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70 XL Roof

2K views 17 replies 5 participants last post by  Cliff66 
#1 ·
Hi my 70 XL has a power roof, which works most of the time and is pretty cool when it does, but every now and again it stops either half way up or half way down. You can generally force it one way after that but that all depends how far its gone.
Then after a while trying to get it to go up/down it suddenly just works again. It's like there is some kind of thermal/time cutout that resets itself.
Why would it do this?
Is there anything I can do to reset it manually?
 
#5 ·
I don't know anything about the convertible roof, but extech's suggestion makes sense to me and sounds like a good place to start. Some circuit breakers are self resetting, so it makes sense that it may act up some times and work fine the others. If the relay is overheating and tripping there may be some poor electrical connections that are causing the intermittent operation. Clean the connections and use some dialectric grease to help keep them clean and dry. If that doesn't work, then you'll have to go deeper. Are the roof actuators hydraulic, or electric?
 
#6 ·
Hydraulic fluid in the motor/reservoir (it's all one piece) so, I'm guessing they're hydraulic.
I agree with extech about most cct breakers being thermal(that's how they work), but I'm used to the ones that pop out and stay out until reset.
Raining a lot over here at the moment so I'm not taking the cover off her until I can be sure of a clear enough day.
 
#9 ·
correct...
less current to keep pump running at optimal speed..
like trying to get your car going in 3rd gear from dead stop...
something is gonna give...
in this case the circuit breaker...:grin2:
 
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#12 · (Edited)
yeah i was thinking the same...


should only be the one wire that goes to convertible top switch.or..power windows and door locks ??
just dont know for sure, without a 70xl wiring schematic to look at..

if all power to ignition and headlight switch being feed thru that circuit breaker..
that would explain why it gets over loaded and cuts out..


here's a image for a 64 converible... should be very similar ...


 
#18 ·
I have a 1966 ford Fairlane convertible have trouble shooter everything to the circuit breaker which was bad fell apart. But have new one, which side of relay on the car does it hook up to? Being black and the ground that comes from the switch make me the neg side of relay but not sure and help would be great thanks!
 
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