O/T kinda 2 wheel drive tranny troubles - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 11-17-2002, 12:40 PM Thread Starter
 
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O/T kinda 2 wheel drive tranny troubles

I just got the 351w(replaced original 302 with HO 351w) running in my 1978 f100. thought I would take it 4 a little ride around the block. I topped off the tranny, went thru the gears (c/4,c/5? auto). worked good, checked tranny fluid, it was full. there is a slight hill up my garage driveway. the truck would barely pull itself up the hill. I think, ok, maybe the tranny isn't full. checked again, full. drive the truck up and down the alley a couple of times...tranny is slipping more and more. decide to forget about the test drive, and get it back in the garage. by the time I got to the garage (maybe 300 feet), it would barely move under it's own power. checked the fluid again, full. the truck does not move in drive or low2, but it acts like it would go backwards in low1 and I have reverse, but it slips in reverse. If I rev it real high, the truck will creep forward a very little I disconnected a line from the tranny cooler, started the truck, and it seems to be pumping fluid just fine. Would it do this if I didn't have the torque converter all the way back in the tranny when I put the engine in?.the tranny worked fine 10 months ago when the motor blew up.....thanks, Ben
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post #2 of (permalink) Old 11-17-2002, 04:18 PM
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Re: O/T kinda 2 wheel drive tranny troubles

Yes, the TC should have been ALL the way back in the transmission before you installed it. You might have damaged it by now, but try pulling the inspection cover from the front of the bellhousing (behind the oil pan) and take a look at the flexplate - if it looks bowed toward the engine at the outer edge, the TC isn't fully engaging the transmission.
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post #3 of (permalink) Old 11-18-2002, 04:21 PM
 
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Re: O/T kinda 2 wheel drive tranny troubles

Sounds like the T/C weasn't seated as was indicated. The results from trying to drive it have toasted the front pump. You can try and drop the tranny and look at the t/c and the front pump in the tranny. If they are scared up the tranny isn't even rebuildable with out some costly hard parts.
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post #4 of (permalink) Old 11-18-2002, 04:52 PM Thread Starter
 
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Re: O/T kinda 2 wheel drive tranny troubles

thanks for the answers, guys. kind of what I expected to hear, just wanted a second opinion...time to start turnin wrenches again [img]images/graemlins/frown.gif[/img] It probably would be a waste of time to change the fluid and filter, wouldn't it?
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post #5 of (permalink) Old 11-18-2002, 05:12 PM
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Re: O/T kinda 2 wheel drive tranny troubles

I'd wait until it moves under its own power to change them. [img]images/graemlins/wink.gif[/img]
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post #6 of (permalink) Old 11-18-2002, 08:18 PM Thread Starter
 
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Re: O/T kinda 2 wheel drive tranny troubles

steve, I should have explained myself a little better.....what I was saying is, could it be possible the problems with the tranny are because the filter is clogged? just trying to think of everything before I pull the tranny down again. thanks, Ben
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