Sppedometer Inop

Clutch, transmission, rear axle

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wartmeister
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Sppedometer Inop

Post by wartmeister »

F100 IL6 240cid 3 spd manual RAN E1 transmission (K078684)

At the final stages of a total rehab. Transmission is original and was not rebuilt. New speedometer cable, drive gear, and gauge.

Problem: Speedometer inop. Did all the typical troubleshooting...cable is seated on both ends and everything works fine with a drill on the transmission end. Inserted the cable into the tranny for a test drive and indicated steady zero on the speedometer at all speeds. No indications of transmission issues.

When I put my finger into the hole where the cable connects to the transmission, it seems that the internal gear is offset a little bit to the rear/right which could keep the speedometer drive gear from seating with the gear inside the transmision. Is this possible? If so, does anyone have a remedy short of transmission teardown?
mmerlinn
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Re: Sppedometer Inop

Post by mmerlinn »

First, what does Lnop mean?

Most likely the drive speedometer gear is not located in the correct position. Maybe a missing/broken snap ring/clip. Another possibility is that the drive speedometer gear is turning on the shaft indicating a missing clip/ball. You will need to remove your tail housing and check your drive speedometer gear.
mmerlinn (http://mmerlinn.com/catalog/makeridx.htm)

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tsherry
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Re: Sppedometer Inop

Post by tsherry »

"Inoperative"
too many Fords, no where near 'nuff time.

or, money.
wartmeister
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Re: Sppedometer Inop

Post by wartmeister »

Sorry...aviation jargon. INOP = inoperative = doesn't work at all. And i guess I need to check spelling better.

Will get the tail housing off next week and get back. Thanks.
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sparky72
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Re: Sppedometer Inop

Post by sparky72 »

LNOP is a California term. It means, “Like, not operational.” :wink:
Taylor
1972 F250 Ranger XLT 2wd / 8100 GVW / 390 / T18 / 3.73 D60
wartmeister
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Re: Sppedometer Inop

Post by wartmeister »

Hah!

i know its been a while. I had difficulty getting the transmission tail section removed. When did, it was easy to see the problem. the 3/26" ball bearing and snap ring that held the speedometer drive gear in place were both missing. Got'em, installed them and all works as it should. Thanks for the assist.
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sargentrs
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Re: Sppedometer Inop

Post by sargentrs »

Congratulations! 8)
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
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