| quote | Originally posted by Sledgehammer: One thing I did forget to mention : My Fiero is a 1987 so it has the newer technology motors. In addition, I notice when the hood is open and I turn on the headlights both headlights appear to lift all the way to max at the same speed. When I rebuilt the units I did not pull the motors out. In the process the left unit had the delron pins turned to dust inside. I cleaned it out and placed new delron pins inside. So, I guess the question also what causes the delron pins to get crushed to dust? Perhaps the condition is still there and the new ones are being damaged. There is a new aluminum gear in this one also. Hope this helps a little.
I appreciate all the feedback and help . |
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Is called
Delrin and is another DuPont Brand Name plastic relative to Nylon also a DuPont name.
Delrin is only used for Gen2 motors for 87+ and some older cars converted to Gen2.
Read the links I posted above.
Why Gen2 Motor die in short...
GM
Never used Delrin pins there. Plastic type is one of the polyurethane family because was made Weaker
on purpose then the Gear and Output Shaft to take the impact loads at End of Travel when door are open close or is Jammed. They "get crushed to dust" Because the pins get old and wear out then gear will crush them easy. Shape of inside of Gear and output shaft is made so when pins fail that won't damage either. Ford and others use same thing in PW motors etc.
Only others Sell Derlin pins/dowels/rollers/whatever that
won't eat the loads at EoT and Jamming. Many fools try to use steel and other crap and will do same thing breaking next weak part.
Then add... New Aluminum or other Metal gear w/ Delrin pins can break the output shaft or strip teeth for lube and/or load problems.
Worm gearing (Google) puts big loads on the gears and can soon wear out teeth. Worse w/o proper lube on teeth and bearings.
[This message has been edited by theogre (edited 02-20-2020).]