Hey Bear, a Holley question
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Cargo Master
Joined: Apr 2004
Posts: 2,574
Likes: 4
From: Golden, CO
Hey Bear, a Holley question
OK, it's FE related because my only carbed engines are FEs, and I don't see Bear 45/70 post in the carb forum.
Anyway, how long has Holley been putting plastic bushings on the 4160 secondary shafts? I have not been through the one that came on my truck for at least 12 years, now I'm going through the junkyard carbs and seeing things I don't remember from the mid '70s carb.
I'm sure I'll be asking more useless trivia questions as this project continues. What brand of chem-dip is everyone using? I have a 6 to 8 year old can of Berryman's, just bought a can of Gunk brand; totally different. Is it the difference between brands, or have all brands been re-formulated?
Anyway, how long has Holley been putting plastic bushings on the 4160 secondary shafts? I have not been through the one that came on my truck for at least 12 years, now I'm going through the junkyard carbs and seeing things I don't remember from the mid '70s carb.
I'm sure I'll be asking more useless trivia questions as this project continues. What brand of chem-dip is everyone using? I have a 6 to 8 year old can of Berryman's, just bought a can of Gunk brand; totally different. Is it the difference between brands, or have all brands been re-formulated?
Logistics Pro
Joined: Oct 2005
Posts: 3,785
Likes: 4
From: Mddl A MexCans
Carb dip aint carb dip no more, at least here in Cali. It's not the dip I recall from highschool. The one that actually cleaned stuff off just soaking the carb. Dont know what the difference is but if youhave a can of the real stuff.. have a look at the formula listed on the can. Would be nice to know what the old stuff had vs new.
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Cargo Master
Joined: Apr 2004
Posts: 2,574
Likes: 4
From: Golden, CO
I started on the old carb tonight, plastic bushings were there. The carb has a D5** engineering number.
I looked over the new can briefly: "Environmentally friendly". The old stuff still has some kick, makes the Nitrile gloves pucker in mere seconds. LOL Between the two I'm getting acceptable results.
I looked over the new can briefly: "Environmentally friendly". The old stuff still has some kick, makes the Nitrile gloves pucker in mere seconds. LOL Between the two I'm getting acceptable results.
Post Fiend
Joined: Mar 2004
Posts: 6,056
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From: Union, Washington
The EPA mandated changes to carb cleaners and every other solvent we used to protect us from ourselves, I was aware I had asked them to protect me? It was in the seventies when Holley when to the plastic bushings on throttle shafts, but I can't tell you the exact year. Before the plastic bushings, when the carb got worn shaft bores it was a major hassle to either bush them or O-ring them to stop the air leaks and sticking throttles.
