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Hi. I have an S reg Fourtrak F78 and the rear door hinges are becoming very warn which has caused the door to drop and become very rattly. Can anyone tell me where I can get new ones as Milners don't do them? Thanks
Hi. I have an S reg Fourtrak F78 and the rear door hinges are becoming very warn which has caused the door to drop and become very rattly. Can anyone tell me where I can get new ones as Milners don't do them? Thanks
Use C pins or Sellock pins to
Use C pins or Sellock pins to give them their correct title.
Remove the hinges if they are the internal type, or you can leave them in position if they are the external type, but with the door shut.
If you remove them you need to drill them out to the next size up, to do this I clamp them to a piece of thick steel plate and drill straight through them with a pillar drill, obviously after aligning them and removing the pin, get your C pin and just knock it in with a hammer and gut any excess length off with an angle grinder and a slitting disc.
To do this on the vehicle you need more care and a steady hand, leave the door shut so its aligned, tap out the worn pin and drill to the next size using an angle drill and the correct sized bit, measure and cut the C pin to length and tap in. Once in go to the other hinge and repeat.
C pins are sometimes called roll pins, they are a slightly out of round tube made from spring steel with a slit down their full length, they have a taper on each end so they can be started easily; as you tap them in the slit along its length closes and the spring nature of the material pushes out to form a tight hinge.
Once fitted their spring action forces them outwards and this tension holds them in, once fitted you fill them with grease to lubricate them and your door will be a tight fit for a few operations until the grease circulates around the centre of the hinge and lubricates it.
I have the same problem, does
I have the same problem, does the hinge pin just push out or is it threaded into the botom yoke?
Depends on hinge type, most
Depends on hinge type, most are a push fit but some are threaded, a threaded type will have some form of head to engage something in.
You will need a pin punch normally to get them moving, but put plenty of penetrating oil on them first and leave to soak overnight, get them started and you can normally get something under the top flange once they move.
Thanks, Assassin, for the
Thanks, Assassin, for the info.
I've just spent a quiet afternoon fixing mine, so here's a how to:
This applies to a '92 Fourtrak TDX with press-fit pins. I have some photos of this but can't see how to upload them. Anyone know how?
1. Remove the hinge from the vehicle (If you can't do this, stop now and pay someone else to do the job!)
2. The hinge pin will be rusted in very firmly, The top part is splined to prevent it turning. Place the short end in a vice, heat the two end yokes to orange and brush off the paint etc. The hinge is galvanized so make sure there's plenty of ventilation.
3. With a flat ended drift (a centre punch will expand the pin), try to drive the pin out; if it's still too tight, grip the long end with pliers and hold it over a suitable hole in a large lump of metal. The hinges are fabricated from mild steel and are pretty resilient. My pin was broken into three parts. You might need several heats, to save time while the metal is hot, practice the moves and make sure all the tools are to hand.
4. Check the hole in the centre (moving) yoke, run a drill through if it's not round. Mine appeared to have been fitted with bushes at the factory as there was no sign of earlier repairs.
5. Turn a pin to make a sliding fit in the centre yoke, I made mine over length so as to be able to cut off the part with the centre hole. The next time I do this I will also knurl the portion that goes into the top yoke to provide a firmer fit.
6. Grease it, assemble it, paint it and fit it back onto the car.
7. Test drive.
If anyone needs this done, PM me.