Which speedo cable?

[Sirocco]

Any experts here?

Not long bought my series 2a and the speedo never worked. Turns out it's snapped. To confuse matters it is a series 3 chassis and I think gearbox.

The back of the gauge is a screw connection and the gearbox end has the Round plate with 3 screw holes. From looking on google all series 3 cables have a clip on the gauge end and all series 2 cables don't have the round mounting plate at the gearbox end.

Am I missing something? Am I over complicating this? What have others done.

Thanks guys.

G

[harry]

If you can get both pieces of the broken cable out, it's not hard to find a speedo mob in Melb to make a new one.h

And I mean the inner cable, not sure from your post if the outer is broken also

[gromit]

Not sure exactly how it mounts at the gearbox end on a IIa, I'll have to have a look.

Getting a cable made could be relatively expensive, cheaper option would be to fit a secondhand S3 speedo and then you can get a cable from any of the LR parts suppliers.


Colin

[JDNSW]

The difference between the Series 3 and Series 2 cables are:

1. Series 3 cable is longer, has clip on to speedo

2. Series 1/2/2a cable is shorter and screws onto speedo.

Gearbox end is identical.

Note that 6 cylinder cables are slightly longer, V8/Isuzu Stage 1 cables different gearbox end.

Sounds like you have a Series 2a cable and speedo.

Note that the speedos are interchangeable between Series 2a and 3, if you use the appropriate cable (the extra length is not a problem with the S3 cable in S2a, but the 2a cable into a 3 will be too short.

The speedos have different gearing, according to whether they are intended for 6.00 or 7.50 tyres, and there are a surprising number of different speedos apart from this - with or without warning lights, with and without trip odometer, kph or mph, and the six cylinder ones go to a higher speed.

John

[Sirocco]

The difference between the Series 3 and Series 2 cables are:

1. Series 3 cable is longer, has clip on to speedo

2. Series 1/2/2a cable is shorter and screws onto speedo.

Gearbox end is identical.

Note that 6 cylinder cables are slightly longer, V8/Isuzu Stage 1 cables different gearbox end.

Sounds like you have a Series 2a cable and speedo.

Note that the speedos are interchangeable between Series 2a and 3, if you use the appropriate cable (the extra length is not a problem with the S3 cable in S2a, but the 2a cable into a 3 will be too short.

The speedos have different gearing, according to whether they are intended for 6.00 or 7.50 tyres, and there are a surprising number of different speedos apart from this - with or without warning lights, with and without trip odometer, kph or mph, and the six cylinder ones go to a higher speed.

John

Thanks John, RTC3484 it is then. Why would the 2a cable be to short? I would like to stick with the speedo in it as it looks to be a refurb one. Or at least it's in good condition.

Strangely the cable that is in it looks quite new and is to long. I wonder if the PO had a crack at it? Maybe with a 6cyl cable. Hmmm.

G

[gromit]

Gearbox end is identical.



Just had a look in the shed.
Series III cable has the plate with three holes assembled onto the cable, Series II/IIa doesn't. Is this because the plate can be slipped over the speedo end of the Series II cable whereas the III it has to be supplied with the cable because the speedo end connection is bigger ?


Colin

[harry]

Not sure exactly how it mounts at the gearbox end on a IIa, I'll have to have a look.

Getting a cable made could be relatively expensive, cheaper option would be to fit a secondhand S3 speedo and then you can get a cable from any of the LR parts suppliers.


Colin

If your cable is connected at the gearbox and the speedo, then the inner cable is broken, as I believe you mean, then getting a new inner made is easy and shouldn't be too expensive, you do not have to change the outer cable

[Sirocco]

Just had a look in the shed.
Series III cable has the plate with three holes assembled onto the cable, Series II/IIa doesn't. Is this because the plate can be slipped over the speedo end of the Series II cable whereas the III it has to be supplied with the cable because the speedo end connection is bigger ?


Thanks Colin, Hopefully I can re-use the plate then, sound logical


If your cable is connected at the gearbox and the speedo, then the inner cable is broken, as I believe you mean, then getting a new inner made is easy and shouldn't be too expensive, you do not have to change the outer cable

Inner def snapped off. About 2" from the speedo end. I thought about cuting it back but how do you make the end square? Not sure where to take it either so for ?4 I'm going to get a new one. I have an order with Paddocks on the go so I can tack it on.

Thanks,

G

[JDNSW]

Thanks John, RTC3484 it is then. Why would the 2a cable be to short? I would like to stick with the speedo in it as it looks to be a refurb one. Or at least it's in good condition.

Strangely the cable that is in it looks quite new and is to long. I wonder if the PO had a crack at it? Maybe with a 6cyl cable. Hmmm.

G

The Series 3 speedo is in front of the driver and higher, the Series 1/2/2a is in the middle. Since the cable exits left from the gearbox, this means it is further to the S3 speedo. And, just for completeness, on the six the gearbox is further back.

