My Carry got difficult to start some time ago. I searched and thought it may be the valves, after carb cleaning did nothing for the issue. I adjusted the valves to .007 and it started right up and run fine. Over time, several hundred starts, the vehicle started getting more difficult to start. Soon, I was back to where I once was. Today, I pulled the valve cover and the valves were tight again. I readjusted and it started fine. What is going on, and how do I fix it? I'm going to go get a compression gauge now and check the compression. Just wondering if it didn't get dusted and wear things internally.
Well now it starts and runs. I decided to do a compression check. I have 115 - 115- 126. I know not perfect, but not sure how that would effect things. Anyone ever seen one where the valves just get tight on all 3 cylinders to the point it won't hardly start? I just need a nudge in the right direction, I'm stumped.
I had one do that to me one time and I had a buddy that's a better mechanic than I am re-set them and it's been fine every since.
Lol, that may be an option. My niece's husband owns a M/C repair shop and he did them the first time. He is very experienced, but hopefully my job will last longer.
What are people's thoughts on the compression numbers, 115 - 115 - 126? I've never done a compression test before. Going to try a leak-down test tomorrow, see what it may show.
I believe that popular opinion is 10% variance so I think you're close enough.I've had them run pretty well with bigger differences than you have.The bigger concern would be that they are all a little low as I think the book calls for around 150 plus but It should run fine if everything else is ok. These little engines are nearly bullet proof and very forgiving as long as the vacuum lines are good.
Funny thing. I just bought a Carry a few weeks ago that had 0 compression on one cylinder and like 30 on another. Was thinking head gasket but it ended up just being valves had come out of adjustment!
It's already getting hard to start again. I think I need a new or machined head, and since I'm losing compression through the crankcase on the leak-down test, I probably should do new rings. What is the best procedure to get this done? Can it be done without pulling the motor from the truck? I'm guessing not. Any advise?
I've never been inside a motor, so this should be good. Where should I send my head to have it reconditioned? Any other advise?
Anybody care to run me through a "checklist" for dropping the motor? How do you keep all the vacuum lines straight? I'm thinking about using a label maker and make a bunch of sets of numbers. Put a matching number on the hose, and the barb where it came off. What do you think?
