1950 mc low power??

monzanick · Post by **monzanick** » Sat Dec 29, 2012 8:07 pm

Overall my mc is running good. only Issue I got so far is when i put it in 4th it either doesn't move or "lugs" / that is it moves a few feet then stalls out. Any other gear its pretty sweet. pops right along without any issues.

Any ideas????

Post by **Lavoy** » Sat Dec 29, 2012 9:12 pm

Make sure timing and carb settings are okay first.
Lavoy

mapaduke@yahoo.com · Post by **mapaduke@yahoo.com** » Sun Dec 30, 2012 8:30 am

May want to check the compression?

rszkwcz · Post by **rszkwcz** » Sun Dec 30, 2012 8:42 am

I have a 50 mc and i also have the same problem and i know it is a compression problem for me

Ray III · Post by **Ray III** » Thu Jan 03, 2013 6:56 am

If it doesn't charge and the battery is very weak, you can also lose power from poor spark.

gregjo1948 · Post by **gregjo1948** » Thu Jan 03, 2013 9:10 am

Is your governor working OK ? gregjo1948

monzanick · Post by **monzanick** » Thu Jan 03, 2013 8:02 pm

Looking into it, just got the charging system straightened out fully last month. it still lugs/dies in 4th. the gov linkages appear to work smoothly and I have no other problems in any other gear. I gotta remember to bring my compression tester home from work to see what that is. Any ideas of what the cranking/running compression should be for these 'ol girls???

Thanks Alot! keep on crawling....

monzanick · Post by **monzanick** » Thu Jan 03, 2013 8:10 pm

Sorry forgot to post that b4

DukeofDeere · Post by **DukeofDeere** » Wed Jan 09, 2013 9:28 am

compression should be 70 psi+
More important are they close to equal.

Duke

Post by **Lavoy** » Wed Jan 09, 2013 9:32 am

MC should be in the 110PSI range if good shape I think.
Lavoy

DukeofDeere · Post by **DukeofDeere** » Wed Jan 09, 2013 1:35 pm

Yes 110 psi is ideal.
Runable at less.

Duke

soffiler · Post by **soffiler** » Thu Jan 10, 2013 8:01 am

Perhaps worth mentioning... when you do a compression test, make sure there is no obstruction in the intake - choke is off, throttle butterfly fully open. The engine needs to breathe air as freely as possible to get a good compression measurement. Battery should be good and strong. Sometimes I put mine on the charger before the test and also give it a boost between runs. (more of an issue when there are more cylinders and/or an older battery)

monzanick · Post by **monzanick** » Fri Jan 11, 2013 2:55 pm

#1 cylinder pops 75psi constantly. #2 however 50 psi

shucks. that i would believe is why i haven't any power in 4th gear.

well, now thats identified, on to the next thing..

soffiler · Post by **soffiler** » Fri Jan 11, 2013 2:58 pm

monzanick wrote:#1 cylinder pops 75psi constantly. #2 however 50 psi

shucks. that i would believe is why i haven't any power in 4th gear.

well, now thats identified, on to the next thing..

Rings or valves? Did you throw some motor oil into the cylinders and repeat the test? (temporarily seals the rings and brings the numbers up IF the problem is rings)

NNAATZ · Post by **NNAATZ** » Fri Jan 11, 2013 3:24 pm

try some compressed air to make sure the valves are seating too.

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1950 mc low power??

1950 mc low power??

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