85 Chevy Dolphin
First post, so please be gentle if this has been asked already. I searched, I promise! I recently bought a 1985 Dolphin on a Chevy chassis. It is a 24' slice of heaven except that after I bought i...
Forum Discussion
Isn't it supposed to spin faster as your drive faster? OK, silly me, I suppose you have a speedometer problem. Good thing is that it IS simply a Chevy Van. Are you able to tinker with it to any extent? I'm not a shop, but I'd wonder if the speedometer cable from the transmission to the instrument panel needs a cleaning and lubrication. It may connect to a cruse control with one cable then to the speedometer with a second one.
What I want to warn about is this: We had an Olds Cutlass of that vintage. Somewhere in/near the speedometer was a little spinner-looking thing. Not the one that moves the speed needle, an additional one. Turned out it fed a sensor that went back into the engine control system. When I cleaned/lubed the speedometer cables, the needle stabilized but so did the engine. Got the little "lope" that it had around 45-mph to go away.
Anyhow, being "Dolphin" doesn't matter co a Class C. Still Chevy, and that's a strong feature about Class C's. They don't have the cobbed-up chassis-dash wiring that plagues Class A's, particularly older ones.
And Tom, whatcha doin' up in the middle of the night? You're as bad as I am...
EDIT: The thing I called "spinner" looked like a little MIRROR. It was optical feed back to the engine control.
GM systems like ignition were centrally developed. By that I mean the same concepts applied to most similar purposes. So if our Olds wit a 3.8 Buick V6 had that little mirror, there's a good chance if lots of Chevys with V8's did too. If you chose to drive it with the speedometer disconnected it might not run well at all...
What I want to warn about is this: We had an Olds Cutlass of that vintage. Somewhere in/near the speedometer was a little spinner-looking thing. Not the one that moves the speed needle, an additional one. Turned out it fed a sensor that went back into the engine control system. When I cleaned/lubed the speedometer cables, the needle stabilized but so did the engine. Got the little "lope" that it had around 45-mph to go away.
Anyhow, being "Dolphin" doesn't matter co a Class C. Still Chevy, and that's a strong feature about Class C's. They don't have the cobbed-up chassis-dash wiring that plagues Class A's, particularly older ones.
And Tom, whatcha doin' up in the middle of the night? You're as bad as I am...
EDIT: The thing I called "spinner" looked like a little MIRROR. It was optical feed back to the engine control.
GM systems like ignition were centrally developed. By that I mean the same concepts applied to most similar purposes. So if our Olds wit a 3.8 Buick V6 had that little mirror, there's a good chance if lots of Chevys with V8's did too. If you chose to drive it with the speedometer disconnected it might not run well at all...
