Bump Starting a Diesel
Hi all
My vans starter motor has Died, spins but does not engage, it was making a horrible noise starting, so I guess the teth on the spindle have disintergrated. I was going to fit the starter motor myself, but i gotta jack up parts of the car and disconnect loads of different things, far to much like hardwork, what i want to know is that as the electrics are fine, (pre warming etc) and I live at the top of a hill, can I bump start it. I know people say you cant bump start diesels, but willl I get away with it? |
Re: Bump Starting a Diesel
I don't think that you can bump start a diesel.....
I'm trying to think back now to how internal combustion engines work..... Suck, squeeze, bang, blow..... Nope, don't think it will work. (Actually, I know very little about internal combustion engines, just wanted an excuse to post suck, squeeze, bang, blow :D > __________________ The thing with diesels is that the compression (the squeeze bit) required is a lot higher than it is on a petrol engine. Unless you get sufficient compression the thing simply won't start. I think you're gonna need to make sure that the batteries in really good nick and that the glow plugs are hot at the moment that you dump the clutch.....otherwise you're gonna find yourself at the bottom of a hill with no way of getting back up ;) |
Re: Bump Starting a Diesel
well i am thinking that as the electrics etc are sound that running it though normal start up as i dump the clutch might do it..
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Re: Bump Starting a Diesel
Should work we bump started a peugeot 1.9 gld 309 a few years back in similar circumstances took a few goes.
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Re: Bump Starting a Diesel
Course you can bump start a diesel, turn the ignition key, wait for the heater plug lights to go off then go for your life, make sure you are in 2nd. I've bump started many diesels when I was a cabbie.
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You could always try towing it, would certainly save you some breath!
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Anyway, you will struggle to bump start a diesel just by pushing it. The deisel only burns due to the heat created by the high compression. The compression ratio is much higher than with a petrol engine. Therefore you will have two problems, 1 pushing it with the engine turning and 2 getting enough speed to generate the required heat in the combustion chamber. |
Re: Bump Starting a Diesel
just a question what car is it?
and yes bumping a diesel it not a problem depending who is doing it get it rolling give it the heaters select second gear throttle flat to the floor dump the clutch but if its a very modern car some will not start unless the key is in the sterter motor position :) |
Re: Bump Starting a Diesel
Our 330d was bump started the other morning no problem (hubby tends to sit in the car with the lights on listening to music on night shift).
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Re: Bump Starting a Diesel
Isn't the problem with bump starting a diesel only if it doesn't have enough power to open the fuel solenoid?
Although with enough speed it should turn the engine at least once and hopefully give enough power for the solenoid to open. Remember, a petrol engine stops because when you turn the ignition off, it stops the sparks. In a diesel, it cuts the fuel flow. And after WW3, you'll be grateful for having a diesel ;) |
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mines 18 today :birthday: brum brum
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Re: Bump Starting a Diesel
Its old, N reg its a Van Astra 1.7DT its done a million miles, but the battery is in good nick, i live at the top of a hill. I will let you know how i get on later...
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Re: Bump Starting a Diesel
I wouldn't drive it. You don't yet know whether the starter motor gear teeth or parts of the engagment mechanism have broken off. You don't want bits of metal flailing around your bell-housing. Could knacker your clutch up.
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if not go for it just remember the heaters and :idea: dont stall it:D the starter is pretty easy to change on them but check it before you change it it could be the starter ring on the flywheel:rolleyes: |
Re: Bump Starting a Diesel
I am worried that its the stearter ring, but wont know unitl i get the starter motor, unfortunatly living on a hill rather stops you from jackng the car up...
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I'll get me coat. |
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TBH I wouldn't get under a jacked-up car even on flat ground. Proper axle stands or ramps on flat ground is what one needs. __________________ Quote:
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Taxi for one! Ben |
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I have got axle stands but i dont fancy the mixture of wet days hills cars etc... just waiting for a quote from my garage..
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pity you live so far away ide have done it for the cost of the parts :)
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Re: Bump Starting a Diesel
Thats a kind thought, but you would have been rewarded, anyone who does a good deed should be :)
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Re: Bump Starting a Diesel
Are you sure it`s the starter motor? Years back i stripped a couple of teeth off the ring gear. Try putting it in gear and rocking it. If it is the ring gear, it will move on to a new cog instead of sitting in the gap.
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