Rack adjustment gauge

bcwayne
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15 years 8 months ago #20069 by bcwayne

Rack adjustment gauge was created by bcwayne

I just finished setting the fuel injection pump lift settings on a 4U D-2.... now I would like to check the fuel rack adjustment... Can someone please post a picture and/or Cat part number for the gauge used to do this. Thank You, Wayne

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SJ
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15 years 8 months ago #20070 by SJ

Replied by SJ on topic Gauge

The Cat rack setting gauge is a 3H1690 and you set it in where the an inj. pump is removed and is timed like the pumps by lining up the notches so is very easy to use and set up. If your engine has a 9F4113 nozzle the setting is .285 and with a 4F4236 nozzle it,s .215 and the high idle for it is 1690 RPMs and with the 9F4113 nozzle it,s 1710RPMs. Both are 550 RPMs idling

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Old Magnet
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15 years 8 months ago #20071 by Old Magnet

Replied by Old Magnet on topic Rack adjustment gauge

Hi bcwayne,
The 3H1690 tool is pretty pricey....over $300 as I recall.
I do have one you could borrow if you like, along with instructions.

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bcwayne
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15 years 8 months ago #20074 by bcwayne

Replied by bcwayne on topic Rack adjustment gauge

Thanks SJ and OM.... OM, I"m returning Don's pump lift adjustment tool later today. I'll be in touch when I'm ready to do the rack. Thanks for the offer, Wayne

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SJ
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15 years 8 months ago #20076 by SJ

Replied by SJ on topic Setting

If the setting has not been touched then it should be ok if the tractor ran ok before.It is bolted and a lock on the shims and flat spring that the stop arm goes up against.

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bcwayne
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15 years 8 months ago #20077 by bcwayne

Replied by bcwayne on topic Rack adjustment gauge

FYI for those interested in this tool... I just called Cat and found that the last listed price for the tool is $ 377.00, and it is discontinued and unavailible.

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Old Magnet
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15 years 8 months ago #20078 by Old Magnet

Replied by Old Magnet on topic Rack adjustment gauge

That's true they rarely change but worth a check. The biggest hazard is when parts get changed from some other engine.

When ever your ready:)

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