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#24035 04/20/2004 1:29 PM | Joined: Apr 2004 Posts: 33 Member | | Member Joined: Apr 2004 Posts: 33 | i had a back tire off and the engine idling at the same time on my '53 3100 and the wheel was slowly rotating forward.
is this a clutch problem?
what would be my best approach to adjust anything? | | |
#24036 04/20/2004 2:48 PM | Joined: Sep 2002 Posts: 115 Member | | Member Joined: Sep 2002 Posts: 115 | Doesn't sound like a problem to me, assuming the trans was in neutral while this was happening. The gear oil in the trans is stiff enough, especially when cold, to transfer a little motion from gear to gear due to shear action between the gears. Sort of like a torque converter.
The shear action is not efficient enough to do much work; you can stop the wheel or brake drum easily by hand, I'd imagine.
Joe | | |
#24037 04/20/2004 3:00 PM | Joined: Jul 2000 Posts: 962 Shop Shark | | Shop Shark Joined: Jul 2000 Posts: 962 | May I also add, its a bad idea to have an engine running when vehicle is on a jackstand? Cars can shake off a stand and fall. be careful out there.....  chip
Preaching the Hot Rod Gospel according to the 4-stroke apostles:
Suck, Squish, Fire and Fumes
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#24038 04/20/2004 6:00 PM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Originally posted by chiphead:
May I also add, its a bad idea to have an engine running when vehicle is on a jackstand? Cars can shake off a stand and fall.
chip Chip, I hope you didnt have a problem with this, too! 
Fred
52 3600
69 C-10
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#24039 04/20/2004 8:01 PM | Joined: Sep 2002 Posts: 115 Member | | Member Joined: Sep 2002 Posts: 115 | Chip, I had decided not to commment on your post, but I've been thinking about it and I have to say...
If your jackstands and the surface on which they sit are not strong/level/hard enough to support an idling vehicle, they are not adequate to work under.
We do things under our trucks that will impart more energy to the truck in more dangerous directions than a idling motor. I wouldn't get under the truck at all if I didn't trust the stands to hold it while it was running.
Joe | | |
#24040 04/20/2004 9:52 PM | Joined: Feb 2004 Posts: 29,777 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,777 | Yes, the trans lube will transmit enough torque to spin the driveshaft, but pretty slowly under normal circumstances. The Model "T" would actually roll forward in neutral if it was started with the trans grease cold, so some people would jack up one rear wheel before cranking the engine on a cold morning. Otherwise, the things could run over the person out front turning the crank!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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Love your enemies and drive 'em nuts!
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#24041 04/21/2004 1:41 AM | Joined: Apr 2004 Posts: 33 Member | | Member Joined: Apr 2004 Posts: 33 | i can't beleive i learned something about my van that didn't translate into 2 weekends spent crawling around under it trying to fix it!!
thanks
by the way it was sitting on a stand and the jack itself, and i would never get under there while it was runnin!! | | |
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