Breakdown

[william crosby]

Today van broke down just died and would not rev.Only ever happened one before in winter  and i just pumped the primer bulb and off it went this time no joy.Took the filter off and it looks like its full of spiders webs very fine silky web like material.This is the only time its ever looked like this since i have changed to asm and the filter has only lasted 3 months again is using asm.They last 12 months any other time.

[photoman290]

cant help with the problem,but it might be worth while doing some tests with different filter elements. i have had similar problems with filter elements on my waste oil burner and my generator recently. both  of them had the element dissolve due to thinners in the waste oil and acetone in the generator fuel. i suspect different filters have different glues.

the one in the generator totally dissolved the plastic housing. i did have way to much acetone in the fuel though 20%. will reduce it to the 3% recommended and drop an old filter element in some fuel and see what happens.

i went for a job at a filter factory once so got to see the whole process. they use a hot melt glue to stick the pleated part to the housing.

[Tony]

Did you get a full reaction on that batch?  If not it may be monoglycerides - the infamous HMPEs a lot of us complain about.  Do you water wash or settle (the former supposedly eliminates the problem - though I remain sceptical!)

[thewormman]

Took the filter off and it looks like its full of spiders webs very fine silky web like material.

Will is it the same stuff Mark is talking about here:

http://www.biopowered.co.uk/forum/index.php/topic,1210.0/topicseen.html

[knighty]

I know I was on veg so it's different....

but I always blocked filter after it had been cold for a long time and then warmed up a bit.... guess the crap in the tank lossend off and moved along into he filter...