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It's awesome - takes an hour or few measuring, cutting and fitting the plates into a suitable container but once you have that done just chuck in rusty parts, flick a switch and let it work its magic.
None of the dust, elbow grease, exotic products or noisy and messy sand blasters required.
Attention turned to the rear diff - it got a thorough degreasing with "marine clean" - much of the original black paint is gone of course so I have now three questions.
1. I will of course be renewing the oil with the right stuff but there is a tiny amount of play when turning the input shaft by hand before the output shafts turn. How much is too much play ?
2. Is it worth the hassle of opening the diff to check anything in particular ?
3. I was going to prime the diff casing with POR15 metal ready and then apply two coats of POR15 engine enamel - unless there is something superior ?
I wouldn't open it unless you have a reason too, i also wouldn't mess with backlash and gear mesh unless you have to. If it ain't broke don't fix it basically. Fresh oil is a good idea, good luck getting the filler plugs out
91CQ20v - Gone to a new home
93UR-S4 - The Magic Carpet
94S2Bus - The Emerald Express
1. I will of course be renewing the oil with the right stuff but there is a tiny amount of play when turning the input shaft by hand before the output shafts turn. How much is too much play ?
2. Is it worth the hassle of opening the diff to check anything in particular ?
How much fun do you want to have?
Rear diff is about page 200, measuring backlash is the last few pages.
Cheers lads - I too don't want to make this complex - the diff never whined or clunked before and it was never launched to death.
Fresh oil, gaskets / seals and a peek inside the cover is hopefully enough for that. I couldn't even begin to describe "backlash" to anyone anyhow - never mind measure it ;-)
I dropped the power source down to 6V for current below 2A for an overnight session. Back up to 12V this morning as the current draw is around 2-3A again and they are coming along lovely.
Meanwhile back to the rear diff - my lovely buzz gun managed to get the drain and level plugs out without drama. Oil still had plenty of colour in it - not the black gloop I was expecting.
Removed the output spindles and opened the cover to find nothing untoward.
There is definitely a little play in the diff but on the basis that it never gave grief before I think it's ok but I should really read the manual before I satisfy myself that is a good plan.
Setting up the backlash isn't too bad. You just need some marking blue, a dial gauge and small press - the backlash is set by distributing shims behind the outer diff carrier bearing races.
Panthero Coupé quattro 20vt
Indigo ABY coupé
Imola B6 S4 Avant
Looks alright. This might be of interest to you from when i rebuilt mine. I'll have to do some digging and find the Corteco part number for the manual diff seal as i posted the wrong one in my original post.
Torsen is a nice upgrade
All seals are made by Corteco, same as OE. I sourced mine from http://abbeyseals.ie/
Right side seal for diff, also input shaft and gearbox outputs,
016409399B : BASLDRWx67 : 45x60x8 : €5
Left side seal for manual locking diff,
017525400A : ???? : 72x122x10/13 : €20
Left side seal for torsen diff,
017525400C : BASLSFRSX7 : 45x122x12/23 : €56
91CQ20v - Gone to a new home
93UR-S4 - The Magic Carpet
94S2Bus - The Emerald Express
Thanks for those numbers Mark - very much appreciated.
As for backlash I do have some marking blue but that's as far as that goes.
Other reason for this post is an update on the electric soup. Here is one of those struts after 24hrs. If I wasn't doing this myself I would almost think it's some kind of witchcraft.
Some quick updates - let those struts soak another day but nothing much more coming off them. It's a bit weird as the chemical obviously attacks any weak or loose areas of original powder coat. I gave them a quick go over with 80 grit paper just to purge any last loose bits of paint then prepped them with metal ready so they can sit like that until I have the mood / time to paint them.
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