motor rotates but wont start
Submitted: Saturday, Feb 04, 2006 at 13:36
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glowing-hot
hi, just thing ive done big damage,ok was driving and patrol 2.8 stopped,temp gage said bloody hot,radiator cold full of water plenty of oil on dip stick,motor totates real fast but wont start,on rotating engine a chuffing noise comes from exhaust.as you can tell im not real mechanical minded but maybe piston,head gasket.just a guess any one have any ideas please.also for got to mention that the exhaust up near the turbo was glowing red hot
Reply By: guzzi - Saturday, Feb 04, 2006 at 13:51
Saturday, Feb 04, 2006 at 13:51
MMMM,
You may have burnt out an exhaust valve, possibly more than one, this causes low compression and a chuff chuff sound out the exhaust.
Can you hear "chuffing"when it turns over from the oil filler hole?
Low or no compression means it will turn over faster on the starter motor.
This could be secondary damage caused by either a blocked cooling system ie frozen closed thermostat or a catastropic failure of the water pump( the belt still on?) which has led to overheating.
Any water in the oil? looks like a creamy paste, look at the bottom side of the oil filler cap.
I suspect you may have cooked it, get a competant mechanic to look at it.
AnswerID:
152926
Reply By: howesy - Saturday, Feb 04, 2006 at 13:53
Saturday, Feb 04, 2006 at 13:53
Chuffing noise from the exhaust hey, cold radiator hey, just guessing your thermostat might have ceased and your head gasket is gone and you burnt out a valve in the process. just for interest sake PM me when you find out . Pull the glow plugs and hire diesel compression tester and
check compression, if its down the head has to come off anyway and I bet you will find that when you put the head in for seals and reseating of valves that an exhaust valve is not seating properly. Good luck but if you do it yourself you could get out of it for maybe around $500 or up to $1500 at a mechanic.
Shop around some mechanics are rip offs when it comes to diesels go where others have had good service.
AnswerID:
152928