Rev Counter Drive Gearbox Power/Super Major
Posted: Wed Oct 19, 2016 4:45 pm
Known in the Parts List as Gear (Tachometer) Assy, Part no E1ADKN - 17373C, the listing for tractors is quite confusing. Even more so is trying to obtain an original pattern drive gearbox (the one that is driven off the FIP drive shaft on Majors with rev counter up under the steering wheel and up to the introduction of those with the Minimec mechanically governed FIPs). I have tried to rebuild a number of old ones, with limited success, as they all suffer from similar failures (bearings worn out). A parts dealer from the Midlands advertises an original looking replacement on fleabay, but on the 2 occasions over the last 18 months that I have ordered one, he has never been able to produce the item. (despite the listing stating 3 or so available) I have then spent months trying to get my money back.
I finally gave up and bought the pattern part from a well known dealer at the Newbury Show recently. Firstly you have to shorten the two 1/4in UNC fixing screws to fit the thing. One is be longer than the other. The design of the casing is such that you cannot get a ring spanner, or socket onto the head of the bolts properly to screw the rev counter gearbox down securely. Then, to my disgust, I found that my (new) rev counter cable did not reach far enough into the new rev counter drive gearbox to engage into the driven shaft.
As Brian has stated so many times, why are we at the mercy of these idiots who make these pattern parts that don't fit, or work correctly. The only solution I can see is to cut about 8mm off the threaded end of the "crappern" rev counter drive, so that my inner cable will reach the driven part. Complaints to the manufacturer only seem to get the response; "We've sold loads of these and no-one else has complained". Anyone come across a source for the correct rev counter drive gearbox, I still need one for my Aug 1960 Super Major.
Tim E
I finally gave up and bought the pattern part from a well known dealer at the Newbury Show recently. Firstly you have to shorten the two 1/4in UNC fixing screws to fit the thing. One is be longer than the other. The design of the casing is such that you cannot get a ring spanner, or socket onto the head of the bolts properly to screw the rev counter gearbox down securely. Then, to my disgust, I found that my (new) rev counter cable did not reach far enough into the new rev counter drive gearbox to engage into the driven shaft.
As Brian has stated so many times, why are we at the mercy of these idiots who make these pattern parts that don't fit, or work correctly. The only solution I can see is to cut about 8mm off the threaded end of the "crappern" rev counter drive, so that my inner cable will reach the driven part. Complaints to the manufacturer only seem to get the response; "We've sold loads of these and no-one else has complained". Anyone come across a source for the correct rev counter drive gearbox, I still need one for my Aug 1960 Super Major.
Tim E