PTO - Dates & Serial Numbers

[ellard]

Hi there all

I picked up another complettte LWB PTO unit the other day - it was salvaged from a very early Series II Diesel (the chasis was beyond repair)

QUESTIONS

Is there a record of PTO & serial numbers which can be related to the year of build.........

All the best

Wayne

[Lotz-A-Landies]

No it not easily possible to date a PTO from its number. The reason is that the numbers are in a single series based on the 1948 "86" sequence. Basically if the number is around 862??? you are looking at something late SI or SII/SIIa.

[Bundalene]

There is a PTO for sale on Ebay presently with the following information

QUOTE The first 400 rear PTO units from 860001 had a 10 spline output shaft but to conform to the SAE standard, this was soon changed to 6. The early casings also had the breather positioned over the input gear. The breathers then moved to the side, like you see on this example. In January 1968 the aluminium bearing housings were replaced with a stronger steel equivalent.

This example, with the serial number 873817 with the aluminium bearing housings, was probably manufactured towards the end of Series 1 production. End of Quote


I have just come across a PTO with the Serial number 860803. Does anyone know if this may be off an 80 inch. The chap I got it off has had it in his garage for over 30 years and doesn't remember which vehicle it was off as they had many in the early days.


Erich

[Lotz-A-Landies]

<snip>

This example, with the serial number 873817 with the aluminium bearing housings, was probably manufactured towards the end of Series 1 production.

I have just come across a PTO with the Serial number 860803. Does anyone know if this may be off an 80 inch. The chap I got it off has had it in his garage for over 30 years and doesn't remember which vehicle it was off as they had many in the early days.

ErichErich it is quite possibly an 80" originally, the sequence while it begins with 86 (1948 models) the sequence continued into the SIIa production. However it seems that the PTO (output on gearbox) was a common fitting on 80" more than any later model so the 803rd is likely off an 80". The PTO on the rear cross member were less common, but 803 still probably came off an 80"or possibly an 86" if it came from the parts chain.

IMHO the ad is wrong and the PTO 873817 more likely to have been produced well within SIIa production.