Hicap phill
Well-Known Member
Thought small drive cable went to transducer,this generates a pulse which is sent to the speedo head via electric cables.
(Been ages since I have had RRC)
doodle bug
Well-Known Member
Your right ! I'm starting to think the wiring is the problem ! I can't do anything with it until weekend due to work
discool
Well-Known Member
Depending on the model year... my 3.5 RR 1987MY had a direct drive.
Then the 1990MY 3.9 with the Borg T box was around. so if Land Rover now decided to fit a a transducer which there are two versions (like the disco 3.9) either a short direct drive from the T box to an inline transducer mounted on the chassis and onwards with an electrical connection to the dash, later versions the transducer is bolted directly to T box so no short direct drive.
The EFI ECU also receives pauses from the transducer so any issues with that I assume that the EFI would also be affected.
Then the 1990MY 3.9 with the Borg T box was around. so if Land Rover now decided to fit a a transducer which there are two versions (like the disco 3.9) either a short direct drive from the T box to an inline transducer mounted on the chassis and onwards with an electrical connection to the dash, later versions the transducer is bolted directly to T box so no short direct drive.
The EFI ECU also receives pauses from the transducer so any issues with that I assume that the EFI would also be affected.
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doodle bug
Well-Known Member
I think You've just solved the problem ! I checked the short drive from the trans to the transducer which is ok... I did notice the motor cut out a few times at low revs ? So maybe I changed a bad transducer for another bad one ????
doodle bug
Well-Known Member
Sorted ! another speedo cured the problem !!!! anyway thanks to everyone who replied ..
