Range Rover classic / P38 viscous coupling, explanation and testing
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- เผยแพร่เมื่อ 9 ส.ค. 2022
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Britannica Restorations Ltd
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Mike held up the VC and instantly my brain said "Oh I thought it would be bigger" Then my brain replied with "That's what she said" LOL. Thanks for sharing this great video.
lol!
Great video Mike,and a Nice haircut!
Makers you 10years younger!
Hvl.
Thank you kindly
Never had a problem viewing your videos Mike, I could listen to you talk about Landrover tech stuff all day, a mixture of reminiscing and education, your Sunday sorts are wicked, just seeing the old stuff reminds me of what's hidden in my container👍
Thanks for the video Mike. Workshop manuals are good but this makes the job much easier to understand. Appreciate you showing the internal rings too
Thanks 👍
I purchased a spare P38 box 10 years ago to have a spare coupling if needed, as the cost of a new one scared the wits out of me. Mmmm, I’ll check the spline this week. Thanks for the lesson…….. greatly appreciated.
I rebuild my transfer box from my RRC MY 90 completely for peace of mind (viscous coupling seized up) and it costed me 1200€ in parts, but every moving part is replaced. I bought a viscous coupling from Ashcroft. They seem to be the only one in the buisiness to refurbish them, and sell a decent chain.
THE VC's seems to be hard to find now - No stock at Ashcroft's
Hi Mike. The video looks great. Never thought there to be a problem previous, but, Hey Ho.
Hey, thanks
Mike, at around 11 minutes you were driping fluid from either the coupling under test or the transmission when you started turning the coupling with the torque wrench
Regarding framerate, smartphones and pc monitors have a default refresh rate of 60Hz, so video at 60fps is ultra smooth as it matches. 1080p60 is considered the optimum setting for internet video content. Some people only notice a change when they watch an old video at 30fps and see the micro-stutter on motion. But as always it's the content that's most important, and that's always top notch regardless of framerate.
Great video Mike always enjoy watching you testing and repairing things keep them coming always something to learn
Thanks, will do!
Hi Mike. Video quality is much clearer at this frame rate.
Good to know!
I rebuild one not too long ago. New chain, viscous coupling, shaft and bearings - so it's like new - over 1500 EUR/USD on parts alone. The thing is if someone really need/want one there is no cheap solution. I'm based in Europe and it's still so expensive that many rather choose to fit and adapt LT230. The chain Ashcroft sells is made in US by Ramsey Products, Charlotte, NC - so maybe you can get it cheaper. Providing that you have shaft with good splines, if you would replace the chain, bearings and seals you can put together box which can be of a great value to right person, if you happen to meet. Just don't forget to glue in bearings like I did :-D
I have never been asked for one in 25 years so not much chance of selling one now - too expensive to be on the shelf!
Excellent subject, great video Mike, those VC transfer cases were a "mystery box" and yet so simple looking, also irrelevant and unnecessary. My mate had the VM diesel and VC gearbox/transfer case out of an '89 RRC we fitted into his '85 County. It worked great for a couple of years but then the axle flange adapters started stripping out, yes, that VC had seized. We put the original geared transfer case in again, which still remains working perfectly ten years later. I rest my case.
I may pop to JP's and see if he can open one up and see what is inside!
@@BritannicaRestorations yep, looks like you could simply machine the closure welds off to separate the bits. Your living my dream, I love looking at all this stuff.
I bet they are cheap to make in numbers
New frame rate looks great to me! By coincidence, I've started to wonder about my viscous coupling, lots of tyre squeal when turning sharply in multi-storey car parks. Now I've seen how easy it is I'll go check it out. Probably take two weeks of seized bolts etc to get anywhere near it!! As always many thanks for the videos, keep them coming please.
Thanks for the donation, Pete!
Yep! you haircut looks great , so keep up the frame rate. You do need a clip-on mic , to keep audio up when you turn your back to the camera.
Thanks for the tips!
Bether sell it as it is.
Cheers King Mike. 🥃
Didn't realise the convertors were that hard to find (or frankly the bits so exxy) I've got a p38 borgwarner that I got cheap for a slightly ambitious project of using the hi/low gearing to make a reduction stage for my disco.
Looks good, Your hair has a nice shine on it !!!!
Thank you!!
Excellent Michael! !
Much clearer with that better frame rate Mike 🙂
Thanks!
The frame rate does make the video clearer I would say. Another interesting video Mike. Always learning and had heard of a viscous coupling but wasn't really sure what they did. They sound a bit like the same scenario with the Boge self levelling units like I've got on mine. I don't think you can get them these days and it's lots of dosh to get a refurbished one.
