Author Topic: Removing Fuel Screen  (Read 1284 times)

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Offline 550Resto

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Removing Fuel Screen
« on: March 30, 2016, 05:37:14 PM »
Hello all, I'm going to try and tackled my fuel tank this weekend, however I'm at an bump in the road. I am having trouble getting the screen out of the fuel tank. It's a 78 550K. After I remove the petcock I find that the screen is flush with the tank which doesn't give much in the way of removing the screen. Looking for any tips or tricks short of ripping it to shreds getting it out and having to get a new one. Tank has been sitting for 30 years so there is some built up varnish hence the tank cleaning. I also wanted to see if using a cork to plug the petcock end would be sufficient when using acetone? I can't seem to find a small enough rubber stop.

http://www.westernhonda.com/fiche_section_detail.asp?section=2451813&category=Motorcycles&make=Honda&year=1978&fveh=131104
Number 3 in the fiche
 
http://s1168.photobucket.com/user/550Resto/media/tank2_zpsuafvcypr.jpg.html

Screen can be seen here

Offline evanphi

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Re: Removing Fuel Screen
« Reply #1 on: March 30, 2016, 07:11:22 PM »
Tank has been sitting for 30 years so there is some built up varnish hence the tank cleaning.

There's your answer.

Just replace it. I am buying a new screen for the 750 tank I'm redoing rather than trying to clean it... even though it's metal.
--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

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Calculating the correct input circumference for digital speedometers connected to the original speedometer drive

Offline madmtnmotors

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Re: Removing Fuel Screen
« Reply #2 on: March 30, 2016, 07:29:26 PM »
Looking for any tips or tricks short of ripping it to shreds getting it out and having to get a new one. Tank has been sitting for 30 years

You need a new screen. To remove the old screen I usually insert a sharp pick, awl, or even a finishing nail between the edge of the filter and the inside of the opening in the fuel tank. Once the edge of the filter can be grasped with needle nose pliers, twist and pull the old filter free. The new screen (from Honda) comes with a new petcock gasket too.
TAMTF...


Wilbur



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Offline flatlander

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Re: Removing Fuel Screen
« Reply #3 on: March 31, 2016, 02:56:11 AM »
yes what the guys say... it's most likely going to be destroyed in the process. when you replace it make sure you get the correct one for your petcock and tank. be aware that the tank and petcock may not be matching the "year" of your bike so really check them carefully against the partslist (don't ask how i found out!).

Offline DaveBarbier

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Removing Fuel Screen
« Reply #4 on: March 31, 2016, 05:41:07 AM »
I've heard of people threading a bolt into the filter hole and pulling it out. I haven't tried that, might work. Worth a shot.

Your tank doesn't look that bad. And your filter seems to be in fine shape. I'd reuse it if you can pull it out.

If you do try that and it works, let me know! Maybe post a picture too. I've never seen anyone actually do that so it would be nice to know. :)

Offline mystic_1

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Re: Removing Fuel Screen
« Reply #5 on: March 31, 2016, 05:41:55 PM »
Stick a long wooden dowel into the tank through the filler and push the screen out from the inside.

mystic_1

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Offline DaveBarbier

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Re: Removing Fuel Screen
« Reply #6 on: March 31, 2016, 06:22:34 PM »
Stick a long wooden dowel into the tank through the filler and push the screen out from the inside.

mystic_1

Don't think you'd be able to do that. Not enough leverage. Risks breaking the dowel and/or filter.

Offline 550Resto

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Re: Removing Fuel Screen
« Reply #7 on: April 01, 2016, 08:37:07 PM »
Got it out with a small pick to get it loose from the sides of the bung then used needle nose pliers to get it out. Got one on order. How would one go about cleaning the pet cocktail of old varnish? I used acetone on the inside of the tank which cleaned the old varnish.

Offline evanphi

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Re: Removing Fuel Screen
« Reply #8 on: April 04, 2016, 08:06:41 AM »
Disassemble the petcock and remove (and plan to replace, for good measure) any rubber bits. Then a good soak in acetone.
--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

CB750 Shop Manual (all years), searchable text PDF
Calculating the correct input circumference for digital speedometers connected to the original speedometer drive