[TR] gauges- wiggling and bouncing

[Bob Maassel]

You might check to see if the line between the engine and the gauge is full 
of oil or not. If you have even the slightest leak near the gauge the air 
will get displaced with oil and then the gauge will follow the pulses from 
the pump. It is the air compressing that dampens the movement.

Bob Maassel
59 TR3A TS39869L
tr3abobm77 at frontier.com

--------------------------------------------------
From: "Brad Kahler" <bkahler1 at gmail.com>
Sent: Friday, May 03, 2013 8:58 PM
To: "Randall" <tr3driver at ca.rr.com>
Cc: "Triumphs" <Triumphs at autox.team.net>
Subject: Re: [TR] gauges- wiggling and bouncing

> I certainly hope a spun bearing is not the problem either!
>
> It's a new engine, probably no more than 1500 miles on it so far.  Runs
> great with no noises (yet).  Not to say the rest of the car doesn't make
> any noise as it a real rattle trap.
>
> I'm beginning to think the speedometer needle problem now resides inside
> the head of the speedometer.  Since I removed the clamp the cruise control
> is working pretty much perfect.
>
> I guess the same time I pull the oil pressure gauge I'll pull the
> speedometer and check it out.
>
> Thanks for the feedback.
>
> Brad
>
>
>
> On Fri, May 3, 2013 at 7:28 PM, Randall <tr3driver at ca.rr.com> wrote:
>
>> ---- Brad Kahler <bkahler1 at gmail.com> wrote:
>> > The first is the oil pressure gauge which is the mechanical type.  The
>> > readings seem to be accurate but the needle quivers or vibrates like
>> crazy.
>>
>> I sincerely hope this is not the problem : I've seen that with an engine
>> that had spun a bearing.
>>
>> > The second problem is the speedometer.  The needle fluctuates about 1 
>> > to
>> 4
>> > mph while driving. I'm certain it's the speedometer cable.  The cable 
>> > is
>> > brand new
>>
>> FWIW, my problem was caused by the odo & trip meter mechanisms binding,
>> which put a periodic load on the cable, causing the new cable to wind up
>> and unwind.  But it was bouncing a whole lot more than 1-4 mph.
>>
>> Randall
>>
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