Corvair DiagramCorvair Photo
Corvair Center
home forum corvairs calendar links Corvair Podcast
California Corvairs
Clarks Corvair
Clarks Corvair
“CORSA"



Chevy Corvair License Plate
Chevy Corvair Chrome Wheel
Corvair Center Forum :  Corvair Center Phorum The fastest message board... ever.
Corvair Center 
Pages: 12Next
Current Page: 1 of 2
Convertible top intermittent problems
Posted by: cochranrg ()
Date: June 06, 2019 10:24AM

Hey everyone, my convertible top only moves about a foot or so then stops. I have to wait like 10 minutes before it will move again. Checked the wiring at the switch and it looks good. Has constant power. Wondering if this could be the relay by the motor or the motor itself (overheating?).

Appreciate in advance any insights.


Rob

1966 Corvair Corsa Convertible

Bennett, Colorado


Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: 2ragtops ()
Date: June 06, 2019 11:01AM

My vote is the relay is overheating and cutting out.

Bob Bauer

Show-Me Corvairs

1966 Monza Convert 140 P/G with A/C, plastic wheel with tele-column am-fm posi-traction
1966 Corsa Convert 180 wood wheel tele-column am-fm sport steering posi-traction
1965 Corsa Coupe Crown V8 temporarily red lined for repair
House Springs, Missouri

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: jjohnsonjo ()
Date: June 06, 2019 12:26PM

I think there is a thermal cut out

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa


Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: vaporloc ()
Date: June 06, 2019 02:51PM

Yep. Been there done that. Thermal cut out. To be sure, jump across it.

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: steve c goodman ()
Date: June 06, 2019 03:36PM

Since the car has sat dormant for a while
you might lightly lube all of the pivot
points.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: junkman ()
Date: June 06, 2019 07:13PM

If it sat for a long while, there is a chance that the pistons are rusted and will need to be cleaned with steel wool and oil until all the rust is removed. Then the next thing to check is the level in the hydraulic system. The old fluid was brake fluid, and while it worked well when new, it has been absorbing water for the past 50 + years, and all that water has caused rust in the pump assembly. It can be cleaned and refilled with transmission fluid, but it is a difficult job, since you need to disassemble it in its entirety. Sometimes you get lucky, and all goes well. Other times, it is just not worth the hassle, and new pumps are available.

---------------------------------------------------------------------------------------------------------------
Woodstock CT... Located on the Connecticut / Massachusetts border, approximately 6 miles from the center of Southbridge MA. About 45 minutes from Hartford CT. 1 1/2 hours West of Boston MA. Woodstock CT to Los Angeles CA 2,937.1 miles. 1 Mile as the crow flies to Big Bird's nest.

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: azdave ()
Date: June 06, 2019 07:33PM

junkman Wrote:
-------------------------------------------------------
> If it sat for a long while, there is a chance that the pistons are rusted...

He has a 66 vert. Only earlies had hydraulic actuated tops.

Dave W. / Gilbert Arizona
65 Corsa 140/4
66 Corsa 140/4
66 Corsa 140/4 w/factory A/C
66 Corsa 455 Toro V8
65 Monza Convertible 110/4
66 Monza Convertible 140/4 A/C
65 Monza 4DR 140/PG w/factory A/C
65 Monza 4DR EJ20T/5



Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: Timothy Shortle ()
Date: June 06, 2019 08:12PM

Correct Dave. But if this car has sat all the moving parts should be cleaned and lubed (both cables, both transmissions, the gears, the motor, etc). If the "thermal cutout" is having an open circuit at times (due to overheat) that tells me there is resistance most likely in the moving parts. I believe the thermal cutout is actually a circuit breaker (same thing? I never heard it called a t c before this discussion).

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: cochranrg ()
Date: June 06, 2019 09:43PM

There is a "circuit breaker" somewhere in the system according to some schematics I found. I just cant find the physical breaker. I'll replace the breaker if I can find it and lube everything up.


Rob

1966 Corvair Corsa Convertible

Bennett, Colorado


Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: junkman ()
Date: June 07, 2019 01:46AM

Usually located behind the left kick panel (vent) on GM cars, but as has been pointed out, it is a late model, and I have very limited experience with them.

