Thanks Max!!

Capt Kirk

Capt Kirk

Well-known member
I sent my Stromberg 97 to Max for a rebuild and what I got back is almost too nice to use!

The car seemed to be running alright prior to sending the carb in for rebuild but there were a few quirky little things and I wanted to eliminate the carb as the culprit...it was time for a "freshening up" anyway.

According to the invoice, I had a leaky float, fuel inlet needed repair and needed some heilcoil work. The invoice also noted that this carb has "oversize jet plugs". I know what the jet plugs are but don't know the significance of them being oversize.

Thanks for the great work Max
 

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The main jets effect the fuel mixture when the engine RPM is slightly above idle all the way to slightly below full throttle. At idle the fuel mixture is effected through the two idle mixture screws located on the cast iron carburetor base. At full throttle the power valve enriches the fuel mixture. When ever increasing RPM the accelerator pump also temporally enriches fuel mixture. Slightly over size main jets waste fuel and cause the spark plugs to burn improperly and can lead to plug fouling and short life. Standard size 97 main jets are .045
 
Maybe meant the plugs in the fuel bowl through which you get access to the main jets. Perhaps the plugs got striped some time in the past; but I have never heard of oversize for that part. If that is the actual case, it would be of no consequence in performance of the carb.
 
drolston said:
Maybe meant the plugs in the fuel bowl through which you get access to the main jets. Perhaps the plugs got striped some time in the past; but I have never heard of oversize for that part. If that is the actual case, it would be of no consequence in performance of the carb.
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That's what I was thinking as well. Sometimes those plugs leak no matter how much you tighten them, and then they become prone to stripped threads. I believe Charlie and Uncle Max face the castings where those plugs seat, plus use special plastic material gaskets/seals that prevent leakage.

ps...the carbs that Uncle Max and Charlie ny rebuild are ike a work of art when finished. I can totally understand the feeling of being too nice to use.
 
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I'm not sure what a normal 97 looks like but the two outer brass plugs on mine have a larger head diameter than the center one. I assumed the same thing that drolston and JM mentioned.
Max mentioned that the carb is "flow tested"...does that mean that it's a bolt on and go ordeal or will I need to make some adjustments?
 
drolston said:
Maybe meant the plugs in the fuel bowl through which you get access to the main jets. Perhaps the plugs got striped some time in the past; but I have never heard of oversize for that part. If that is the actual case, it would be of no consequence in performance of the carb.
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Exactly! The jet PLUGs - not the jets themselves - were oversize, as well as the fuel inlet and 4 out of 5 of the airhorn screws were stripped. People with hands the size of live chickens need to stay away from these carbs!
 
uncle max said:
Exactly! The jet PLUGs - not the jets themselves - were oversize, as well as the fuel inlet and 4 out of 5 of the airhorn screws were stripped. People with hands the size of live chickens need to stay away from these carbs!
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Max, I can say that my hand's aren't petite but it must have been someone else in that carb's history that took a cheater bar to the air horn screws :)

The carb looks awesome and I'm sure it will work as good as it looks. I do have a question. You mentioned that the float had a leak...wouldn't that sink the float and cause problems or was the leak above the fuel level line?
 
....."people with hands the size of live chickens"...... now that's funny.!!!!..... I don't care who you are!!......... Mark
 
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