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Engine suddenly lacks power

Posted: Wed Sep 12, 2007 3:59 pm
by lj
The last two weeks ive been driving on the highway to tafe and in the last couple of days there has been a noticable decrease in power accross the rev range. it started as a flat spot about 2500 rpm. it seems to be getting worse each day too. the idle speed has also dropped about 500 rpm and the auto choke doesnt come on very well when its cold either.

any ideas?

Posted: Wed Sep 12, 2007 4:07 pm
by nicbeer
could be the choke sticking on and reducing power.

Posted: Wed Sep 12, 2007 5:07 pm
by MUD-PIGSIERRA
Could possibly be the shaft bushes worn out and the butterflies starting to jamn, you may find if it is this that some days it seems okay then it doesnt idle then it does....

You can check movement by grabbing each end on carby shafts for sideways movement.

Posted: Wed Sep 12, 2007 5:12 pm
by lj
sorry i dont think i was clear enough about the choke. it doesnt stick on, it doesnt come on at all sometimes

Posted: Thu Sep 13, 2007 4:00 pm
by lj
also today i noticed if i pump the accelerator pedal between idle to about 1500, the engine just dies but if i do the same thing with the engine about 2500+ it just revs like usual.
just as i pulled into the drive way today the distributor started making a whining noise

Posted: Thu Sep 13, 2007 6:35 pm
by Danzo
check your water levels, Sometimes if the water level is a little low the auto choke plays up, it seams like its not coming on but it stuffs around with your idiling.

or

check your fuel filters and try emptying your fuel bowl,
Could just be some shit stuck in your jets