165 stalls when hot

[25'k&c]

165 runs good cold will run when hot if it is reved up over 2000rpm but its a little rough just did a tune up new points condenser plugs cap rotor swapped the carb off my other motor still seems the same changed the water separater and fuel filters really hard to start again when hot

 

[Don S]

Re: 165 stalls when hot

Is this a 4 cylinder or 6 cylinder? Year?

 

[maproy99]

Re: 165 stalls when hot

Sounds like a cooling system problem possibly. When was the last time you replaced your impeller and how old is your thermostat? The rough running may be caused by gas vaporizing in a spot where it shouldn't be.

 

[CaptainMak]

Re: 165 stalls when hot

Thought I saw this post before , though worded differently.

Anyway, I had the same thing with my 165 Inline 6. Turned out to be a gas and choke problem. Put in high-octane gasoline and adjusted the choke correctly, works like a charm now.

 

[25'k&c]

Re: 165 stalls when hot

Is this a 4 cylinder or 6 cylinder? Year?

1977 6cyl i think i found the problem I have 2 cyls with low compression new motor maybe

 

[Don S]

Re: 165 stalls when hot

1977 6cyl i think i found the problem I have 2 cyls with low compression new motor maybe

Hard to say why, but I would suggest a leakdown test to find out where the problem is. Could be bad valves and not the pistons/rings.