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7/13/10 8:05pm - Original Message: 'cruise control'
Babyblue 78
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Vette(s):
1978 Corvette Light Blue Pulled from the swamps of Miami! Its a driver and back on the road!

Joined: 12/3/2007
Posts: 262
Ok baby steps!
Today on my back again looking up at the steering column, removing all electrical connections to the cruise control parts.  Cleaning and removing any rust,dirt etc... all back together and test the engage and disarm connections at the transducer and I have current to them finally.
 
Ok so I take a test drive and try to engage the cruise and no luck.  I am seeing a big jump on the bat/amp meter when the cruise is going through the engage section with the button.  Is this normal, I can see a bump but this is a major neddle movement as its going to or past engage?
 
Short drive but at one point the cruise engage and must been to accelerate as she took off...brake stop the command but then unable to re-engage.....
 
Just checked that the ground strap is attached to the transducer but not sure of the other end..
 
Any more electric suggestions before I get to checking the vacuum parts???The fact that it did engage at one point makes me feel the electric is maybe ok but the vacuum is not steady.
 
Will report back sonce I have time to check the vacuum.
 
One curious thing I did discover right or wrong and maybe someone with a 78 can check their's??
The engage/disengage white/brown wire was wrapped with electrical tape to the vacuum line that
goes in through the firewall to the top of the break stop. Is this normal for the wire to be taped to the vacuum hose...also the brown i believe resistant wire was long and bundled under the tape?
 
The diagrams show a resistant wire going along the left fender panel towards the front of the car but cannot find a pictureof this is it a single wire inside a plastic cover and whre does it go???
 
It looked like someone bundled mine up with the vacuum hose and then taped it to it,no sign of any resiter whire elsewhere.
 
sorry for the length but just trying to return BB78 from the swamps to the road.
 
Any input is greatly apreciatedelectric or vacuum! BB78Cry
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7/16/10 9:26pm - Reply: 'cruise control'
Babyblue 78
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Vette(s):
1978 Corvette Light Blue Pulled from the swamps of Miami! Its a driver and back on the road!

Joined: 12/3/2007
Posts: 262
OK with  just some free time you can get something done, I have some success with the cruise control. Removed all the electrical connections and sanded  down and cleaned and then today I removed all the vac lines and check them according to a prior post from england on the cruise control system, good review and educational... OK I will get on with it... The cruise control is engaging...BUTTTTTTTTTTTTTTTTTTTTTTTT it engages and then takes off full throttle it's nice but not exactly what I'm looking for.  OK so I'm thinking too much vacuum and the diafram with the throttle linkage is moving too much or an adjustment on the linkage itself... but still it's advancing not staying at the point/speed at which engage. I research more but any suggestions on where I stand now??? BB78

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7/18/10 6:00am - Reply: 'cruise control'
CeeDee
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, - New Zealand

Vette(s):
Silver '81 mostly original C3. Silver interior, bilstiens, big sway bars, headers.

Joined: 3/26/2005
Posts: 231

Yep, been here done that. Punch the Cruise button and afterburner kicks in !!

I expect your problem to be the same as mine...  inside the transducer are two disks, face to face.

One is continuously driven via the speedo cable from the gearbox. In a properly working system this disk "influences" the second disk to try and rotate, but the second disk rotates against a spring, and so will only turn so far - ie through an arc until the spring pressure stops it from going any further. The faster you go, the faster the first disk spins, the greater the arc the second disk achieves. In my afterburner system years of gunk had got between the two disks so that the second disc was always being driven to its maximum possible arc irrespective of speed, due to the high level of gunk friction between them.

The fix is to dismantle the transducer and and clean. I have a pdf set of instructions on this is you would like it, email me at cdowns@clear.net.nz and I will send it to you.

Cheers

Kiwi Chris



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7/18/10 7:47pm - Reply: 'cruise control'
dskopp
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

Joined: 5/21/2008
Posts: 1956
Good info about the cruse control.  I am having the same problem at times.  I may need to get that pdf file from Kiwi Chris !!
Dan
dskopp2010-07-18 16:48:36

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7/18/10 7:50pm - Reply: 'cruise control'
Warp2
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Henderson, NV - USA

Vette(s):
1982 Coupe,ZZ383/425HP,Tremec 5 Speed, 354 Dana,VBP Pro Comp dual Mount Suspension, Steeroids Rack & Pinion. Affiliation: Yakima Valley Vettes

Joined: 11/16/2007
Posts: 48
Hi guys,
Sorry to bust in on your post but just got back from the gathering in Bend ORThumbs Up, and my right right foot is asleep from holding the accelerator. I saw your post CeeDee & Babyblue 78 about the cruise control. I have been working for  about 3 months trying to make mine work on my 82. Mine does the same exact thing.  CeeDee could you please send me that pdf file also also. Thanks
My email is m_lower@msn.com 


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warp 2
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7/19/10 4:07am - Reply: 'cruise control'
CeeDee
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, - New Zealand

Vette(s):
Silver '81 mostly original C3. Silver interior, bilstiens, big sway bars, headers.

