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1977 Highboy

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Old Mar 1, 2022 | 12:27 PM
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Brickhi's Avatar
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Question 1977 Highboy

Hello all. I just got my truck back from this ( so called shop ) and it has been setting there for about 10 years. I know the gas is shot............. I don't have the funds to replace all the lines and fuel pump. On a Volvo 240 I have I let it set for about 7 years and was told by a senior member of the Volvo club to get 5 gal's of premium non ethanol fuel and jump it until starts............. it worked! my question is will that work on my highboy?
Thanks for any input in advance.
Ed
 
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Old Mar 1, 2022 | 01:00 PM
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Originally Posted by Brickhi
Hello all. I just got my truck back from this ( so called shop ) and it has been setting there for about 10 years. I know the gas is shot............. I don't have the funds to replace all the lines and fuel pump. On a Volvo 240 I have I let it set for about 7 years and was told by a senior member of the Volvo club to get 5 gal's of premium non ethanol fuel and jump it until starts............. it worked! my question is will that work on my highboy?
Thanks for any input in advance.
Ed
Can't recall if the 240 was injected or carb'd. But I'd say it might work but more than likely the carb is so gunked up it won't very well if at all.
You don't need premium like the volvo, regular will be just fine.
You should put a capful or more of marvels mystery oil (or your choice of a light oil) in each plug hole first, I would.
Maybe even crank it a few times with the plugs out to get some oil moving. Hopefully you changed the oil before doing any of this.
 
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Old Mar 1, 2022 | 02:14 PM
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You mean bypass the tank and feed the fuel pump from new gas in a can? Or dump the new gas in tank as-is? Yes to former but No DO NOT do the latter. You are asking for trouble. Drain the tank by removing it and dumping/flushing. Blow the line out between tank and fuel pump. Install new filter then put fresh gas in it and hope carb is not gunked up. Highboys had a filter under the floor below tank. I'd also add an inline filter right before carb until you run it for awhile.
If it was me I'd open top of carb and see what it looks like. Sometimes they are clean and dry but other times they are plagued with nastiness.
 
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Old Mar 1, 2022 | 04:19 PM
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If you want more to do alot more work, get new high grade headaches and learn how to do "carb rebuild 101" at least 3 or 4 times, then run that old gas. Other wise x2 drop the tank clean it out, air blow and fresh gas flush all the lines. What ever nasty is in the tank will go right in the carb jets.




 
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