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Engine Specific Info and Questions => IDI Engine => Topic started by: 745 turbogreasel on December 06, 2009, 08:39:42 pm

Title: Return spring?
Post by: 745 turbogreasel on December 06, 2009, 08:39:42 pm

(http://i492.photobucket.com/albums/rr281/regcheeseman/PUMP/pump007.jpg)
The one labeled "return spring " in this picture;
My pump doesn't seem to have it.
i know it's been opend before, as there are no safety wires anywhere.
I know it was running because the donor car had Tbelt failure, and broken cam.

Do I need it?
Doesn't look like Cummins thinks so...
(http://i290.photobucket.com/albums/ll276/1stGen545/HPIM1738.jpg)

What do you think? Or better, do you know for sure?

Pump # is 460 406 044, Volvo D24T

Title: Re: Return spring?
Post by: Vincent Waldon on December 06, 2009, 08:41:41 pm

Pretty sure that's the fast-idle spring, on pumps so equipped.

If your particular pump doesn't have the fast idle lever you don't have it, or need it.  ;)

Title: Re: Return spring?
Post by: 745 turbogreasel on December 06, 2009, 08:48:59 pm

Good news :D
My car uses a water operated  bit of junk  to seize up and not deliver fast idle by not moving the external throttle arm.