When changing the cable, at the gearbox end the little screws are a pain, especially if you have an overdrive. And don't lose them, they are BA, and can be a bit hard to replace.

John

[Aaron IIA]

When changing the cable, at the gearbox end the little screws are a pain, especially if you have an overdrive. And don't lose them, they are BA, and can be a bit hard to replace.

John

I will second that. Use an appropriate size 1/4 drive socket, and hold the screw into the socket with grease.

Aaron

[Johnno1969]

When changing the cable, at the gearbox end the little screws are a pain, especially if you have an overdrive.
John

My speedo cable went a while back and I am procrastinating about changing it.... Waiting until I take the overdrive out for a strip-down and check. It's a pain in the proverbial getting at those three little screws with the Fairey hanging next to them....

[groucho]

There is a real easy way to put those screws back in. Get a long screwdriver. get some plastic tube the kind that they used to cover electrical wires. the right size that is a neat fit over the screw head slide it over the shaft of the screwdriver slide it to the end to capture the screw head bingo screw it in and you wont drop the screw ..easy..........

[JDNSW]

There is a real easy way to put those screws back in. Get a long screwdriver. get some plastic tube the kind that they used to cover electrical wires. the right size that is a neat fit over the screw head slide it over the shaft of the screwdriver slide it to the end to capture the screw head bingo screw it in and you wont drop the screw ..easy..........
.....as long as no overdrive is fitted!

John

[Sirocco]

Cable ordered, no overdrive and transmission brake removed �� Easy access.

Next step is to see if I can reuse the round plate on the new cable.

G

[Aaron IIA]

I may have needed to enlarge the hole in the old plate to get it to fit onto the new cable.

Aaron

[67hardtop]

Hi Aaron, that round plate usually comes with the new cable mate.

Cheers Rod

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[Dark61]

There is a real easy way to put those screws back in. Get a long screwdriver. get some plastic tube the kind that they used to cover electrical wires. the right size that is a neat fit over the screw head slide it over the shaft of the screwdriver slide it to the end to capture the screw head bingo screw it in and you wont drop the screw ..easy..........
I hang most of my screwdrivers on the magnets on old hi-fi speakers - doesn't take long to magnetize the ends and holds the screws fine.
cheers,
D

[Aaron IIA]

Hi Aaron, that round plate usually comes with the new cable mate.

Cheers Rod

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Didn't for me.

Aaron

[67hardtop]

Hmmm? Both speedo cables i bought came with the riund retainer plate that holds the cable into the trans case with the 3 screws

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[mick88]

Rod is correct!
The complete cable comes with the plate fitted.





Oops! Just read "Grommet's" post, you must have a 2A cable!


Cheers, Mick.

[Sirocco]

Just to clear this up as most haven't read the whole post.

If you have a screw on series 2 gauge and a series 3 box you need RTC3484 with the screw end. Don't throw your old cable out until you remove the retaining ring from the gearbox end and put it on the new cable, it just went straight on. 10 minute job and I have a new speedo cable. Not tested it yet though as I'm rebuilding propshafts.

G

[mox]

Thanks John, RTC3484 it is then. Why would the 2a cable be to short? I would like to stick with the speedo in it as it looks to be a refurb one. Or at least it's in good condition.

Strangely the cable that is in it looks quite new and is to long. I wonder if the PO had a crack at it? Maybe with a 6cyl cable. Hmmm.

G Check this possibility: A possible explanation for problem with a cable that looks quite new and too long. Whoever made this cable possibly used the type with left hand twist that is intended for use with the not so common speedos or tachos with the figures on the dial increasing in anti clockwise direction. If this is used in those with normal clockwise configuration - or the common clockwise cable is used for driving anti clockwise type instruments, they may work well until for some reason eg kinking or lack of lubrication, there is more than normal resistance. The correct cable simply winds itself tighter while overcoming this. However, the wrong ones unwind themselves, jam and break.

[Sirocco]

Check this possibility: A possible explanation for problem with a cable that looks quite new and too long. Whoever made this cable possibly used the type with left hand twist that is intended for use with the not so common speedos or tachos with the figures on the dial increasing in anti clockwise direction. If this is used in those with normal clockwise configuration - or the common clockwise cable is used for driving anti clockwise type instruments, they may work well until for some reason eg kinking or lack of lubrication, there is more than normal resistance. The correct cable simply winds itself tighter while overcoming this. However, the wrong ones unwind themselves, jam and break.


Interesting Mox. I think this one broke because they had forced a 90 degree angle through the bulkhead. I will try this new one and see how I go. If it breaks again I will be back here asking questions!

Thanks.

G

[67hardtop]

Just make sure you route the cable correctly as per the original workshop manual. Its amasing where they mount the cable. I found my cable to be too long until i looked in the book and mounted it as per the manual and it fitted perfectly.

You dont need the propshafts on to test the speedo, just make sure the handbrake drum is bolted to the flange and start her up and put her in gear, you dont need 4wd, and the speedo should work without any propshafts on.

Cheers Rod

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