the brown truck showed up today

some assembly questions on xf 700 BB 800 kit

appreciate the help

should the piston pin circlip opening face up or down?
assemble with the apv oil?
antiseize on the cylinder and head bolts?
torque #'s for cylinder, head, exhaust?
any particular tightening pattern or just vary diagonally?
i was just going to clean all the parts with brak clean

i've read to lightly grease the o rings and/or stick in the fridge for awhile before installing.

there seems to be two schools of thought on piston/cylinder assembly. one is to install the piston on the rod then the cylinder and the other is to install piston into cylinder and then install onto rod. any input or tricks on easiest way to do this? i may have some help from someone with zero mech skills (my wife) so just looking for best way to do this.

on disassembly there was not any kind of gasket sealer on the cylinder gasket so i'm assuming that's not needed.

the torque and tightening specs i could probably get from the local dealer but they're kinda a pia to deal with.

i've noticed on the forums that there are quite a few pinned posts on clutch removal, DD oil change, track change, etc. but nothing on disassembly/assembly. might be helpful to have something like that.

thanx in advance.

mtn_extreme said:

circlip opening should line up with the notch in the piston so when you have to take it out, you can get to the end of it.
assemble with good old non apv oil as well as for the first tank (my opinion, they will vary)
no anti-seize
torque (these are for my m-sled, should be the same) cylinders 40/50, head 22/25-diagonal.
Break cleaner is good, I put mine in the dishwasher (but I'm not married)
Light grease on the o-rings and have them colder.

Make sure you have the piston rings in the right way, there is an up and down. They should fit loose.

If you are doing it in the sled you will have to install the piston first and then slide the cylinder on. That is the easiest way anyway. Your rings can be compressed to the stops by hand and the cylinder goes right on.

Replace your base (cylinder) gasket every time you take the cylinders off. Put a new one on but spray it a couple times completely with coppercoat first.

Hope this helps,

MX

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thanx for response. not sure what you mean by the circlips being in line with the notch on the piston. do you mean the cutout notch on the piston pin opening where circlip installs? looks like the same cutout would allow you to turn the circlips with needle nose pliers to get the gap in the circlip oriented the way you wanted. The new pistons are oem 800's.

what do you mean by non apv oil? years ago used to use (on four cycle rebuilds) stp oil treatment cause it's sticky. been many years though and don't know if they even make that stuff anymore.