Marc,
Ohhh, so that's why my rebuilt tranny shifts stiffly? Guess I'll have to try
your approach when I finally reinstall it.
Thanks for the tip.
Mike
----- Original Message -----
From: "Marc Sayer" <marc@gracieland.org>
To: <Geegc@aol.com>
Cc: <datsun-roadsters@autox.team.net>
Sent: Thursday, February 14, 2002 8:38 PM
Subject: Re: Steering Box -- Redline's final answer
> Yeah, the thing about the MT series of lubricants is they are designed
> specifically for manual transmissions (hence the MT;-). They created an
oil
> that, while still offering the superior lubrication of a synthetic, offers
> better synchro operation. They did this by messing with the lubricant's
> coefficient of friction. Synchros are like little clutches whose job it is
to
> match gear speeds to shaft speeds and allow for easy shifting. If the oil
is too
> "slippery" the clutches will not work quickly enough and you will have
shifting
> problems, especially if you shift quickly. No point having MTL/MT90 in an
> application where there are no syncrhos. The stuff might work well in an
LSD
> diff, where there are clutches, but for that application I'd rather use
their
> ShockProof gear oil. It is also amazing stuff made just for hard used
diffs,
> especially those with LSDs. If you want a thinner gear oil for you diff,
they
> also make gear oils both with and without friction modifiers for both open
and
> LSd type diffs. BUt for the steering box I'd use the 75W90 or the 75W90NS.
BTW
> my experience is that you are best to break in a rebuilt gearbox with
dynojuice
> and after the synchros have bedded in, then switch to MTL/MT90, at least
this
> was my experience with the MTL over the years. Last time I tried to break
in a
> gearbox on the MTL we had it in the box for 4-5 months and it was still
shifting
> badly. We ran dynojuice in it for one week and the synchros bedded in just
fine.
> Converted it to MTL the next week and it worked even better. That was a
good 10
> years ago and I have never had that problem since because I always break
in a
> box on dynojuice then convert it to Red Line. I've never tried to break a
box in
> on MT90 because by the time the MT90 came out I had already figured out
not to
> break in a box on Red Line. You may not have this problem with the MT90,
but
> I'll bet you do.
>
> Geegc@aol.com wrote:
> >
> > If a hypoid 90 weight gear oil is called for in the steering box, I
would recommend the 75W90.
> >
> > Regards, Dave
> > Red Line Oil
> >
> > Of course this was datsunmike's answer yesterday as well.
> >
> > Gary C
> > Return-path: <Geegc@aol.com>
> > From: Geegc@aol.com
> > Full-name: Geegc
> > Message-ID: <31.224fe870.299d3a97@aol.com>
> > Date: Thu, 14 Feb 2002 11:06:47 EST
> > Subject: Fwd: Redline's answer
> > To: Geegc@aol.com
> > MIME-Version: 1.0
> > X-Mailer: AOL 7.0 for Windows US sub 121
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> >
> > Return-Path: <datsunmike@nyc.rr.com>
> > Received: from rly-xa03.mx.aol.com (rly-xa03.mail.aol.com
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> > Received: from mine (24-90-56-21.nyc.rr.com [24.90.56.21]) by
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> > -0500 (EST)
> > Message-ID: <004701c1b54c$ebc3bc60$15385a18@nyc.rr.com>
> > From: "datsunmike" <datsunmike@nyc.rr.com>
> > To: <Geegc@aol.com>
> > References: <cd.1323bcc5.299caf84@aol.com>
> > Subject: Re: Redline's answer
> > Date: Thu, 14 Feb 2002 06:44:11 -0500
> > MIME-Version: 1.0
> > X-Priority: 3
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> > X-Mailer: Microsoft Outlook Express 6.00.2600.0000
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> >
> > Just use 75/90 in the box.
> >
> > ----- Original Message -----
> > From: <Geegc@aol.com>
> > To: <datsun-roadsters@autox.team.net>
> > Sent: Thursday, February 14, 2002 1:13 AM
> > Subject: Redline's answer
> >
> > > I asked redline what to use in the 1600. They answered:
> > >
> > > "In your Datsun 1600 transmission I would recommend the Red Line MT-90
and
> > > the 75W90 in the differential. Thank you for your interest in Red
Line
> > Oil."
> > >
> > > My guess is that they would also recommend MT 90 in the steering box,
as
> > the
> > > 1966 service book calls for MP90 Hypoid gear oil.
> > >
> > > Gary C
> > > red one
> > > black one
> > >
> > > /// datsun-roadsters@autox.team.net mailing list
> > > /// Send admin requests to majordomo@autox.team.net or go to
> > > /// http://www.team.net/cgi-bin/majorcool
> > > /// Send list postings to datsun-roadsters@autox.team.net
> >
> > /// datsun-roadsters@autox.team.net mailing list
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> > /// Send list postings to datsun-roadsters@autox.team.net
>
> --
> Marc Sayer
> 82 280ZXT
> 71 510 2.5 Trans Am vintage racer
>
> /// datsun-roadsters@autox.team.net mailing list
> /// Send admin requests to majordomo@autox.team.net or go to
> /// http://www.team.net/cgi-bin/majorcool
> /// Send list postings to datsun-roadsters@autox.team.net
/// datsun-roadsters@autox.team.net mailing list
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