Joined: 3/26/2005
Posts: 231
Four lots of PDF & pix now emailed out !   Anyone else ??  Embarrassed

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Kiwi Chris

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7/19/10 12:45pm - Reply: 'cruise control'
Warp2
Former Member
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Henderson, NV - USA

Vette(s):
1982 Coupe,ZZ383/425HP,Tremec 5 Speed, 354 Dana,VBP Pro Comp dual Mount Suspension, Steeroids Rack & Pinion. Affiliation: Yakima Valley Vettes

Joined: 11/16/2007
Posts: 48
Thanks CeeDee I'm going to give this a try.
 
Mark


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warp 2
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7/25/10 11:37am - Reply: 'cruise control'
dads2vette Lifetime Member
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Ash Fork, AZ - USA

Vette(s):
1981 Red Interior White exterior

Joined: 4/18/2007
Posts: 1038
Ya gotta love this forum!
 
Cee Dee, could you send me those files and pics?
 leave out the space between 2 and @
Thanks,


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7/25/10 3:53pm - Reply: 'cruise control'
Babyblue 78
Former Member
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Vette(s):
1978 Corvette Light Blue Pulled from the swamps of Miami! Its a driver and back on the road!

Joined: 12/3/2007
Posts: 262
Thanks CeeDee I have just read the second edition and it is excellent. I think I will wait until the fall to get started on it but maybe not.  I appreciate all your help and I think one of the steps will be my problem with my rocket takeoff!  Thanks again. BB78Smile

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7/25/10 4:00pm - Reply: 'cruise control'
lukesvette Lifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.

Joined: 5/18/2004
Posts: 6804
Unfortunately I sold everything in a milk crate at a swap meet once I went the "resto-rod" route with the Lukester...one of these days, I'll look into an after-market set up...

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7/31/10 8:18pm - Reply: 'cruise control'
Babyblue 78
Former Member
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Vette(s):
1978 Corvette Light Blue Pulled from the swamps of Miami! Its a driver and back on the road!

Joined: 12/3/2007
Posts: 262
Ok so Saturday morning my son and I decide it's time to remove the transducer and give CeeDee's instructions the go.  Ok we get the transducer out ok and get to step 3 in the instructions and its where you open up the transducer and one side/part should have the ceramic magnet and the metal coil and the rubber clutch with the centering rod....Well mine was missing..Cry. no rubber clutch no coiled spring and no pin... See I told you I bought this corvette from the gator guy in the swamps of Florida..Thumbs Down..How people destroy a nice car like a Vette.  So I could not go any further on CeeDee's instructions which I was excited to accomplish since he had everything so well done.  Earlier before I received the CeeDee's manual I had purchased a new transducer because I was not going to even attempt to clean it.  Well now I don't think it's worth my time to hunt down the missing parts.If Carlise Car show was next week maybe but I would miss drivnig my car...Ok so now you know the rest of the story!!!!Disapprove  BB78 Will let you know how the new one works!

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8/1/10 10:20am - Reply: 'cruise control'
rraider1
Former Member
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152
AUDIOVOX
I am not sure how far you are into this, but when I first bought mine I started down this line. If you are not trying to keep everything original you can install this kit and it will work better than the original cruise system. I located the control on the center console, can control the speed up or down at your finger tips. I have installed 3 of these in my cars and have not had a lick of trouble. the one in my vette has been in for 10 years. I never did the research to hook it in to the Tach I installed the pick up on the drive line

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Bob R
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10/13/13 3:53pm - Reply: 'Re: cruise control'
Reds82CE Lifetime Member
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McKinney, TX - USA

Vette(s):
1982 Collector Edition, Silver-Beige metallic, 40000 miles and counting. 2015 Z51 Red Convertible

Joined: 4/8/2005
Posts: 182
CeeDee, would you send me your PDF to clean the transducer.... kjgcsmith@gmail.com

My 82 original failed about 14 months ago and I replaced it with one from CC and now it is starting the same problems (jumpy speedo at 0 to 15 mph and jumping in initial speed when setting).  I kept my original and will clean it.

Has anyone found a supplier for new internal parts if I need to rebuild?????

Thanks 


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10/13/13 10:34pm - Reply: 'Re: cruise control'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

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