gear changing early

Engine, Transmissions, Drive train, & Lubrications.
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Glyn Ruck
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Re: gear changing early

Post by Glyn Ruck »

That OD looking solenoid is standard on the DG. As said above the intermediate speed hold.
1965 Jaguar 3.8 S Type, Sync4, OD, PAS, BRG/Biscuit on chrome wires.
http://www.jagstyperegister.com/forum_n ... ?f=3&t=152
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John Quilter
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Re: gear changing early

Post by John Quilter »

Yes, it is the intermediate speed hold for the DG automatic gearbox. Biggest issue I have heard of with these is leakage. There is an bellows inside that protects the solenoid from transmission fluid and this can perish. The good news is, this one looks pretty leak free from the picture.
1965 3.8S MOD, 1990 XJ6, 1960 Morris Minors X2, 1951 MGTD, 1969 Austin America
badger
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Re: gear changing early

Post by badger »

NigelW wrote: Sun Aug 01, 2021 2:03 pm Looking at the wiring diagram on this site the yellow/purple and green go to the anti creap switch and the yellow /red goes to the solenoid. Unfortunately I can't verify this on my car as I put the DG box in the skip decade's ago.
has anyone got a photo of this area ,or can get me one so i know where they all go ????
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Orlando St.R
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Re: gear changing early

Post by Orlando St.R »

Here's a pic of the underside of mine. Not sure how useful it will be. My anti-creep solenoid is hydraulically disconnected - somewhat crudely I admit. Apparently they were fitted because drivers were not used to cars moving without them touching any pedals! How quaint!

dg250 wiring.jpg
dg250 wiring.jpg (1.41 MiB) Viewed 2937 times
1965 Jaguar 3.8S RHD DG Auto, Opalescent Maroon/Beige Leather, Varamatic PAS - one-family-owned from new
badger
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Re: gear changing early

Post by badger »

Orlando St.R wrote: Thu Aug 05, 2021 3:39 pm Here's a pic of the underside of mine. Not sure how useful it will be. My anti-creep solenoid is hydraulically disconnected - somewhat crudely I admit. Apparently they were fitted because drivers were not used to cars moving without them touching any pedals! How quaint!


dg250 wiring.jpg
many thanks for the photo and from what i can tell its (from top downwards) green then fat yellow red on the one unit and then thin yellow red on the longer unit on its own..
i don't surpose you could check and confirm for me (pretty please)
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