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  #1  
Old 05-14-2009, 09:13 AM
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can I drive 10 miles without belts?

All the belts are off my 300TD and I need to move it 10 miles to finish the job and put new belts on. Will it hurt anything to drive 10 miles without belts? I know I won't have power steering or AC, and the battery won't get charged. I'm mostly wondering about the water pump. It seems that's not driven by a belt, so I should be OK. Or not? thanks. Larry Larson

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Old 05-14-2009, 09:21 AM
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I would not.
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Old 05-14-2009, 09:24 AM
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ok, thanks, is there are reason? what would be damaged? Larry
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Old 05-14-2009, 09:24 AM
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All water pumps I have seen on TD's are driven by belts. I would not do it either.
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  #5  
Old 05-14-2009, 09:36 AM
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I think your engine will overheat pretty quickly - I wouldn't chance it. Thermo siphon cooling just isn't going to cut it here. In the end a 10 mile tow is going to be a lot cheaper!
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Old 05-14-2009, 09:38 AM
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Quote:
Originally Posted by Larry Larson View Post
I'm mostly wondering about the water pump. It seems that's not driven by a belt, so I should be OK. Or not?
The water pump is driven by two belts. No belts = no water pump.
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Old 05-14-2009, 09:50 AM
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Can you at least put one of the belts that drives the alternator and water pump? Even an old one? I don't remember if that one drives the fan, but if not you could jumper the electric fan so it runs.

You should have the coolant moving when the engine is running.
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Old 05-14-2009, 09:56 AM
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It's not only heat, but heat distribution. The engine can take a fair amount of heat if distributed (fairly) evenly by coolant flow.
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Old 05-14-2009, 09:58 AM
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My belt broke once as I was pulling into work. I also thought that I could get home a fix it. Who needs the alternator?, I was thinking.

I forgot about the water pump. I looked at my gauge on the expressway 6 miles later and it was pegged. I shut off and coasted a while. I pulled into a gas station and called a buddy. He took me to a parts store and I bought a belt. We went back and I put it on and all was right with the world.

What a scare!
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Old 05-14-2009, 10:00 AM
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I threw a belt on my 240D while on the freeway and drove it another 20 miles to get to my mechanic's who was the closest source for belts on a Saturday morning. If I went any faster than 55mph the engine temp would reach the red but it made it and the car had no leaks or loss in performance in the 10k miles I drove it after that.

But if you can get a ride to get the belt I would definitely do that instead.
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Old 05-14-2009, 10:01 AM
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I wouldn't do it. Once when my belt broke a few years ago I was able to make it home...

However that was being within a mile of home and even then I stopped after about half a mile because the temperature was starting to rise (It doesn't take long at all) I waited a few minutes for the temp to come down, accelerated and then coasted the rest of the way with the engine off.
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Old 05-14-2009, 10:02 AM
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Make a duct tape belt if you have to.
I killed my 93 Ranger trying to get to the next exit without a belt, and a friend of mine recently killed his Buick when he threw a belt.

I wouldn't chance it
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Old 05-14-2009, 10:14 AM
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Quote:
Originally Posted by Larry Larson View Post
ok, thanks, is there are reason? what would be damaged? Larry
I would not do it. You'll wreck the engine. The water pump IS indeed belt driven. A half a mile starting with a cold motor driven slowly? 10 miles? Never.
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  #14  
Old 05-14-2009, 11:41 AM
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Seriously

You can steal a pair of your wifes pantyhose and wrap them around the belt path and tie them. works as an emergency measure, I have done it. No belts is asking for a dead engine. Cheers Dan
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  #15  
Old 05-14-2009, 11:48 AM
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The belt drives:
alternator - can do without
compressor - can do without
water pump - can do without if you drive 1 mile and rest for 1 hour
power steering - you may have a hard time steering it. I find it very hard to steer without power steering on a 300D.

In theory, it is possible. In practice, you need to rest and let the engine cools down.

Have you ever thought of using penty hose to wrap round the water pump?

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