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engine vibration

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Muzza72 Officially Full-On Dubber

214 posts · joined Feb 2004 ·

#385996
after some carby problems and a few backfires a vibration developed in the motor and has gotten worse i have been told that the flywheel may have become unbalanced is this a possabilaty if so what would be the fix the engine is a 1600 never had anything done to it has an oil leak do i repair or bite the bullet and replace i would like some oppinions

thanks murray

phil Seriously Crusin Dubber

128 posts · joined Mar 2005 ·

#386016
is the oil leak onto the clutch plate?

has the engine been out of the car recently?

never? had anything done to it?

to many questions come to mind.......how does a flywheel become unbalanced? i guess if it was balanced with a pressure plate on it that was removed and put back on in a diferent position......i think there is more info needed?

Muzza72 Officially Full-On Dubber

214 posts · joined Feb 2004 ·

#386025
apart from normal serviceing and tunes in the 3 years ive had it no other work has been done previous owner says engine has never had anything major done clutch seems to be fine

aggri1 Insano Dub Head

824 posts · joined Dec 2003 ·

#386061
Perhaps a spark plug has stopped working, or a plug lead, etc... When my bus runs on two cylinders (due to lack of fuel on one side) she shakes around like crazy. This would be something very simple to fix, here's hoping hey?!

Cheers, Aurel.

76camper Fahrvergnugen

884 posts · joined Jan 2005 ·

#386098
I dont think a flywheel can become unbalanced if it was in the first place. Something may have happened to it or something.... It is most likely vibrating because of missfiring. When you run it can you hear clunking? I wouldnt be driving it, you may cause more trouble....
http://www.bytevision.com.au/dee/kombi/index.htm

Muzza72 Officially Full-On Dubber

214 posts · joined Feb 2004 ·

#386239
thanks people idle is smooth no missing or unusual noises i took the belt off the vibration disapeared cant find anything loose so may be time to take it to mechanics im going to look on the bright side it may be just the excuse to put in a 1642 thanks again for the input

murray

barls Administrator Causer of Chaos and Mayhem

9,473 posts · joined Jun 2004 ·

#386255
your talking the fan belt arent you cause if the vibration goes away when its removed id be looking at your fan may have lost a blade and becoming unbalanced or it could be in the generator
“We all pay for life with death, so everything in between should be free.” Bill Hicks
the chaos project - click me

General_Failure Use your head, don't abuse it!

1,036 posts · joined Jun 2004 ·

#386510
it could also be a rock from the road in the fan too. It never ceases to amaze me where they manage to get into.
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.

Anthiron The Baja Rejuvenation Begins

4,936 posts · joined Oct 2003 ·

#386513
i wouldnt go ruunning your engine with the pulley off unless u would like a cooked engine rather than a vibrating one.

id check anything spinning on the generator shaft.
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom

Muzza72 Officially Full-On Dubber

214 posts · joined Feb 2004 ·

#386891
only ran the engine for a miute without the belt just to eliminate possabilitys as far as i can see the gen looks ok so the problems got to be in the fan would droping the motor out be the easiest way of getting to the fan have decided to have a go at fixing it myself so any advice would be apreciated

murray

barls Administrator Causer of Chaos and Mayhem

9,473 posts · joined Jun 2004 ·

#386894
no if you undo the strap on the generator then undo the 4 bolts on the generator backing plate and the generator and fan should slid out
“We all pay for life with death, so everything in between should be free.” Bill Hicks
the chaos project - click me

Muzza72 Officially Full-On Dubber

214 posts · joined Feb 2004 ·

#386916
thanks barls much apreciated no doubt i will be looking for more help on the weekend when i try and sort it out

murray