aircooler

Hello all,

My sunroof is moving vvveeeerrrryyyy ssssllllloooowwww.

If I help it along with my hand it moves a bit faster.

Any BTDT, and some advice on what to do?

Maybe lube the tracks/cables, etc?

Input greatly appreciated.

Thanks,
Michael

Andre Hedrick

white grease, yes (work it in)
warm to hot day, yes (enables rollback easier)
use thumb to roll the roof back and forth, (saves motor)
adjust roof fit and alignment, (MAJOR help)

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Now back to Whale WARS!

SharkSkin

That tall pedal on the right, push hard on it. Problem solved.

Mike Frye

Same thing that happens to the power seat tracks/gears and power window gears: Your 20+ y/o grease has gone over to the other side and become glue/crud.

First thing to do is take out the sunroof cover (there's a write-up on here somewhere) and clean clean clean all the old grease out. It will take a little while and isn't easy but once you get the old crap out of there hit it with some WD-40 to clean the last bit out. Run it back and forth a few times, then dry the WD-40 and use white lithium grease. It will last a long time that way. (Same procedure works for the power seats and window assembly, although the windows are a bit more involved.)

Landseer

The little transmission has clutches inside it that will deteriorate fairly quickly if you continue to operate it without doing what Mike suggests.

Lizard928

Chris,

Having removed and disassembeled and cleaned alot of sunroof motors, and having never seen any type of clutch assemblies in them. Would you care to expand on this?

Landseer

I was referring to the right angle gearbox or transmission.

Maybe I spoke incorrectly, as I had not taken one apart, but had read that it contained frictions. The 86 sunroof had solidified grease and the motor would operate fine, but the transmission wouldn't move the power to the roof. The transmission slipped.

I took the transmission out and layed it next to a spare recovered from a wreck.

Then, I compared the two. Turning the input side of the 86 transmission while holding the output gear(that mates with the drive cable) I found very little resistance. The input side would spin and not drive the output gear very much. Had slipping at fairly low resistance like a worn LSD. Thats what was happening in the car.

The spare had considerably more force through it before slipping. So I installed it into the 86. It would drive the roof part way, and it too would slip.

So I lubricated the contact surfaces of the roof and that removed enough roof resistance to allow the spare transmission to drive the roof. Then, I put the 86 transmission back in. It still didn't drive the roof at all, just spun. Put the spare in, and it works fine, but it too will slip internally if you hold the roof with your hand.

So I ASSUMED, and thought I'd read, that the transmission had a clutch mechanism.

What is really inside it, Colin?

Landseer

So, I just sectioned the old one with a reciprocating saw. It isn't a clutch pack, but it has some sort of clutch-like function in the center of it to drive the out put gear --- it has to in order to work. It's worn on this one. Not sure if its a repairable thing on others.

Aircooler, sorry for the hijack. Good luck with your fix.

jpNcos

Without starting a new thread can someone educate me on the proper lubricant for the sunroof cables?

I appreciate it!

Jadz928

^^^^^^^
white lithium grease

jpNcos

Confirmed my thinking!
Great!
Thanks!
One more thing do I need to coat the entire cable or just the portion that will be going through the gears?

Tony

Some one put Dwyane on this one....