markk

iTrader: (2)

botters

iTrader: (2)

is that a datsun binliner box?

markk

iTrader: (2)

it is, well part of it is !! lol

botters

iTrader: (2)

keep us up to date with this conversion mate im very interested in this conversion and i see your localish to me so could be a good help lol
you know daz c and ajc dont you?

markk

iTrader: (2)

I do indeed !

botters

iTrader: (2)

good man where abouts you from? do you go lancs rs meets? (houghton arms)

markk

iTrader: (2)

i live just down the road from Daz, and no, sorry dont do car meets.

markk

iTrader: (2)

all going for cleaning tomorrow so I can then weld it up.

Just out of interest, if I was to offer this machining/welding what would someone be prepared to pay ?

All i would want to be the two front half cases empty, I havent got the time to be stripping filthy gearboxes for people lol

Mark

M K

iTrader: (9)

What box is that your converting then Mark?
Staying 4wd I take it with this new box

markk

iTrader: (2)

R32/R33 and yes still 4wd.

M K

iTrader: (9)

what power is a standard liner box good for then Mark?

They look longer than an mt75 box overall, i gues you need a new front prop made up??

I like the idea though as even with a bara box for about Ł3500 they don't seem to last long

M K

iTrader: (9)

Also when cutting the casings did you rough cut them both with a saw/grinder then have them machined the last 5mm to get a perfect face on each?

YOREVOL

lokks awsome!!!!!!!!
how do you keep it in line and square?

chaffe

Nice, you clocking up the bore in the skyline box then using that as a datum on the mill to set the hole points out on the ford bellhousing before tacking together?

chaffe

The other thing is you are obviously usung a skyline clutch, but have you just drilled and tapped the ford flywheel to suit?

Mark V8

iTrader: (2)

I would be tempted to bush the bellhousing to engine dowel holes after welding to make sure the alignment is spot on

Mark

markk

iTrader: (2)

yes new props and have been seen good at over 600hp, the gears are massive compared to MT75.

Rough cut yes, then milled till I got the distance I wanted (ignore the 5mm as it was a series or cuts we made lol)

see below

see below

AP racing clutch with skyline 7.25" tripple plates.
the flywheel was already made to take an AP clutch, i used it in my last car.

the alignment is made by fitting the bellhousing to the car (on the engine dowls) the the skyline front case is clocked and weighted and pre-heated before welding, the cases are currently being dipped to ensure all impurities are off the aluminium before welding.
not sure whatyou mean by bushing the bellhousing, if you mean for input alignment, I have had the input shaft fitted and a very tight crank bush fitted to hold the input front case inlign all along, and will still be in whilst welding.

Glenn_

iTrader: (1)

Never seen it done this way. Will be interesting to see it finished.

chaffe

Suppose you can just put a mag base clock on the flywheel and clock up the input shaft bearing bore that way.

liammcl

iTrader: (4)

Will you be leaving the bellhousing long so you can machine any distortion of the face out after welding? I'm sure someone had to do that on a similar job.

chaffe

twenty thou skim would sort any distorsion after welding

-beefy-

iTrader: (6)

got to be 2- 400 quids worth of cleaning , maching and welding there mark , ??

anglia105e hinson

This is going to be a good thread mate. Followed the fella with the xr4x4 on his conversion .
In terms of the input shaft how much shorter is it needed to be than the v6. Because from what I can remember it was a bit tight for the amount of spline left on the shaft. But by the looks of it you gave no problem as the clutch is there.
Also how are you going about the release bearing arrangement?

I have been researching alot on this as I will be doing this myself sometime soon,
well when my funds have stop being sucked up by my misses for our wedding. Lol

anglia105e hinson

This is going to be a good thread mate. Followed the fella with the xr4x4 on his conversion .
In terms of the input shaft how much shorter is it needed to be than the v6. Because from what I can remember it was a bit tight for the amount of spline left on the shaft. But by the looks of it you gave no problem as the clutch is there.
Also how are you going about the release bearing arrangement?

I have been researching alot on this as I will be doing this myself sometime soon,
well when my funds have stop being sucked up by my misses for our wedding. Lol

markk

iTrader: (2)

the 4 pot vs the 6 pot inout is about 20mm shorter, i dont know the exact comparison as to how mush of that is into the crankshaft, though from the looks of it i would say quite a bit.

The skyline input shaft has a very short run of splines, compared to the ford input shaft, but im pretty confident i can get a set of tripple plates on it.

for me, clutch release will be a concentric cylinder, but no reason why a std 'push' skyline system couldnt be used.

Mark V8

iTrader: (2)

Sounds like you will be pretty close, but things do move around when welding.
If you bushed the bellhousing dowel holes and re-machined them after welding using the input shaft bearing hole as a reference you can ensure it's spot on.

Easy way to check is sticking a mag base on the flywheel and running a DTI around the input shaft bearing hole in the case after the welding is done.
If there is no more than 0.004" total variation it should be fine, any more and it would be worth bushing the dowel holes.

Mark

xr4x4rs

iTrader: (5)

what spigot bearing are you using aswell as flywheel or have i missed that?

as the skyline input shaft is a lot larger in diameter than a cossie one, so did you machine the input shaft diameter of the skyline or use a different bearing in the end of the crank?

i for one will be very interested in this if you can offer this service

markk

iTrader: (2)

The whole thing will be on the engine whilst being welded, so fully bolted up, theres no way I would try this without having it bolted up as it would distort like hell, the short bellhousing section has already distorted just from cutting it from the main gear case has to have alittle 'knock' to fit it to the block.

If I bush the dowel holes then I wouldnt be able to bolt it up, thus removing two points of location for pulling the case to the block, plus the cool down period will be very slow, the case will be - de-heated to prevent stress on the welds.

ther will be a good couple of hours welding to be had!

No didnt machine the input shaft, as that then effectively means if you do ever need another shaft, you have to mod that one too, so a differant bearing was used.

xr4x4rs

iTrader: (5)

carnt see any reply to my question you quoted lol

andy escos

iTrader: (1)

i will be keeping an eye on this thread as i am very interested in doing this conversion on my escort next year

markk

iTrader: (2)

answered

xr4x4rs

iTrader: (5)

cool, i take it you could supply the bearing aswlel then?

markk

iTrader: (2)

I could.

Bloomers

iTrader: (1)

i'd deffo be interested in having this done if you start offering the service, mark.

AJC

iTrader: (6)

mark, i need a skyline box in my life, once its welded up, give me a shout please and i'll come have a look at it

chaffe

as i said

markk

iTrader: (2)

I had the cases cleaned so we had all the oil off, but there is some sort of zinc coating on the cases, as we started to weld we realised this needs to be removed.
But all in all well pleased with the result.
As the first one we have done (the prototype lol) I have no doubts it will be fine.

there are a few things I would do differant if I did another, differance in the prep, and the filler but, well happy !

one of the holes on the housing meet



I'll build the box back up now, and then start the fitting.

MK MOTORSPORT

iTrader: (1)

hi mark what filler rod did you use

mark

markk

iTrader: (2)

iirc it was just pure aluminium for some, but that last bit (the small rectangle) has a percentage of silicone (not sure how much tbh without going to look)

Why ? what can you tell from the welding (still learning about rods for purposes ! )

Mark

chaffe

looks great mate, lets hope when you launch hard the whole gearbox doesnt break free and spin around the engine! (only joking!) Great craftmanship there, did it move around much? or is everything pretty much still inline?