RE: Unleaded fuel in L20B

Wed, 27 Mar 2002 01:13:50 -0800

Title: RE: Unleaded fuel in L20B
I'm not a LPG expert but even the best stellite valve seats have trouble with LPG. You need to use a lube like "Flashlube" which is used by most taxi fleets. I'm not to sure about ULP heads on LPG getting any lube from petrol, I think that must have been on leaded heads. Someone told me a while back that you can use flashlube with ULP to lubricate leaded valve seats too, don't know if it's true or not.
 
regards
Terry
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Rowe, Adam
Sent: Wednesday, 27 March 2002 10:28 AM
To: [EMAIL PROTECTED]
Subject: RE: Unleaded fuel in L20B

I thought the "brass" ones were bronze?  Or is there brass as well?  I remember reading that to run LPG you need Bronze ones as LPG is worse than Unleaded, ie. steel ones are not enough.  Is this right or are Steel fine for LPG?

    -----Original Message-----
    From:   Terry Rudd [SMTP:[EMAIL PROTECTED]]
    Sent:   26/03/2002 20:53
    To:     [EMAIL PROTECTED]
    Subject:        RE: Unleaded fuel in L20B

    Nick,

    The material that the valve seats are made out of determine if an engine is
    designed to be run on unleaded or leaded fuel.

    Steel hardened seats are required for unleaded, brass, alloy etc require
    lead for lubrication.

    regards
    Terry

    -----Original Message-----
    From: [EMAIL PROTECTED]
    [mailto:[EMAIL PROTECTED]]On Behalf Of
    [EMAIL PROTECTED]
    Sent: Tuesday, 26 March 2002 5:00 PM
    To: [EMAIL PROTECTED]
    Subject: Re: Unleaded fuel in L20B


    When ppl say that the S2 motor won't run on unleaded, what exactly do they
    mean?

    My S2 engine runs absolutely fine on regular unleaded, it pings a bit when
    it is very hot and pulling hard up a hill in a high gear - but it is better
    than almost every other car that I have driven in that respect.
    It runs 18 degrees BTDC static timing, twin carbies and is mildly modified.
    I have not needed to adjust the valve clearances because of seat wear or
    anything, last checked about 6 months ago though!

    Of course I use PULP for club motorsport duties.

    Nick
    L20B Stanza
    >
    > From: [EMAIL PROTECTED] (Terry Rudd)
    > Subject: Re: Unleaded fuel in L20B
    > Date: 26/03/2002 16:28:18
    > To: [EMAIL PROTECTED]
    >
    >
    > Most Nissan heads made in Japan since 1973 will take unleaded fuel as
    they've
    > got steel valve seats. ie W53/U67/A87
    >
    > The possible exception is the Bluey head that was made in Aus (S2?)
    >
    > regards
    > Terry
    >
    > > I have an L16 with a W53 head, should i be able to run unleaded or not?
    Cheers,
    > > Mark.
    > >
    > > --- "Ben" <[EMAIL PROTECTED]> wrote:
    > > >the casting number is located just near plug number 1, i run a l20b
    with a
    > > >u67 head on PULP, runs fine
    > > >
    > > >----- Original Message -----
    > > >From: "Lachlan Hughes" <[EMAIL PROTECTED]>
    > > >To: <[EMAIL PROTECTED]>
    > > >Sent: Monday, March 25, 2002 3:27 AM
    > > >Subject: Unleaded fuel in L20B
    > > >
    > > >
    > > >> Hi List,
    > > >> Was wondering what I have to look for to ascertain if my 1600 can run
    on
    > > >> unleaded or optimax etc..  It's an L20B with a U67 head (i think).. i
    have
    > > >> read the archives and some have noted that the Series 2 Bluebird
    motor or
    > > >> some high compression L20 cannot run unleaded.  Is there anyway of
    > > >> identifying what head I have and also what heads can or cannot run
    > > >unleaded
    > > >> or optimax etc. so I can work out if it is ok to use in mine.  I have
    > > >become
    > > >> a bit confused after reading all the archives.
    > > >> Any advice appreciated as I am about to take my car for a RWC and
    this
    > > >> requires me to put some fuel in it to get to the mechanice.
    > > >> Lochie


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