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Author Topic: Diesel runs but won't rev up.  (Read 37633 times)

Reply #30January 10, 2012, 03:06:47 pm

ORCoaster

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    Restoring a Caddy as time and weather allows
Re: Diesel runs but won't rev up.
« Reply #30 on: January 10, 2012, 03:06:47 pm »
I have a spare pump that does exactly as described.  All or idle, nothing in between.  Some wear on the four little tabs that are spun around by the pump but otherwise couldn't see why I was not fuelling as normal.

Can someone have success in solving this trouble for us?
« Last Edit: January 22, 2012, 07:53:08 pm by ORCoaster »

Reply #31January 22, 2012, 07:48:17 pm

vdubspeed

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Re: Diesel runs but won't rev up.
« Reply #31 on: January 22, 2012, 07:48:17 pm »
Sounds just like the accelerator lever is not indexed to the shaft correctly.  Pull the lever, rotate the shaft CCW until you feel spring tension and then let the shaft return gently.  The return spot is usually 1 spline too far for idle.

WINNER!

I've been gone for two weeks and today I went to start it...instant start. So I pull the accelerator lever and it was WAY off.

So I removed the lever and got it running. When I rotated the shaft I noticed a dead zone and then it TOOK off!!! Yeah...run away diesel!!! After it ran away on me two times I decided to pull the max fuel screw back. I had it set at the factory stop but for all I know it wasn't the factory screw/stop. So after I pulled it back and turned the shaft...I got it running again.

After messing with the fuel screw, accelerator shaft and idle stop, I had it idling and revving perfectly. A quick trip around the block and it ran PERFECT!!! Still pours a cloud of black smoke so I'm sure I could pull the fuel back a little more too. I'm just so damn happy it was such a simple fix.

This car/motor was never bought to drive but damn...I can't see myself ripping it apart just yet since it's an early westy, diesel, has a/c/heat and runs like a scolded dog!

Thanks everyone,

Jason

Reply #32January 23, 2012, 06:49:30 pm

8v-of-fury

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Re: Diesel runs but won't rev up.
« Reply #32 on: January 23, 2012, 06:49:30 pm »
Jason, do everything in your power to keep this one whole :)

You do good work, this thing is lucky to have happened in to your hands :D.

Reply #33January 24, 2012, 06:18:55 pm

vdubspeed

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Re: Diesel runs but won't rev up.
« Reply #33 on: January 24, 2012, 06:18:55 pm »
Jason, do everything in your power to keep this one whole :)

You do good work, this thing is lucky to have happened in to your hands :D.

You will be happy then. This car is getting sold to a local friend who will breathe incredible amounts of life into it. :D

 

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