Inline fuel filter

Need technical help - Restoration help and tips, engine rebuild or just offer your knowledge or services - drop it in here.

Inline fuel filter

Postby GNC » Wed Nov 25, 2009 12:38 am

Since changing to 10%E blend fuel have noticed any paint inside filler cap neck & on inside tank have softened & is starting to peel away (coincidence?) I had tank off last week & noticed less flow out of hoses than I would expect.(have filters on taps inside tank) I'm thinking these are getting blocked.
Any thoughts on If I were to remove tap filters & use an inline filter like pictured

Image

These filters have no flow direction marked... would it be best to collect debri inside the timble like element or on the outside?
ID of filter nipple is 3/16 whereas fitting at tap is 15/64. Would this difference cause concern?
Am considering using some type of inline to allow rubbish to come out of tank & be collected for easy cleaning.
These filters shown are IMO too bulky but appear to be the best quailty avalible locally
T140E
User avatar
GNC
Site Admin
 
Posts: 654
Joined: Wed Jun 24, 2009 8:18 pm
Location: NZ

Re: Inline fuel filter

Postby Welsh Wizard » Wed Nov 25, 2009 7:18 am

GNC , I have heard that some of the blends can soften a fibre glass tank to the point they leak and become scrap.
User avatar
Welsh Wizard
Global Moderator
 
Posts: 1400
Joined: Wed Jun 17, 2009 4:28 am
Location: Far Side of the World

Re: Inline fuel filter

Postby MOUSE » Wed Nov 25, 2009 7:40 am

When they changed to unleaded here i don't know what was in the first mixes, but an accidental spill over the tank ruined my paint, like it melted off as if some reaction between clear coat and the crap gas. :166

An in line filter is going to be easier to check and clean than in- tank ones as you don't have to drain the tank, and less fiddlier than in- bowl ones.
"My arthritis has gotten so bad I can hardly grip anything, my cataracts seem to get worse every day, I have gout in my right leg and can't bend my knee and I can't hear anything.
But thank God I can still ride
User avatar
MOUSE
 
Posts: 1298
Joined: Wed Jun 24, 2009 9:43 am
Location: 4,842 kilometers from Antartica

Re: Inline fuel filter

Postby dig » Wed Nov 25, 2009 8:16 am

most of todays gas will do the melt thing on enamel paint and inline filers are the knees bees, i would have the flow from the tank going to the outside of the filter . :151
ps i use a small plastic cheap,about $6-00 inline filter that is sealed an cant be disassembled but you can back flush it an use again and again :209
User avatar
dig
Gone But Not Forgotten
 
Posts: 1141
Joined: Wed Jun 24, 2009 8:34 am
Location: new zealand

Re: Inline fuel filter

Postby Tman » Wed Nov 25, 2009 8:39 am

Juice filters are always worthwhile, and those big alloy dismantleable ones are excellent (if a bit obtrusive on a classic) although having such large dia spigots can cause problems with the fuel line if the tap spigot is much smaller.
Normally the direction of flow is marked, but you need the shite to gather around the outside of the element. On those useful glass ones you can see both if you have juice and how much crap's built up.
Tman
 
Posts: 564
Joined: Sat Nov 07, 2009 10:38 am

Re: Inline fuel filter

Postby sfb350 » Wed Nov 25, 2009 5:37 pm

I put an in line filter on all my bikes, you can get small clear plastic ones for about £1 or so and when I'm being sensible I remember to keep one spare in the tool kit (silly not to at that price).

I read in Classic Bike magazine that Hitchcocks (Enfield dealer/parts specialist) have withdrawn their fibreglass tanks because one customer had two of them start to dissolve. Although only one customer has complained of this problem, they aren't selling any more until they have investigated. There are suggestions that it is due to ethanol but nothing conclusive at the moment.
sfb350
 
Posts: 117
Joined: Wed Sep 02, 2009 8:31 pm

Re: Inline fuel filter

Postby GNC » Sat Nov 28, 2009 10:47 pm

Can anyone recommend a replacement/improvement fuel tap to 1 shown?

Image

These were new 1yr ago. Upon investigating poor flow I discovered this

Image

Cheers
T140E
User avatar
GNC
Site Admin
 
Posts: 654
Joined: Wed Jun 24, 2009 8:18 pm
Location: NZ

Re: Inline fuel filter

Postby BigBobW » Sat Nov 28, 2009 11:38 pm

Hell, how much gas do you NEED? (Only kidding.. :) )
"I've never met a motorcycle or pizza I didn't like"
User avatar
BigBobW
 
Posts: 325
Joined: Thu Jun 25, 2009 10:30 am
Location: New Jersey USA

Re: Inline fuel filter

Postby L.A.B. » Sun Nov 29, 2009 12:15 am

GNC wrote:Can anyone recommend a replacement/improvement fuel tap to 1 shown?


You can get UK made brass conical seat taps that are similar to the originals, available from Len Craig http://www.lencraigandsons.co.uk/ = eBay seller 'electrovectors'.

These conical seat taps have a much better flow rate than the nasty items with the tubular self-expanding rubber seals.:

http://cgi.ebay.co.uk/UK-Made-Main-Petr ... 483830d0da

http://cgi.ebay.co.uk/UK-Made-Reserve-P ... 483861575b




GNC wrote:These were new 1yr ago.


In the past, I have run a 5mm drill bit through those tube seal taps to clear the excess seal material away and so restore the flow.
User avatar
L.A.B.
 
Posts: 171
Joined: Mon Jun 29, 2009 8:35 pm
Location: Norfolk, UK.

Re: Inline fuel filter

Postby GNC » Sun Nov 29, 2009 1:23 am

L.A.B. wrote:I have run a 5mm drill bit through those tube seal taps to clear the excess seal material away and so restore the flow.


:123 Cheers
T140E
User avatar
GNC
Site Admin
 
Posts: 654
Joined: Wed Jun 24, 2009 8:18 pm
Location: NZ

Next

Return to The Classic Bike Workshop

Who is online

Users browsing this forum: No registered users and 2 guests