Up in smoke... Bus fires... don't let it happen to you! FAQ

Desertbusman · Posted: Sat Oct 13, 2012 7:03 pm Post subject:

Yes

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spicolibus · Posted: Mon Oct 15, 2012 10:02 am Post subject: In Line Fuel Filter

So I was having a conversation with a air cooled VW owner about the fire I had. I started talking about the fuel lines and the in-line fuel filter. When I told him I use the plastic ones he almost jumped out of his chair.
He said the cheap plastic filters are probably what causes a lot of fires in VWs and he doesn't even understand why they would make them. He said that gasoline (a hydrocarbon) when introduced to a plastic causes friction and electrostatic shock.
What makes me think he is correct about this is when I got home to look at the pile of burnt pieces I have pulled from the bus I took a look at the fuel filter and it has a rupture point in it and no other problems (except a little bit of melt).
I am curious if other people agree that this could be the starting point of a lot of fires including mine Question

He said to always use a glass fuel filter in-line. I will look into this more:wink:
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babysnakes · Samba Member Joined: August 19, 2008 Posts: 7150

If the filter was under the fuel tank and outside of the engine compartment along with periodic replacement of the fuel filter, there would not be an issue with it. I've been running those cheapo filters for decades.

Wildthings · Samba Member Joined: March 13, 2005 Posts: 52319

I am not a lover of plastic filters, especially the ones typically sold at VW parts houses that have no swedges to hold the hoses on and are typically installed between the pump and the carb on Type 1 engines. A metal filter before the pump is okay inside the engine compartment if well located, while any filter adding weight to a Solex carb inlet fitting is not. Putting the filter underneath eliminates many problems but not all. I have had metal filters rust through when a truck of mine was parked for several years while I worked out of town and have seen plastic ones with visible cracks, but can't off hand remember seeing a plastic one that was leaking.

I still like the sturdy little Ford filters that were made to be used in the engine compartment.

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busdaddy · Posted: Mon Oct 15, 2012 12:00 pm Post subject:

The plastic filters are a danger when mounted between the pump and carb, the hot environment in the engine compartment isn't good for it either so even upstream isn't good in the compartment. I too have never had an issue with even a plastic filter under the tank as Snakes mentions.

Now those glass filters are a whole different story, multiple sealing surfaces and materials that expand at different rates as well as being fragile scares the crap outta me, if plastic worries you get an all metal one from your FLAPS but leave the glass ones for the magazine cars.
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spicolibus · Posted: Mon Oct 15, 2012 12:35 pm Post subject:

Yeah, the idea of a glass filter scares the crap outta me as well.

Will the carb get too clogged too quickly if I don't use a filter? I'd rather not use a plastic one after what happened unless I can put it under the bus (on that line coming out of the petrol tank) but I think that line is larger diameter and won't fit one of those horrible plastic filters???
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Wildthings · Samba Member Joined: March 13, 2005 Posts: 52319

aryue · Posted: Tue Oct 16, 2012 4:45 am Post subject:

A Hastings 262-GF1 is a metal canister filter with 1/4" barbs - i.e. slightly oversize. If you find a metal bodied filter that a perfect fit with 5.6 mm fuel line, let me know.

http://www.summitracing.com/parts/HHT-GF1/

Mount the fuel filter above the transaxle. It's an awkward location - but it keeps the filter out the engine compartment.

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spicolibus · Posted: Tue Oct 16, 2012 7:37 am Post subject:

sorry for my ignorance, but the rubber fuel line coming from the fuel tank under the bus to that attaches to the metal line going through the firewall is 5.6mm inner or outer diameter? A metal in-line fuel filter with a 1/4" barb should work with clamps?
thanks for clarification Confused

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babysnakes · Samba Member Joined: August 19, 2008 Posts: 7150

Desertbusman · Posted: Tue Oct 16, 2012 2:19 pm Post subject:

babysnakes · Samba Member Joined: August 19, 2008 Posts: 7150

I don't often disagree, but pop that sucker in hot water and it will stretch. My local FLAPS don't sell metric. Confused

I asked why, most imports are metric(I think), they sell standard widths. You have to look long and hard to find the right dia.

Desertbusman · Posted: Tue Oct 16, 2012 8:34 pm Post subject:

EverettB · Posted: Thu Nov 22, 2012 9:39 pm Post subject:

There was a multiple page discussion here about an engine not starting after engine fire repairs.

This was not an engine fire topic and it was moved to
http://www.thesamba.com/vw/forum/viewtopic.php?t=535767
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busdaddy · Posted: Fri Apr 12, 2013 3:11 pm Post subject:

Well damn, it seems all J30R9 hose isn't created equal, here's the stuff from Advanced fluid solutions (Silicone hose workd on Ebay UK) after 8 months in service Mad

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telford dorr · Posted: Fri Apr 12, 2013 3:40 pm Post subject:

Off-the-wall question: has anybody ever seen, or considered making a set of brass replacement tubes for the fuel pump (2) and carb (1) to accept 1/4" SAE 30R9 FI hose? Or maybe solder a brass sleeve over the stock fittings to increase their OD to 1/4"? Seems silly to fight poor quality fuel line when good quality line is available in 1/4". Just a thought...
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BusterBrown · Posted: Fri Apr 12, 2013 3:45 pm Post subject:

bigbore · Posted: Fri Apr 12, 2013 3:57 pm Post subject:

I just got a 5 meter roll of 5.5mm hose in from world pac i have never seen this hose before its made in germany on the hose you can see NBR I don't know if that is the maker but Iam going to give it a try my cost was 45.00 for the roll it not cheep.

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busdaddy · Posted: Fri Apr 12, 2013 4:21 pm Post subject:

Don't feel bad, the Goodyear I bought to today was ~$46 my cost for 10' after taxes. Made in the EU and this batch doesn't have the blue liner or seemingly any liner, why can't someone make metric size? Confused

Telford, there was a source posted somewhere here for 1/16" NPT hose barbs, with those you get a threaded in connection that won't pull out and a real 1/4" hose barb.

I'll add to that other thread Buster, thanks.
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