Re: [MV] More test results ... re M151 mystery miss

From: Fred Martin (mung@in-touch.net)
Date: Tue Feb 08 2005 - 08:28:09 PST


Won't a timing light hooked up to it show the mark dancing all over the
place if the chain has a lot of slack? Fred Martin

JTravis wrote:

> Nahh. It couldn't be THAT easy. Refresh my memory; does this motor
> connect the crankshaft to the camshaft by a timing chain, or direct
> gears? 'Cause it sounds like a streched timing chain that is letting
> it get just enough slack under load to screw with the timing, but not
> enough to show when turning the motor over by hand. Is it a chain?
> If so, a new chain and gears (crank and cam) may just cure what ails ya!
>
> Jay
>
> Mil-Veh Co. wrote:
>
>> Attempted to start engine, but engine bucked as if
>> timing too advanced. Got a little backfire through
>> the carburettor, this has been typical since problem
>> started. Hard starting since miss on #2. So I used
>> some ether and it started up, but ran rough. To me, it
>> starts like its out of time, I say this because it
>> resists or drags on the starter, which to me indicates
>> overly advanced timing...but it will run and seem to
>> have about 60% power on test drives, won't get any
>> better by moving dist. around, only gets worse.
>>
>>
>
>
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