---------------------------------------------------------------------------------------------------------------
Woodstock CT... Located on the Connecticut / Massachusetts border, approximately 6 miles from the center of Southbridge MA. About 45 minutes from Hartford CT. 1 1/2 hours West of Boston MA. Woodstock CT to Los Angeles CA 2,937.1 miles. 1 Mile as the crow flies to Big Bird's nest.

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: jjohnsonjo ()
Date: June 07, 2019 05:11AM

[www.corvair.com]

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa


Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: azdave ()
Date: June 07, 2019 05:36AM

cochranrg Wrote:
-------------------------------------------------------
> There is a "circuit breaker" somewhere in the system according to some schematics I found.

On late models I've only seen them mounted forward of the battery to the left of the voltage regulator. Only ever had two power tops in 50 years so I'm no authority.



Timothy Shortle Wrote:
-------------------------------------------------------
> Correct Dave. But if this car has sat all the moving parts should be cleaned and lubed...

No disagreement there but my reply was because 90% of junkmans post was about checking all that could go wrong with the hydraulics which is not involved here.

Dave W. / Gilbert Arizona
65 Corsa 140/4
66 Corsa 140/4
66 Corsa 140/4 w/factory A/C
66 Corsa 455 Toro V8
65 Monza Convertible 110/4
66 Monza Convertible 140/4 A/C
65 Monza 4DR 140/PG w/factory A/C
65 Monza 4DR EJ20T/5



Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: rnch ()
Date: June 07, 2019 06:50AM

steve c goodman Wrote:
-------------------------------------------------------
> Since the car has sat dormant for a while
> you might lightly lube all of the pivot
> points.



Doing this made a noticeable improvement of Skyler's top down/top up speed and quietness in action.


thumbs up

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: Timothy Shortle ()
Date: June 07, 2019 09:03AM

There is probably nothing wrong with the circuit breaker. It is (probably) just doing its job. (Probably) no need to replace it. On the LM cars it took the place of the junction block AND became the junction block. Located next to the battery on the frame rail.

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: cochranrg ()
Date: June 07, 2019 11:02AM

I can't find the CB, nothing by the battery unless I'm looking in the wrong place. I'd like to find it... Anyone have a pic? 66 Corsa

Timothy Shortle Wrote:
-------------------------------------------------------
> There is probably nothing wrong with the circuit breaker. It is (probably) just doing its job. (Probably) no need to replace it. On the LM cars it took the place of the junction block AND became the junction block. Located next to the battery on the frame rail.


Rob

1966 Corvair Corsa Convertible

Bennett, Colorado


Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: Timothy Shortle ()
Date: June 07, 2019 12:14PM

I mentioned the factory location. If car has been "monkeyed" with (most have by now) it is anybody's guess. Try following the small positive wire off the positive battery cable. Or post a picture of your battery/cables.

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: azdave ()
Date: June 07, 2019 12:27PM

cochranrg Wrote:
-------------------------------------------------------
> I can't find the CB, nothing by the battery unless I'm looking in the wrong place. I'd like to find it... Anyone have a pic?

Just took one for you. This is on a 66 Monza I got not long ago and I'm pretty sure this bit is all original.

Dave W. / Gilbert Arizona
65 Corsa 140/4
66 Corsa 140/4
66 Corsa 140/4 w/factory A/C
66 Corsa 455 Toro V8
65 Monza Convertible 110/4
66 Monza Convertible 140/4 A/C
65 Monza 4DR 140/PG w/factory A/C
65 Monza 4DR EJ20T/5



Attachments:
Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: Timothy Shortle ()
Date: June 07, 2019 12:51PM

Uh, I don't think so Dave. As mentioned it is next to the battery and takes place of what some have called the HRPT.

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: Timothy Shortle ()
Date: June 07, 2019 12:58PM

I may need to amend my comments. I just went and looked at my pretty original 65 Corsa Turbo convertible (it's FD) and it has the circuit breaker NEXT TO the HRPT.
The circuit breaker has a 2 inch wire going to the HRPT (junction block).
I am pretty sure my 69 convertible DOES NOT have the hrpt. It "piggy backs" off the CB.

Options: ReplyQuote
Re: Convertible top intermittent problems
Posted by: Chris Lampe ()
Date: June 07, 2019 08:17PM

See if this helps.



Chris
Rowlett, Tx
NTCA - North Texas Corvair Association
CORSA
'64 Monza 'vert

Options: ReplyQuote
Pages: 12Next
Current Page: 1 of 2


Sorry, only registered users may post in this forum.
This forum powered by Phorum.