I have an 8N side distributer tractor that ran perfect this spring, but now it starts up perfect but has no power. It is not missing, but sounds like a hissing noise near the manifold. I thought maybe something built a nest in tailpipe and ran a long pole as far up it as I could when it was running but nothing came out.Would it be possible that chipmunks stuffed the manifold up enough with acorns that it is partially blocked? Might have to pull the manifold. Got me stumped
- Thread starter John-MI
- Start date
Eagle Beagle
Member
Down here in Texas, fire ants crawled up to the weep hole on the exaust manifold on an SC Case. Filled # 3 cylinder half way up with dirt.
old
Well-known Member
- Location
- Camdenton Missouri
You could have a bad manifold or a sticking valve. To check the manifold take propane torch and wave it around the manifold with it running. DO N OT light the torch. If it sound different when you do that you have a manifold leak
Fall before last I was going to exercise my Super M before winter, probably hadn't ran in 9 months and wouldn't start, sounded like it wanted to but just didn't sound right, all the sudden it started belching stinkin, smoken feathers and a naked starling I think it was. Tractor is always in the shed so the bird must of came in when I had a door open
Steve@Advance
Well-known Member
Look at the position of the throttle. With the engine off dash lever to fast, the throttle shaft should be spring loaded to the full open position.
Try removing the air cleaner hose for a test run.
If there is a vacuum leak it will be idling way fast and would still rev up but lack power and probably need some choke to run.
If it is whistling when you open the throttle, but will not make power, that is a symptom of a restricted exhaust. Try taking the pipe loose from the manifold, see if it makes a difference. Probably have to actually put it under a load to tell, don't just go by the sound.
Try removing the air cleaner hose for a test run.
If there is a vacuum leak it will be idling way fast and would still rev up but lack power and probably need some choke to run.
If it is whistling when you open the throttle, but will not make power, that is a symptom of a restricted exhaust. Try taking the pipe loose from the manifold, see if it makes a difference. Probably have to actually put it under a load to tell, don't just go by the sound.
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