G
Guest
Guest
Sorry Julian, I have not use the thread title, but life is never so
easy out here to keep all messages.
So FWH, remember mine is a part time 4WD, and after reading all this
stuff about busted Birfields am I glad I go almost everywhere in 2WD !
My Brum motor spares birfields are still hanging in there after 4
years and quite a few slippery winters in 4WD.
I don't get the remark that the 80 rear diff must be weak. Remember
that a 'permanent 4WD' 80 is running on the rear diff nearly all the
time in dry (not slippery) tarmac conditions and rarely in 4WD. Come
to think of it, it has to be a pretty rough gravel road before the
wheels slip, thanks to the weight of the 80. So no one should
underestimate the strength of the rear diff, or any drivetrain
component made by Toyota come to think of it.
My FWH are the standard Aisin and as far as I can remember all
the part-time 4WD 80's and 75's I see in my work have them fitted as
standard. We have always instructed staff to keep them in 2WD unless
they need it, it saves drivetrain wear that way.
As for reducing fuel consumption then I thoroughly endorse that
theory. With a part time 4WD, when the hubs are in gear then there is
a lot of machinery turning over from hub to transfer case output
shaft for no reason. FWH are a good idea for that alone.
As for fitting them, they just replace the standard Toyota cap which
is not a difficult task at all. One becomes very familiar with them
when removing hubs for other maintenance and overhaul work. Just
remember to have a brass drift for the cone washers. But if you
remove the hub on the odd occasion even they don't really get seized
into the taper.
Sorry I can't pass much info on the full time 4WD set-up.
Cheers
Jon
Belgrade, Serbia and Linslade, Beds
'92 HZJ80 ex U N Bosnia surplus - does anyone know anything about the
Skoda Roomster?
easy out here to keep all messages.
So FWH, remember mine is a part time 4WD, and after reading all this
stuff about busted Birfields am I glad I go almost everywhere in 2WD !
My Brum motor spares birfields are still hanging in there after 4
years and quite a few slippery winters in 4WD.
I don't get the remark that the 80 rear diff must be weak. Remember
that a 'permanent 4WD' 80 is running on the rear diff nearly all the
time in dry (not slippery) tarmac conditions and rarely in 4WD. Come
to think of it, it has to be a pretty rough gravel road before the
wheels slip, thanks to the weight of the 80. So no one should
underestimate the strength of the rear diff, or any drivetrain
component made by Toyota come to think of it.
My FWH are the standard Aisin and as far as I can remember all
the part-time 4WD 80's and 75's I see in my work have them fitted as
standard. We have always instructed staff to keep them in 2WD unless
they need it, it saves drivetrain wear that way.
As for reducing fuel consumption then I thoroughly endorse that
theory. With a part time 4WD, when the hubs are in gear then there is
a lot of machinery turning over from hub to transfer case output
shaft for no reason. FWH are a good idea for that alone.
As for fitting them, they just replace the standard Toyota cap which
is not a difficult task at all. One becomes very familiar with them
when removing hubs for other maintenance and overhaul work. Just
remember to have a brass drift for the cone washers. But if you
remove the hub on the odd occasion even they don't really get seized
into the taper.
Sorry I can't pass much info on the full time 4WD set-up.
Cheers
Jon
Belgrade, Serbia and Linslade, Beds
'92 HZJ80 ex U N Bosnia surplus - does anyone know anything about the
Skoda Roomster?