| Cruise Control repairing [message #88542] |
Mon, 14 June 2010 13:11  |
Oldngray
Messages: 544
Registered: August 2009
Location: Punta Gorda Florida
Karma: 0
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Our CC quit while we where on our last trip. I just found the cause, a broken chain. The bad part is that it broke inside the Rubber boot. Also the boot is brittle and should be replaced.
1. How have others gone about repairing?
2. Is the chain the "right" answer?
3. Maybe a trip to the mens mall is in order. What other automobiles used this system?
Have searched but did not find answers.
Thanks much
Richard MacDonald
Punta Gorda, Florida
Sold our TZE April 2015
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| Re: [GMCnet] Cruise Control repairing [message #88556 is a reply to message #88546] |
Mon, 14 June 2010 14:31  |
Ken Coit
Messages: 151
Registered: November 2005
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Rubber boot?? The last time I had the cruise control hooked up the chain
hung up on the base of the distributor and nearly resulted in an accident.
The chain feeds through a brass/bronze tube, which I thought was stock. It
seemed as if the tube needed to be supported with a bracket, but there is
none. What is the correct installation?
On Mon, Jun 14, 2010 at 2:39 PM, fred veenschoten <fredntoni@cox.net> wrote:
>
>
> i believe Jim K. has new ones.
>
> --
> Fred V
> '77 Royale RB 455
> P'cola, Fl
> _______________________________________________
> GMCnet mailing list
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--
Ken Coit, ND7N
Raleigh, NC
Parfait Royale
1978 Royale Rear Bath, 403, 3.07
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| Re: Cruise Control repairing [message #88596 is a reply to message #88542] |
Mon, 14 June 2010 20:42 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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| Oldngray wrote on Mon, 14 June 2010 14:11 |
Our CC quit while we where on our last trip. I just found the cause, a broken chain. The bad part is that it broke inside the Rubber boot. Also the boot is brittle and should be replaced.
1. How have others gone about repairing?
2. Is the chain the "right" answer?
3. Maybe a trip to the mens mall is in order. What other automobiles used this system?
Have searched but did not find answers.
Thanks much
|
mine looks like this one with a rod.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=15958&cat=4393
C. Boyd
76 Crestmont
East Tennessee
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| Re: Cruise Control repairing [message #88604 is a reply to message #88596] |
Mon, 14 June 2010 21:34 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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My 74 and 75 both look the same so I also believe this is the stock system. No chain anywhere.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: Cruise Control repairing [message #88609 is a reply to message #88604] |
Mon, 14 June 2010 21:59 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
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| midlf wrote on Mon, 14 June 2010 21:34 |
My 74 and 75 both look the same so I also believe this is the stock system. No chain anywhere.
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my '76 has the bead chain.
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: Cruise Control repairing [message #88622 is a reply to message #88616] |
Tue, 15 June 2010 02:16 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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My 76 had a bead chain also but someone removed the tube and it kept getting hung up and sticking the gas pedal. I made my own tube out of a piece of electrical spaghetti and fixed the problem.
I no longer have it as it got destroyed in my engine fire. I now have a Rostra CC. It is a great improvement over the old OEM vacuum unit.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Cruise Control repairing [message #88635 is a reply to message #88542] |
Tue, 15 June 2010 07:26 |
Oldngray
Messages: 544
Registered: August 2009
Location: Punta Gorda Florida
Karma: 0
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Thanks everyone, I have ordered new chain from McMaster. The tube that some speak of was not on mine so I will make something up, sure don;t want to turn my Coach into a Toyota. <bg>
I only want a CC to maintain the speed I set and this one does that just fine.
Richard MacDonald
Punta Gorda, Florida
Sold our TZE April 2015
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| Re: [GMCnet] Cruise Control repairing [message #88636 is a reply to message #88556] |
Tue, 15 June 2010 07:41 |
Oldngray
Messages: 544
Registered: August 2009
Location: Punta Gorda Florida
Karma: 0
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| Ken Coit wrote on Mon, 14 June 2010 15:31 |
Rubber boot?? The last time I had the cruise control hooked up the chain
hung up on the base of the distributor and nearly resulted in an accident.
The chain feeds through a brass/bronze tube, which I thought was stock. It
seemed as if the tube needed to be supported with a bracket, but there is
none. What is the correct installation?
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Ken, Mine does not have a tube, however, looking at the Manual, it does show one, so I am going to make something up.
Richard MacDonald
Punta Gorda, Florida
Sold our TZE April 2015
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| Re: [GMCnet] Cruise Control repairing [message #88643 is a reply to message #88636] |
Tue, 15 June 2010 08:31 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Tube? What tube?
My 75 has just a chain.
OK....added to my todo list.
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: Cruise Control repairing [message #88691 is a reply to message #88635] |
Tue, 15 June 2010 15:09 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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| Oldngray wrote on Tue, 15 June 2010 06:26 |
Thanks everyone, I have ordered new chain from McMaster. The tube that some speak of was not on mine so I will make something up, sure don;t want to turn my Coach into a Toyota. <bg>
I only want a CC to maintain the speed I set and this one does that just fine.
