[Roadsters] Shaking Engine

[J Sandhoff]

Hi Gerry,

Like others said... go thru the basics first.
A shaking engine, ruling out balance issues, can be from a power
imbalance between cylinders. I'd make sure your mechanic has done the
basics: besides for basic tuneup and ruling out misfires (a wonky
distributor - including worn or misgapped points or a bent shaft - can
play havoc). Check the dwell; if you have access to one put it on an
ignition 'scope and check spark plug firing voltages; check the
timing; do a hot compression check. Check the valve clearances. If
you're still running smog timing (0 degrees) that's a whole 'nother
discussion.

Don't totally rule out bad engine mounts. 4 bangers do bounce around a
bit all on their own, and bad mounts don't help.

And check the dashpot oil in the carbs. It could be as simple as that.

-- John
      John F Sandhoff    jsandhoff at gmail.com    Sacramento, CA


On Fri, Feb 16, 2018 at 2:32 PM, Lars Tungen via Datsun-roadsters
<datsun-roadsters at autox.team.net> wrote:
> My engine shake a lot too. But this is a 1600 push rod...
>
>
> 2018-02-16 20:38 GMT+01:00 Gerry Royston via Datsun-roadsters
> <datsun-roadsters at autox.team.net>:
>>
>> I've had my 2000 Roadster for over a year and the engine has always shaken
>> a lot when idling.  This is starting to bother me.  My mechanic says it
>> might need a new timing chain which might be a good idea regardless.  He
>> tells me it's not related to engine mounts or anything like that.  Just
>> wanted to check to see if anyone else has had a similar issue before turning
>> it over to him for an expensive timing chain job.  Thanks for your help.
>>
>>
>> Gerry Royston
>>
>>
>>
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>
>
>
> --
> mvh
> Lars Tungen
> Abaris Consulting AS
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