Even 20 years ago, it was common practice to dump the self leveller and put heavy springs on the back, was a good idea until the warranty ran out...
Great video. Very likeable guy too.
Thank you kindly!
Good video really interesting thanks Danny
Glad you enjoyed it
Camera is great . Make sure the customer pays up front before rebuild ,no more new parts on the shelv $$_lol. 🍺
Well, I tried that, but I learned a lesson a long time ago that I really need to have a customer's transmission here and opened before I send a replacement out - I have had some that look like a grenade has gone off in them- - hardy any serviceable parts - gets expensive to rebuild as I have to import parts or complete transmissions to replace them - the core charge would have to be very, very high!
Didn’t notice much difference with the frame rate. Usually looks fine. Those VCs look dead simple. Shouldn’t cost so much, but I have to say that about everything now it seems.
looks much better mike😀😀
Thanks!
you need a white coat and safety googles when you do these testing videos, then shout "for science" at the end. Video looks good
Oh this is awesome, I’ve only heard people arguing about VCs on the internet but I’ve never had a visual of what’s actually happening. This isn’t going back on the RR is it,?you switched that to lt230 last I saw. Great video either way. Learned something here today.
Glad you enjoyed it!
I haven't had an issue with the quality you put out. If the change in frame rate causes extended up load time I wouldn't really bother about changing. Regarding the spline wear on a gearbox that has supposedly done around 75000 miles. What would cause that sort of wear. Would play in the next joint in-line (diff / UJ) cause that sort of thing to escalate.
I have fibre internet now so speed is not an issue, but it was bugging me why other folks videos were much clearer for the same 1080 rating - camera was set at 60 frames a second, but rendering was 30.
Spline wear - could be dirty oil or low oil, could be drive line - very hard to focus on as I have not seen it before
Exellent thank you
You are very welcome
The new frame rate is good, at least outdoors.
Yes, I am please with the results!
big diffrence to me mike
Shipping really is a killer customer in Canada ordered a 6kg item postage is between £54 / £65 + import duty £9
Yes, I know - going to put a lot of projects on the back burner
Absolutely gorgeous!!! Almost like your in the room ♥️💕❤️ smashin....
😊 thank you
Nice to see how to test them on bench , but many would like to know how to test them on a running range rover
Same
@@BritannicaRestorations i mean without removing propshafts or wheels. In the past I had seen an Ashcroft video about checking these but can't remember
Hello, I have had some similar problem on my D2 Td5 auto, front wheels would jump in corners, it eventually broke my front propeller shaft. I checked the diff and changed cv joints, but does anyone know if D2 transfer case has a similar viscous coupling? Thanks.
The D2 had an LT230 like the Defender - sounds like the centre diff is locked up
I take it that was from a P38 Mike would a RRC be similar if so why not just strip it down and put it back together for "educational purposes", yes I am still waiting to rebuild my one it's sitting at the back of the workshop waiting for the man who knows to show the way, by the way the brake seal tool worked a treat ( see what I'm doing there ) the new pictures work great.
The P38 output is on the left-hand side but has the same coupling - not much call for either box nowadays - maybe I will keep it for a winter strip down project but not buy new parts
Glad the tool worked out!
I've got 3 of these transfer boxes on the rack, am I sitting on a gold mine ????
Indeed!
I got the perfect idea,we contact our girlfriend LandroverSophie and send it to her at her expense. LandroverSophie likes the old stuff.😁😁😁
In fairness Mike. Its knocked 10 years off you
Ah! 35 again then...
I wish somebody would just build a torsen diff with a diff lock for these. My p38 would be far better with that option
Mike. Having a similar experience with bump steer on the Rangie too ! I've recalled running one front style 'Defender' and a rear mounted axle "D1/D2" steering stabiliser helps ? V.
I have never worked out why some Rovers do bump steer and some don't - mainly RR's and Disco 1's - Never had it on D2, or P38 come to that, but the suspension was different, so I think that sorted it
Mike slightly off subject but do you know why 110 rear drive shaft and flange are separate,but 90 and classic Rangies are solid? Would it make any difference to swap to solid? What do you think 🤔 thanks Alan
I know solids are not available for 110 - no idea why - I have been welding them up on the outside flange ( only on new shafts and flanges, so there is no wear), and so far so good
@@BritannicaRestorations thanks Mike be good to get an update on your findings. 👍
Now to test the other two? 👍🏻🙏🦘
That's the plan!