E30 M3 S62 Build - Loads of queries about 4x4 drivtrains

[The Dark Side of Will]

Sorry... I guess I'd said that on E30 tech but maybe not here.

Yes, moving the crossmember and rack together or moving the entire steering arm with the outer ball joint and tie rod end together will only change the point on the bump steer curve where the suspension operates.

Moving the rack relative to the crossmember or moving the tie rod ends relative to the ball joints will change the shape of the curve. "Change the shape" means "make it worse" because BMW did the best they could when they designed the car.

The only way to make a strut suspension free of bump steer is to put the tie rod and control arm in the same plane. In order to have realistic caster, doing this would require using wheels significantly larger than 14".

[Turk]

In other news, I had the blocks drilled and tapped,
got some 3mm and 4mm sheet, and built the extra section into the chassis rails.
A couple of drain holes and sealer in and out and its ready for the subframe.

[Turk]

Stole this off another forum, Have a look at the nuts, they're the heightened double threaded type. CAnnot find them on realoem to save my life!!!
Ignore the circles, intact look above them and you'll see the double ended shell cup/oil pump bolt.



The X5 Sprocket is a fair bit smaller than the s62 on, But it looks probable that if i do keep the s62 chain and sprocket it will sit perfect (chain length wise)

What do we reckon?




I fitted the suction tube, hoping it would give me a good idea of the spacing i need to achieve,
Sure enough:


Still struggling to find those stupid double ended bolts though! :x

[Turk]

Will, Have you got your m60/62 available for some measurements/quantities?

I need to know the rough diameter of the crank cog which drives the oil pump, and number of teeth too if possible.

I need to calculate the gearing differences between the m62 and s62.

Help appreciated:up:

[The Dark Side of Will]

I have not taken it apart.

I've been concentrating on building the exhaust for my Pontiac Fiero with Cadillac Northstar engine... To say that there's not much room to work is the understatement of the year.

The QC guy where my dad works finished up a CMM model of the M62/5HP24 bellhousing. I need to order the Corvette front plate, get it CMM'd and snag a copy of SolidWorks to design my adapter to bolt the two together.

[dirty30]

stole this off another forum, have a look at the nuts, they're the heightened double threaded type. Cannot find them on realoem to save my life!!!
Ignore the circles, intact look above them and you'll see the double ended shell cup/oil pump bolt.



the x5 sprocket is a fair bit smaller than the s62 on, but it looks probable that if i do keep the s62 chain and sprocket it will sit perfect (chain length wise)

what do we reckon?




i fitted the suction tube, hoping it would give me a good idea of the spacing i need to achieve,
sure enough:


still struggling to find those stupid double ended bolts though! :x

11111747403

[Turk]

Dirty30 youre a star, I had been looking in completely the wrong section.

Many Thanks

[PANZ3R]

Hey guys, was surfing the 'net and somehow wound up on this thread. Felt compelled to register and post, as I'm tearing through the 4.6iS (again).

Don't know if I can help, or not... or whatever, but give me a shout if you need a measurement, a picture, or something. I'll do the best I can to accommodate.

Cheers. Good luck.

- J

[Turk]

if u have a picture showing the tooth quantity on the m60/62 crank Sprocket which drives the oil pump?

Would be much appreciated.

cheers

[Turk]

Good progress, pump is torqued down, just figuring out what cog I need to be using.

Mocked up the sump, Perfect fit!

[The Dark Side of Will]

And that's the M62 pump, of course... doesn't look like there's room for much else.

[Turk]

yes its the X5 m62 4.6 pump. I will be baffling the sump, and then to ensure the pickup always has oil I'm going to have a 'top up' tank with independent pump which will hold a 1 or 2L and will work in congestion with a G meter, the more G, the more pump. This will probably come later as I have a friend designing the system gratis for me so can't rush it.

[The Dark Side of Will]

You're ahead of me in this regard, but now I know how to catch up if I can't get the S62 pump to work. ;)

My parents just bought a '91 LasurBlau iX, so I can take engine bay comparison pics (and measurements) for the strut towers.

[The Dark Side of Will]

yes its the X5 m62 4.6 pump. I will be baffling the sump, and then to ensure the pickup always has oil I'm going to have a 'top up' tank with independent pump which will hold a 1 or 2L and will work in congestion with a G meter, the more G, the more pump. This will probably come later as I have a friend designing the system gratis for me so can't rush it.

Not really getting how this system will work... The aux pump should fill the tank when there's no lateral g and shut off to allow the main pump to pull from it when there is lateral g.

Sounds like you could just go with the 3 quart accusump.

Really looks like the M62 pump is packaged about as tightly as it can be. I hope it works for you.

[Turk]

If you look at my thread on the e30zone.net you'll see the ins and out of the x5 pump. There one guy who Is very knowledgable about pumps and sumps etc and has offered a lot of advice. Worth a read

http://www.e30zone.net/modules.php?name=Forums&file=viewtopic&p=2398094#2398094