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Per the parts manual,it looks like the change ocurred during 1975 on an interim basis.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Cruise Control repairing [message #88692 is a reply to message #88647] |
Tue, 15 June 2010 15:23 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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| mcolie wrote on Tue, 15 June 2010 08:50 |
| Keith V wrote on Tue, 15 June 2010 09:31 |
Tube? What tube?
My 75 has just a chain.
OK....added to my todo list.
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Keith,
Add the tube or something NOW. . .
During a local excursion last season, my wife (likes to drive during daylight) tapped the brake to kick off the cruise on approach to a small town and the coach did not/would not slow.
Key Off - (bad shut down) - Flashers On we coasted to the road edge (one shot of brakes - too).
Inspection found the bare bead chain had hung up on the throttle cable bracket. I cleared the cruise chain off completely.
When back at base, I put a piece of plastic sleeve on the entire length of the chain a shrank it on the chain at the carb end.
It has not been an issue again.
Matt
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I had that same failure many times. I used a piece of spaghetti and did not shrink it to the chain. I cut the spaghetti about 1.5 inches shorter (on each end) than the chain. Then I just slipped it over the chain.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Cruise Control repairing [message #88711 is a reply to message #88636] |
Tue, 15 June 2010 16:37 |
Ken Coit
Messages: 151
Registered: November 2005
Karma: 0
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Senior Member |
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I think the chain provides isolation from the throttle, yet allows the
cruise control to pull. Perhaps my ball chain is just too long and needs to
be adjusted. Is there a spec on how long it should be?
What say you GMC experts?
On Tue, Jun 15, 2010 at 8:41 AM, Richard MacDonald <rm1936@gmail.com> wrote:
>
>
> Ken Coit wrote on Mon, 14 June 2010 15:31
> > Rubber boot?? The last time I had the cruise control hooked up the chain
> > hung up on the base of the distributor and nearly resulted in an
> accident.
> > The chain feeds through a brass/bronze tube, which I thought was stock.
> It
> > seemed as if the tube needed to be supported with a bracket, but there is
> > none. What is the correct installation?
>
>
>
> Ken, Mine does not have a tube, however, looking at the Manual, it does
> show one, so I am going to make something up.
>
> --
> Richard MacDonald
> Punta Gorda, Florida
> 76 Edgemonte TZE 266V102313
> 94 K2500 6.5 Turbo Diesel Silverado
>
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Ken Coit, ND7N
Raleigh, NC
Parfait Royale
1978 Royale Rear Bath, 403, 3.07
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| Re: [GMCnet] Cruise Control repairing [message #88725 is a reply to message #88711] |
Tue, 15 June 2010 17:33 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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I believe the manual has a procedure to allow for the correct slack, but I've had best success with just one "ball" extra before being tight. You don't want it tight otherwise the throttle won't close, and if it is too loose, the response is slow and it may not have enough travel to maintain speed in the upper range. And that adjustment is with the engine warm so that the fast idle cam is not engaged.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: Cruise Control repairing [message #88751 is a reply to message #88542] |
Tue, 15 June 2010 19:53 |
jknezek
Messages: 1057
Registered: December 2007
Karma: 5
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Senior Member |
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I remember asking Jim Bounds how to fix an OEM cruise control one time. He looked at me and laughed. I got a rostra last summer. Unbelievable difference. Never gets tired (the random click offs of my OEM my wife always referred to as the old girl getting tired), doesn't bleed speed up small hills, and was pretty inexpensive. Well... until I couldn't get the install right and had to pay the mechanic.
Thanks,
Jeremy Knezek
1976 Glenbrook
Birmingham, AL
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| Re: [GMCnet] Cruise Control repairing [message #88760 is a reply to message #88725] |
Tue, 15 June 2010 20:45 |
Ken Coit
Messages: 151
Registered: November 2005
Karma: 0
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Senior Member |
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Thanks Bob. I think a PO must have just bought a length of chain and put it
all in there.
I might just try it again once I have Parfait Royale back on the road. I
will make certain that the chain cannot hang up on the distributor!
On Tue, Jun 15, 2010 at 6:33 PM, Bob de Kruyff <NEXT2POOL@aol.com> wrote:
>
>
> I believe the manual has a procedure to allow for the correct slack, but
> I've had best success with just one "ball" extra before being tight. You
> don't want it tight otherwise the throttle won't close, and if it is too
> loose, the response is slow and it may not have enough travel to maintain
> speed in the upper range. And that adjustment is with the engine warm so
> that the fast idle cam is not engaged.
> --
> Bob de Kruyff
> 78 Eleganza
> Chandler, AZ
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Ken Coit, ND7N
Raleigh, NC
Parfait Royale
1978 Royale Rear Bath, 403, 3.07
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: Cruise Control repairing [message #88779 is a reply to message #88751] |
Tue, 15 June 2010 22:16 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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| jknezek wrote on Tue, 15 June 2010 19:53 |
I remember asking Jim Bounds how to fix an OEM cruise control one time. He looked at me and laughed. I got a rostra last summer. Unbelievable difference. Never gets tired (the random click offs of my OEM my wife always referred to as the old girl getting tired), doesn't bleed speed up small hills, and was pretty inexpensive. Well... until I couldn't get the install right and had to pay the mechanic.
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I like the fact that it slows down on the hills. It drives me crazy to no end the cruize controlls that floor it on every little hill, it's more relaxing.
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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