The Puma 1.7 Zetec SE engine is the only Ford Engine to not have a standard 21mm spigot bearing cavity in the end of the crank (engine only ever
envisaged to run RWD I think) !
The 1.7 SE has a 17mm cavity but the standard type 9 (and RX8) box has a 15mm input shaft.
The usual fix for Ford FWD engines with RWD boxes (e.g. Zetec) is the sierra 21mmOD/15mmID spigot bearing.
The solution for the 1.7 SE is to machine out the end of the crank to 21mm (or grind down the box input shaft to 12mm).
However, I have found this "bearing" that works similar to a Phosibronz one (used in many older cars for a spigot bearing) but is much
thinner and will fit this combo -
http://www.getyourbearings.co.uk/plain-wmu/wmu1520.html
Can anyone see why I could not use this bearing for this application ?
Alternatively will a 1mm thick 17mm OD phosibornz bearing do the job or is this too thin (even if I could get one made up) ?
I would risk it, or make one out of Oilite (sintered bronze) and it wont be a problem. The input shaft is spinning at crank speed most of the time anyhow so not much wear.....
quote:
Originally posted by redturner
I would risk it, or make one out of Oilite (sintered bronze) and it wont be a problem. The input shaft is spinning at crank speed most of the time anyhow so not much wear.....
and dont forget to charge the Oilite with oil.....
I used an oilite bush for a spigot in the Alfa crank. It worked fine.
Phosphor bronze bush takes me back. If you balance it on the ball of your thumb, fill it with engine oil followed with the ball of your other thumb and squeeze till you see oil come out through the sides, it's lubed for life. Never had one wear out.
That is Oilite, (sintered bronze) not Phosphor Bronze.......
Cheers guys, that will save me a whole lot of hassle and has made up my mind that it is now easier to change the engine than time up the one I have
just to see if it has a bent valve following a "mishap" with the crank pulley slipping (heavily suspecting that). I can also swap over the
type 9 for an RX8 bid whilst I am at it.
Final question, where can I get an oilite one made to order and is 1mm too think for such a bearing?
I bought one with a flange from bearingboys and reamed out the I/D. Putting in the freezer for a couple of days helped.
Just thought I'd add what I ran for two years to give you confidence. I had a piece of 15mm copper pipe that fitted over the gearbox shaft and fitted into the end of the crank. Never caused a single problem.