Engaging fwh for drive lubrication

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barleywine

Well-Known Member
Posts
301
Location
Mark Cross, East Sussex
Still trying to learn more about the beast, it has MAP type fwh and I`ve read that you have engage them every 100 miles for about 20 mls to lubricate the front swivels.
As I`m not doing many miles at the moment could I not just run for the first mile or so in 4wd with hubs disconnected to keep everything lubed, or is there some reason that would harm the transmission?
 
the top swivel pin on either side of axle has a fibre resin bush with steel pin this gets its lubrication through a small hole in bottom of bush by half shaft/uj throwing oil up ,if you have free wheeling hubs ,shafts dont rotate so no oil gets flung up ,so just run for 10 minuets frequently once a week etc
 
I've got MAP fwh that haven't been engaged for probably about 5 years (its been laid up) and brought back to life recently. Admittedly I've made no effort to do anything about it, its probably done just over 100 miles since I've had it. Anything special I should do, diff oils have been changed.
 
Perhaps I didn`t explain myself clearly, what I meant was, as it is easy just to engage 4wd and allow transfer box to drive halfshafts and lube top swivel without the need to engage the fw-hubs, I could do it easily and more often.
Just wanted to know if there was reason for not useing this method or am I just being lazy?
 
I think people are misunderstanding the question....Instead of getting out and getting hands dirty, kneeling in mud etc. Would it not be easier to push down the yellow knob to get the same effect i.e. shafts will spin but driven by transfer box instead of wheels.

I can't see why not but maybe there is a good reason.

I'd like to do this as my FWHs have taken a bash and are a bit stiff to engage.

D
 
barleywine said:
Perhaps I didn`t explain myself clearly, what I meant was, as it is easy just to engage 4wd and allow transfer box to drive halfshafts and lube top swivel without the need to engage the fw-hubs, I could do it easily and more often.
Just wanted to know if there was reason for not useing this method or am I just being lazy?
Click to expand...
yes you could do that ,it would be the same lubrication wise as running with no fwh
 
yellow knob down wont do the same , as depending on various things one halfshaft might revolve the other might not due to diff action . with fw hubs whats so hard with locking them for afew miles (one journey) once a week ( fortnight)
 
I dont find it a problem to lock mine once every week or two. Guy on fleabay sells greasable top kingpins but why bother.
 
Thanks for your all your replies, so no harm to use transfer box to drive halfshafts except for the risk of one shaft being stiff and not turning.
If I may ask one further question following on from this?
Does this mean that if I was to fit a an Ashcroft high ratio kit, I could use a gear from low range as an equivilant of original first gear on the road for starting off on hills or towing etc without doing any harm? As I have read that the the raised 1st gear is the only disadvantage the Ashcroft kit has compared to an overdrive.
Not talking about massive trailers and low range 1st, as appreciate that torque would be too much for halfshafts.
Just asking as its on my wish list for the future, lots to do before I can afford it.
 
both half shafts would turn in 4wd with fwh,you probably find it would still pull in 1st ,but you could use low box as you can now ,my lightwieght had 3.,54 diffs and still pulled well despite been oiver 30%increase
 
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