Speedo

[Gavin3659]

Hi

Having realised that my fuel tank sender is incompatible with my speedo, I started looking at my speedo and seen that the tpm is 1376. My question is which speedo should I have? I know this speedo is a replacement. The car has a series 2 chassis number (fae11/411445) but has a 948cc engine (8G163a and N57756 are the numbers on engine). The diff has mowog on one side and BTA548 on the other. The tyres are 155/65 14. I apologise if this is too much info or not the right info. All help appreciated so I can fit a more accurate speedo.

Thanks Gavin

[bmcecosse]

155/65 is a strange tyre for a Morris 1000 ! I hope not on the standard 3" wide wheels. You have the 4.22 final drive so the tpm is near enough for normal tyres (145x80) - but you will need to compare rolling circumference of your tyres to the 145x80 tyres. Just check the speed against the sat nav on your phone !

[Gavin3659]

Thanks for your reply. I will compare tyres and check the speed next time I'm out.

[Gavin3659]

The tyres I have give a larger circumference and diameter by 5.5% thanks

[bmcecosse]

Larger ? Even though they are lower profile......... I'm surprised. But 5% either way is well within normal 'tolerances' on Minor speedos !

[Gavin3659]

I apologise. I misread the results. The proper tyres would be 5.5% bigger.

[Gavin3659]

As a follow up to this, could anyone tell me what colour of speedo my car would of had origionally and what the tpm would have been please? This is just for curiosity as i am quite happy with the one i have. Cheers Gavin

[LouiseM]

Take a look at the 'speedo identification' info about a third of the way down the page here: http://potteries.mmoc.org.uk/Identify.htm

[Gavin3659]

Thanks Louise