Indeed you, and everyone else, may - fingers racing ahead of brain and eyes
not following up either.
PaulH.
----- Original Message -----
From: Lawrie Alexander <Lawrie@britcars.com>
To: Paul Hunt <paul.hunt1@virgin.net>; <Pointparty@aol.com>;
<mgs@autox.team.net>
Sent: Thursday, April 06, 2000 3:44 PM
Subject: Re: clicking/ticking valve noise diagnosis
> At risk of putting words where they don't belong, but to prevent confusion
> among the less proficient on the list, may I assume you intended to say
> "badly ground camshaft" rather than "crankshaft", Paul?
>
> Lawrie
> British Sportscar Center
>
> -----Original Message-----
> From: Paul Hunt <paul.hunt1@virgin.net>
> To: Pointparty@aol.com <Pointparty@aol.com>; mgs@autox.team.net
> <mgs@autox.team.net>
> Date: Thursday, April 06, 2000 1:14 AM
> Subject: Re: clicking/ticking valve noise diagnosis
>
>
> >I too have had a loud click plus some general clatter for 25k miles and
10
> >years and not been able to eliminate it through correct valve adustment
> >using the Rule of Nine. However I have only just discovered that if I
turn
> >the crankshaft a little past the Rule of Nine point when adjusting valves
6
> >and 8 the gap goes up (to 21 in the case of 8) and similar for 7 but
> >*before* the optimum point. Setting the *maximum* gap correctly,
> regardless
> >of the Rule of Nine, has resulted in an amazingly quiet engine. However
I
> >am now concerned that too quiet may not be a good thing and would prefer
to
> >hear the clatter and know that the gaps were at least big enough,
> >particularly as the UK has just lost leaded.
> >
> >A badly ground crankshaft seems to be the concencus of the problem here,
> >although the engine is a Gold Seal and they can be better than the
> >originals! I don't think it is wear because the clearances have hardly
> >changed over the aforesaid 25k miles and 10 years.
> >
> >PaulH.
> >
> >----- Original Message -----
> >From: <Pointparty@aol.com>
> >To: <mgs@autox.team.net>
> >Sent: Wednesday, April 05, 2000 8:50 PM
> >Subject: clicking/ticking valve noise diagnosis
> >
> >
> >> Looking for advice, counsel or informed opinions:
> >>
> >> My 71B gt with 97K miles on original engine with rebuilt head at 70K.
> has
> >a
> >> valve nioise which we are certain is in the #3 counting from the front.
> >It
> >> runns fine, good oil pressure, nothing has changed. I have had two
> >trusted
> >> MG pros check and recheck valve adjustments and everything is proper.
> >>
> >> Thre are two distinct opinions as to what is the cause:
> >> one opinion is the rocker arm assembly needs to be replaced with a
> >refubished
> >> rocker arm assembly, or in a pinch the suspect rocker arm and bushing
> need
> >> replacement but the labor is almost as much as replacing the whole
thing;
> >> the second opinion shared by two more experts is that the camshaft is
> worn
> >> and should be replaced. This opinion includes the advice to remove the
> >> rocker arm shaft assembly first and check for movement of the suspect
> >rocker
> >> arm.
> >>
> >> Generally it is said that this is not a cause for alarm or immediate
> >concern.
> >> Some people say they drive their MGs for years with the valve noise as
> >long
> >> as nothing else fails that demands going into the motor. Is that for
> real
> >or
> >> will I wear out the engine or have microscopic pieces of MG in my oil?
> >>
> >> I can buy a refurbished complete rocker arm assembly and have it
> installed
> >> for around $3 or $4 hundred bucks, but if that is not the cause I still
> >have
> >> to put a cam in and that means taking off the radiator, and all that
> stuff
> >in
> >> front of the cam access plate.
> >>
> >> Then the agony of going deeper and deeper into the black hole of the
> >engine,
> >> until I remove the block, and while I'm at it may as well rebuild the
> >clutch
> >> parts, rebuild the transmission, front suspension, spend thousands,
have
> >> parts all over the house, and my wife throws me out. I've been there,
> >done
> >> that with a midget that I had to sell in order to get to sleep in the
big
> >bed
> >> again.
> >>
> >> Advice please, drive as is or ?????
> >>
> >> thanks....Mel
> >
>
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