My LHD conversion latest.
Posted: Sun Aug 02, 2009 11:26 pm
Hello, all. I've been rather busy but I have finally sat down to have a look at what's going on in Moggieland!
Firstly, Watford Classic Cars, St Albans, can supply a RHD spridget rack for 60 GB quid, no exchange. Maybe it's less if you give them back a Moggie rack....you'd have to ask. Very nice service. I have no affiliation with this company.
However, me being me, I have decided not to go down the easy route, for several reasons. Firstly, I have two Minors needing racks, so that would cost me 200 quid using the services of Watford Classic Cars (postage to Poland is 40 quid each).
Secondly, because I have a friend with a lathe here, I can carry out my plan at very low cost.
Thirdly, I love messing about - a great way to learn!
So, here is the plan.....as yet in it's formative phase.
Take a standard Minor RHD rack and 'flip' it. Take out the pinion and slacken off the large bolt which holds the adjacent rack tensioner spring and plunger. Re-insert the pinion upside down. Screw in the tensioner to take up most of the free play. Even without the two necessary modified bushes in place, this works just dandy......except fot the angle of the column coming up from the floor. The steering wheel ends up towards the speedo, rather than towards the door!
Never mind. In Poland I can get a shaft with universal joints at each end from a Fiat 126p steering column assembly. This will be used to connect the Minor column to the rack, by shortening the column shaft and doing some carefully-thought-out welding with a 'tube sleeve' over the join just to make sure. A second mounting point will be needed for the column outer tube, but that's a simple operation. I have a spare column clamp, which I can use at the bottom of the outer tube. I get the feeling I may need to weld a steel plate into the inner dash area to provide a rigid mounting point in the optimum place.
Having said all that, I think a shaft with a single universal joint would be better than a shaft with the two. I am researching this on the web. A single universal joint seems good up to 35 degrees of deflection, which seems way more than enough.
It works out that what was the bottom pinion bush can be 'lathed' and reamed out to become the top pinion bush. It's a simple matter to make the new bottom bush. I plan to make a plug to hold and seal this from an engine block core plug - I'll angle-grind it to the right size and tap into place with a sharp hammer blow. I once had to reduce the size of a core plug using a hand file!
Any comments and observations would be most welcome. Personally, I am satisfied that the modification will be totally safe. An advantage of doing is actually improved safety.......the universal joint and shaft should collapse in the event of a severe head-on collision, and the steering wheel not be forced up towards the driver's upper body.
By the way, a quick tip. I took the steering column to pieces, because I had never done this and was curious. Also, there was free play between the shaft and the upper felt bush. The remedy - simplicity itself! Just take out the felt bushes from the column outer tube, oil them, turn them inside out, and put them back in! Snug as the proverbial bug!
Firstly, Watford Classic Cars, St Albans, can supply a RHD spridget rack for 60 GB quid, no exchange. Maybe it's less if you give them back a Moggie rack....you'd have to ask. Very nice service. I have no affiliation with this company.
However, me being me, I have decided not to go down the easy route, for several reasons. Firstly, I have two Minors needing racks, so that would cost me 200 quid using the services of Watford Classic Cars (postage to Poland is 40 quid each).
Secondly, because I have a friend with a lathe here, I can carry out my plan at very low cost.
Thirdly, I love messing about - a great way to learn!
So, here is the plan.....as yet in it's formative phase.
Take a standard Minor RHD rack and 'flip' it. Take out the pinion and slacken off the large bolt which holds the adjacent rack tensioner spring and plunger. Re-insert the pinion upside down. Screw in the tensioner to take up most of the free play. Even without the two necessary modified bushes in place, this works just dandy......except fot the angle of the column coming up from the floor. The steering wheel ends up towards the speedo, rather than towards the door!
Never mind. In Poland I can get a shaft with universal joints at each end from a Fiat 126p steering column assembly. This will be used to connect the Minor column to the rack, by shortening the column shaft and doing some carefully-thought-out welding with a 'tube sleeve' over the join just to make sure. A second mounting point will be needed for the column outer tube, but that's a simple operation. I have a spare column clamp, which I can use at the bottom of the outer tube. I get the feeling I may need to weld a steel plate into the inner dash area to provide a rigid mounting point in the optimum place.
Having said all that, I think a shaft with a single universal joint would be better than a shaft with the two. I am researching this on the web. A single universal joint seems good up to 35 degrees of deflection, which seems way more than enough.
It works out that what was the bottom pinion bush can be 'lathed' and reamed out to become the top pinion bush. It's a simple matter to make the new bottom bush. I plan to make a plug to hold and seal this from an engine block core plug - I'll angle-grind it to the right size and tap into place with a sharp hammer blow. I once had to reduce the size of a core plug using a hand file!
Any comments and observations would be most welcome. Personally, I am satisfied that the modification will be totally safe. An advantage of doing is actually improved safety.......the universal joint and shaft should collapse in the event of a severe head-on collision, and the steering wheel not be forced up towards the driver's upper body.
By the way, a quick tip. I took the steering column to pieces, because I had never done this and was curious. Also, there was free play between the shaft and the upper felt bush. The remedy - simplicity itself! Just take out the felt bushes from the column outer tube, oil them, turn them inside out, and put them back in! Snug as the proverbial bug!