputtered, then died. Wouldnt restart. I thought it was out of gas, left, came back with gas. After three gallons, it fires right off, first time, everytime, but wont idle. Tried to drive it keeping my foot on the gas, went at first, but then started stalling, bucking, and backfiring. Foot down on the gas gets nothing. Pop pop fizz fizz, dies. Restarts, wont idle. Smells rich. Everything on the motor is new. Alternator, carb, distributor and all parts, fuel pump, everything. I think somethings wrong with the choke/carb. Took off the breather, and the flap in the carb is open all the time, not sure thats normal or not. Gonna work on it in the am, as its dark and I'm tired.
Ideas?
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51126
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Thu May 07, 2009 7:49 pm Post subject: |
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Fuel starvation, crap in the gas or flooding, hard to tell. Any black smoke? The backfires are more common with starvation. A look at the fuel filter and a flow and maybe even pressure test would be a good start. Next on my list would be a look in the carb for crap.
Edit: any vacuum hoses off?
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Bay Window Steve
Samba Member
Joined: July 13, 2006
Posts: 280
Location: Van Alstyne, Texas
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| Posted: Thu May 07, 2009 8:09 pm Post subject: |
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Interesting you mention the vaccum hose, I noticed the hose running to my breather is broken. Would that do it? I can rev it up and it sputters, but if I try to drive, it wont go. Sometimes when I start it it revs up real high until I tap the gas.
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'73 Transporter - Driver
'69 Deluxe
Member: WTKHABG
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TomWesty
Samba Member
Joined: November 23, 2007
Posts: 3482
Location: Wyoming,USA
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| Posted: Fri May 08, 2009 4:26 pm Post subject: |
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| Check all ignition before messing too much with your carb. Is your dizzy pretty close to the right static timing. Also are the points set right? |
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johnlynch47
Samba Member
Joined: July 17, 2008
Posts: 270
Location: Bradenton, Fl
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| Posted: Fri May 08, 2009 7:16 pm Post subject: |
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I beleive the Vacuum hose will do anything. Replace that joker and all suspicious ones or ALL OF THEM.
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