E50 pinging bad, timing is good, points starting to open at 16-18mm before TDC , it’s a 78 Newport with oil injection. Would too high of octane cause this?
E50 pinging bad, timing is good
Re: E50 pinging bad, timing is good
Too low octane could possibly cause pinging .
Check for carbon in the combustion chamber and maybe try new spark plug .
Re: E50 pinging bad, timing is good
> Keno Rojas Wrote:
> -------------------------------------------------------
> E50 pinging bad, timing is good, points starting to open at 16-18mm
> before TDC , it’s a 78 Newport with oil injection. Would too high of
> octane cause this?
Is it stock?
Re: E50 pinging bad, timing is good
Yes it’s stock. Carbon was cleaned off combustion chamber and piston a month ago. I will try different plug
Re: E50 pinging bad, timing is good
Flywheel torqued properly?
Re: E50 pinging bad, timing is good
Check for Crank play, maybe one of the connecting rod bearings gave way.
Re: E50 pinging bad, timing is good
Pinging or clunking ?
Turn fly wheel back-and-forth by hand and see if you can hear feel a real bad clunk, it could be wristpin small crank end worn
Re: E50 pinging bad, timing is good
What did you time it with, your eyeball or a guess. I would like to see the plug.
Re: E50 pinging bad, timing is good
> Keno Rojas Wrote:
> -------------------------------------------------------
> E50 pinging bad, timing is good, points starting to open at 16-18mm
> before TDC ,
Do you really mean to say sixteen to eighteen millimeters? This is important.
Re: E50 pinging bad, timing is good
Yes millimeters, pic taken from Haynes Puch maxi moped workshop Manuel
Re: E50 pinging bad, timing is good
B6hs
Re: E50 pinging bad, timing is good
I am not familiar with the method of timing an engine by measuring the distance of a punch mark on a flywheel to approximately the joint line in crankcases.
Re: E50 pinging bad, timing is good
How do you generally time an E50?
Re: E50 pinging bad, timing is good
Ha! (edited)
Re: E50 pinging bad, timing is good
Find tdc and then measure 16-18 mm before it (to the right) then mark it on the flywheel and run it with a timing light.
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