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Distributor cap damage from broken belt

 
Old 01-17-2012, 02:02 PM
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Mr.Spacely
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Default Distributor cap damage from broken belt

Just thought someone might like to see what happens inside the cap when the secondary rotor is firing between two of the contacts.

I probably put 300 miles on this car before I realized the belt was broken, hoping this is the extent of the damage. Funny thing is, it ran just fine except for a low-RPM hesitation.

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Old 01-17-2012, 02:48 PM
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apanossi
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Spacely- that looks scary. Is there any way at all to diagnose a problem with the distributor belt without ripping it apart? Especially important since you had essentially no overt signs of a problem (except mild hesitation).
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Old 01-17-2012, 03:06 PM
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Well pulling the secondary cap is the most direct way to tell, just reach in with your finger and see if the rotor spins. I noticed while replacing the belt, that you might be able to look inside the inspection cover on the side of the distributor, with a mirror and flashlight, if you have the vent tube mod. The vent tube on mine attaches to the primary inspection cover port, but I didn't realize this until it was apart.
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Old 01-19-2012, 09:24 AM
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See https://rennlist.com/forums/964-foru...utor-test.html

Mine broke in 2007 (it had been replaced in 1998), so I plan to have it change every 5 or 6 years.

As for the symptoms, the car was not accelerating as much as I thought it could, and was running rough at low RPMs on steep carpark ramps.
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