wrgflyfish
New User
I've gotten so much just reading these forums for years and never needed to post. Now I need to. I have a TO30. Last year it started not working right for several reasons. At that time I switched it to electronic ignition and re-did the 12 volt conversion meaning new alternator, switch, coil, and starter. It started right up and I thought great! Well, not so great this spring. This spring when I started her I started getting oil blowing back from the oil bath air filter. Researched things here and decided to remove the head and get the valves redone. They were really bad...the machine shop thought they might be originals. Got that back and did a thorough cleaning of the pistons, valve cover breather, rocker arms...basically anything that was removed got cleaned up. I put it all back together including adjusting the valves to .013 per my manual. Set the static timing to 6 from tdc and it started right up!!! It was sounding great. I thought I might have to adjust the governor since it was removed but it went to idle and back up smooth and nice. I checked the timing with a timing light to make sure it stayed at 6 at idle. Time to actually use it. I hooked up the brush hog and went to the pasture. I got maybe 100 yards in and the oil started coming out the breather again. Under load it just comes out almost constantly. Without load on the engine it runs very well. I read through https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=ferg&th=111896. I don't have a hole in my oil bath. A note about the valve job (it shouldn't matter but I'm going to mention it). The shop didn't put on oem valves. The exhaust valves don't have the hole in the top to put the existing lash caps. I did put the intake valve lash caps on and left the exhaust valves without. That would be a long term wear issue not a current running issue I think.
Another thing that shouldn't cause this I mention it...the muffler is not sealed well against the exhaust manifold. The angle of it makes it not seal well so there is some work I need to do there but again I don't think that could cause this.
In that thread there are several things mentioned. One is a sticky valve...is that possible if I just had the valves redone (valves, springs, guides)? I cleaned up the rocker arm and lubed it well. I would think the new springs would over come a rocker unless it was very noticeably stiff.
Another is advanced timing. How would I check that? The engine runs well at fast speeds and at slow unless it is under load. Can it be a timing issue if that is the case? I can upload a video of it running if that is any use.
Thanks!
Wendell
Another thing that shouldn't cause this I mention it...the muffler is not sealed well against the exhaust manifold. The angle of it makes it not seal well so there is some work I need to do there but again I don't think that could cause this.
In that thread there are several things mentioned. One is a sticky valve...is that possible if I just had the valves redone (valves, springs, guides)? I cleaned up the rocker arm and lubed it well. I would think the new springs would over come a rocker unless it was very noticeably stiff.
Another is advanced timing. How would I check that? The engine runs well at fast speeds and at slow unless it is under load. Can it be a timing issue if that is the case? I can upload a video of it running if that is any use.
Thanks!
Wendell