Could it just be that you have the clutch rod adjusted too far out and that it is causing the throw out bearing to be pushed too hard against the pressure plate and causing too much friction? I had an old 66 Ford F100 with a 302 transplant that I did that to, and when I would push all the way down on the clutch it would cause the engine to start stumbling, and eventually I wore that throw out bearing out. I also got a slight squeel/whine out of the throw out bearing.
you know i would think that might be the case but i push the clutch to the point where it starts to engage and the rpm's start to drop off right then. so the clutch is barly starting to disengage. thats why i'm thinking it might be in the trans. i'm going to pull the drive shaft off and start it to see it that makes any difference and then i'm pulling the trans and checking over eveything. pulling a trans on the comet really isn't too big of a deal to me just a few hours of work.
so ive been thinking about it and talking to lost of people about this problem and i'm pulling the trans agian to see if i can figure it out but this is the idea i came up with. first the front bearing in the trans is going bad (thats why it makes the hissing noise) and my pressure plate is also going bad thats the one thing in the clutch that i haven't replaced. so it's disengaging the clutch enouph to get it in and out of gear but still putting drag on the trans and with the bearing going out on the trans causing the engine to bog down. so thats my best guess whats wrong. i will find out tonight when i pull out the trans. so what do you guys think.
Think about how much drag you would need to put on your engine to make it stall out..... I would be looking for a vacuum hose or a wire - or both - that the linkage is interfering with.
i checked for a vacuum leak and could not find one. i could be missing something but i don't think so. i pulled apart a different trans that i had sitting around and boy the bearings were toast so i'm in the process of rebuilding that one. hey this has given my an excuse to put a v8 trans into my comet and if it's not the problem i should be able to narrow it down with the old trans out. going to do a little investigating before i go popping the rebuilt toploader back in.
I must be missing something here. This doesnt make sense. When you push the clutch the disc is released between the flywheel and pressure plate. The only thing that changes load is the throw out bearing. Even if it was seized it wont stall the engine it will tear itself apart. If something was binding in the trans it would come into play with when engaging the clutch not releasing it. With your foot off the clutch and in neutral the car runs fine. At this point you are spinning up the input shaft and bearings. When you push the clutch the load on the engine drops. I dont get it. Cant wait to here the outcome for this one. Very strange.
If your car has not been modified, you should have a neutral safety switch that wiil not allow the motor to be started in any gear but neutral. Look at this circuit and it's wiring for a rub-through when the transmission is selected for low gear and the clutch is depressed. You have linkage from the motor to the frame the clutch rods are attached to. Find the Neutral safety switch and wiring both inside and under the car. If there is an open or a short it can kill the ignition as it is supposed to do. Good luck.
They kill the starter so it wont crank in gear. An ignition kill would still allow a starter to crank and move the car. Unless Ford wired it into ignition as well as the starter. I dont think so though. Somebody check a wiring diagram.
I had the same problem on my 85 Ranger. The problem was the pressure plate came un-glued. It would try to stop rolling if I pushed in the clutch and roll if I let the clutch out...no matter what gear I was in. It broke while I was driving. It sounded like a bearing going bad also. Let us know what you find out if you end up pulling the clutch
i will let you know what happens. this is a real mind bender for me i can't think of what is causing this so i get to investigate instead. this is not a stock set up. the car was a auto when i got it and i converted it. i cut the neutral start safety wiring off the trans. the trans i'm rebuilding to put in does not have the neutral start wiring so i won't have to worrie about that any more. hopefully i will figure this out tomorrow when i drop the trans again. thanks for all the suggestions on whats wrong.
I think your on the right track. Something must be broken and messed up in that there thingy. Thats my expert opinion.
well you know thingys. if something is messed up inside of them you got you self a problem. because any thing could be wrong with your thingy. i haven't dropped my trans yet. my brother in law was suppose to come help on sunday but ended up having emergency surgery for appendicitis so i'll pull it thusday or friday this week. i have been doing all the other things i've been putting off. oh yeah and my gaskets and shaft seals for my trans i'm rebuilding wont be in untill friday.
