M151a1 with 73 power pack wont rev when hot

1959 - 1978, M151, M151A1, M151A2, Technical questions and discussions, regarding anything related to the M151.
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uh1pilot
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M151a1 with 73 power pack wont rev when hot

Post by uh1pilot » Wed Jun 15, 2022 6:24 pm

As stated this is a 1973 AM General power pack in a 1967 a1. it starts great, it restarts great. but when it gets hot it looses power and will not rev.

It has a new carb, a new fuel pump, new filter, new plugs, new cap rotor, electronic module, and new coil. the spark noise eliminator capacitor is old.

When it runs, it runs beautifully smooth with no issues.

I am not confident that small capacitor will solve this.

Anybody have any ideas or experiance with this?


hambone
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Re: M151a1 with 73 power pack wont rev when hot

Post by hambone » Wed Jun 15, 2022 6:49 pm

Is it a shiny Chinese coil? They have a bad rep., the capacitor can be bypassed.

Rickf
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Re: M151a1 with 73 power pack wont rev when hot

Post by Rickf » Thu Jun 16, 2022 4:51 am

Have you checked your valve settings?
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone


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