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Old 17-03-2014, 12:49 AM
stevieturbo stevieturbo is offline
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Join Date: Nov 2005
Location: Northern Ireland
Posts: 80
Default Re: Testing methanol purity ?

Tanks are sealed as tanks normally are. Methanol drum has it's normal cap, and was barely opened 3-4 times prior to this usage, new 200L drum.

Both sets of injectors failed within a few hundred miles...if even that much.

One set had been used in another car for a a few years with normal petrol...weeks in the other car and they actually stopped working.

Brand new set replaced them...same again.

They actually got to the point where when any pressure at all was applied across the injector ( testing with air afterwards ), the injector would click once, then remain shut as long as there was pressure applied. Even 3-4psi. Free air, it would open and close on command

All 4 ended up like that.

Several months on when same happened the second set. We went back to the first set, and they had actually started working again fairly normally testing on the bench.
No way were they going back in though

Both sets are away to get tested and prelim results are they flow like F all, with huge variations across all 8. But they are actually working again as far as opening and closing go.

Very weird scenario. The secondary injectors on the same car seemed to work fine throughout.

The purity query was more about the methanol separating from the petrol. I'm assuming most likely a high water content would cause this ?

Also, what would cause such problems to an ID1000 injector ? water ? methanol ?

Ironically...we opted for mixing with the fuel on this car over concerns about WI pump systems failing.

The irony !
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