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88 Ram 50 Idler Pulley Failure
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CarGuru > Dodge > 88 Ram 50 Idler Pulley Failure 21 April 2005 21:13:06

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88 Ram 50 Idler Pulley Failure

Scott 19 April 2005 22:21:39
 I'm fooling with my neighbor's 1988 Ram 50 with the 2.0 liter Mitsu engine.
Upon removing the timing belt cover, ball bearings fell over the floor.
There are 2 belts under there. The main timing belt and pulleys are ok.
There is a smaller toothed belt between the crank and what I assume is the
oil pump. The idler pulley between them is what is toast.

Now, if this second belt runs the oil pump like I think, why is there a
timing mark on the sprocket? This is what's leading me to think it might
not be the oil pump. If not, what is it, and how critical is the mark? Is
there probable damage if the the motor was running (it was) with a
completely disintegrated idler pulley?

Thanks a bunch, all.





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Scott 21 April 2005 06:48:14 permanent link ]
 I doubt I'll see the innards of the thing. I still don't know what the
balance shaft is for and how it affects the crappy running condition. I've
not seen anything like this on the Honda, Volvo or VW 4-cyl engines I've
worked on.


"Steve@carolinabree­zehvac.com" <webmaster@carolina­breezehvac.com> wrote in
message news:_dj9e.890$6x.6­119@eagle.america.ne­t...>
"Scott" <sbd@cox.net> wrote in message> news:W8e9e.14451$Zr­.3011@lakeread08...>­> Thanks. Then it appears we've found why it was running rough. I was>> baffled because the main belt is ok, as were the plugs, cap rotor, etc. >> I>> thought I would still have to diagnose that after the new pulley arrives.>> I'll treat it as good news. And, I'm assuming no damage running it off a>> few teeth, just rough running. More good news.>
Yup...thats all it takes. If you get a chance to look at the crank, you > know> why its needed.>


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CarGuru > Dodge > 88 Ram 50 Idler Pulley Failure 21 April 2005 21:13:06

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