Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Black Watch Alpine


User Tag List

+ Reply to Thread
Results 1 to 15 of 15
Like Tree12Likes
  • 2 Post By outlander
  • 1 Post By berg243
  • 2 Post By Gapped axe
  • 1 Post By Shearer
  • 1 Post By rewa
  • 2 Post By rupert
  • 1 Post By chindit
  • 1 Post By outlander
  • 1 Post By timattalon

Thread: Anyone ever repaired a rusty motorcycle tank (Interior) ?

  1. #1
    Member
    Join Date
    Nov 2014
    Location
    Christchuch New Zealand
    Posts
    3,178

    Anyone ever repaired a rusty motorcycle tank (Interior) ?

    I am giving my pride and joy a bi of a refurb. It has been having fuel starvation issues and it was tracked back to corrosion from the inside of the tank blocking the fuel filter. Filter replaced, and carbs stripped and cleaned cleaned. Now all I need to do is re line the inside of the tank so the problem is fixed rather than band aid it by changing the filter.

    The tank I need to do is a small 3 litre sub tank that is under the seat as the main tank was done a few years back when I had it repainted.

  2. #2
    Member
    Join Date
    Nov 2014
    Location
    Central Otago
    Posts
    903
    There are kits available or cleaning and preserving fuel tanks. Check online.

  3. #3
    Member
    Join Date
    Aug 2017
    Location
    Taranaki
    Posts
    577
    Quote Originally Posted by timattalon View Post
    I am giving my pride and joy a bi of a refurb. It has been having fuel starvation issues and it was tracked back to corrosion from the inside of the tank blocking the fuel filter. Filter replaced, and carbs stripped and cleaned cleaned. Now all I need to do is re line the inside of the tank so the problem is fixed rather than band aid it by changing the filter.

    The tank I need to do is a small 3 litre sub tank that is under the seat as the main tank was done a few years back when I had it repainted.
    I've just done a 6 litre steel Harley tank. Depending on the severity of the rust, you could fill it with white vinegar and leave for a few days, shaking occasionally. I've also used a few handfuls of gravel through the filler cap and given it a robust shaking and a thorough rinsing thereafter. Works for me and costs nothing. Resealing would be optional depending on the finish left in the tank.
    A330driver and rewa like this.

  4. #4
    Member
    Join Date
    May 2017
    Location
    southland
    Posts
    3,065
    have done the stone trick unless rust is completely gone it will quickly corrode again if not sealed completely. what about having a new tank made in stainless should only be 2 to 3 hundred dollars and end of rust problem.
    rewa likes this.

  5. #5
    Member Gapped axe's Avatar
    Join Date
    Jun 2012
    Location
    Lake Tarawera
    Posts
    3,414
    Have done it by using gravel to loosen any rust. Then got a kit from Rotorua fiberglass especially formulated for the job ($24) and job done brilliant.
    outlander and rewa like this.
    "ars longa, vita brevis"

  6. #6
    Member Shearer's Avatar
    Join Date
    Sep 2013
    Location
    Tasman
    Posts
    3,072
    Quote Originally Posted by outlander View Post
    I've just done a 6 litre steel Harley tank. Depending on the severity of the rust, you could fill it with white vinegar and leave for a few days, shaking occasionally. I've also used a few handfuls of gravel through the filler cap and given it a robust shaking and a thorough rinsing thereafter. Works for me and costs nothing. Resealing would be optional depending on the finish left in the tank.
    Don't know a lot about Harleys but that wouldn't get you far would it?
    outlander likes this.
    Experience. What you get just after you needed it.

  7. #7
    Member
    Join Date
    Mar 2018
    Location
    Fielding-ish
    Posts
    304
    A small-medium galv-chain works well for scouring-out the rust. Any "liner" has to be fastidiously applied (think Don-Brash -anal) to eliminate thin-spots of liner. Overdo any/all the instructions and especially the scouring. You only get one-shot at doing it properly most of the time
    outlander likes this.

  8. #8
    Member
    Join Date
    Mar 2012
    Location
    Christchurch
    Posts
    585
    In the distant past, I just scoured out the surface rust (after having left the tank without fuel and the top off) with small nuts and bolts. I never had a return problem with rust, probably because the tank had fuel and fuel vapour inside it. I thought about a coating but the coatings for the inside of the fuel tank had a reputation for flaking off and blocking the carb jets (good for selling but not for using). What about using phosphoric acid wash to leave a rust resistant layer on the steel of the tank. It does a good job on car bodies and it will not block carb/injector jets.
    outlander and rewa like this.

  9. #9
    Member
    Join Date
    Jul 2016
    Location
    Rotorua
    Posts
    104
    Por is one treatment, never used it but I think it comes in a kit with a product to remove the rust and and another to coat the inside after descaling.
    spada likes this.

  10. #10
    Member
    Join Date
    Aug 2017
    Location
    Taranaki
    Posts
    577
    Quote Originally Posted by Shearer View Post
    Don't know a lot about Harleys but that wouldn't get you far would it?
    It's a 1976 XLCH. Kick start only and with it's original peanut steel tank...100 km or there abouts.
    rewa likes this.

  11. #11
    Member
    Join Date
    Nov 2014
    Location
    Christchuch New Zealand
    Posts
    3,178
    Quote Originally Posted by outlander View Post
    I've just done a 6 litre steel Harley tank. Depending on the severity of the rust, you could fill it with white vinegar and leave for a few days, shaking occasionally. I've also used a few handfuls of gravel through the filler cap and given it a robust shaking and a thorough rinsing thereafter. Works for me and costs nothing. Resealing would be optional depending on the finish left in the tank.
    My issue is it is the underseat auxiliary tank and has three openings, a 10mm hose fitting, and a 5mm Hose fitting for the intake and a 5m hose fitting for the outflow. So this means whatever I use it will need to be able to be removed, and will need to be liquid as I do not think anything slid will be able to be extracted.

    Name:  IMG20190830103446.jpg
Views: 90
Size:  1.67 MB

  12. #12
    Member spada's Avatar
    Join Date
    Oct 2012
    Location
    Christchurch
    Posts
    171
    Workmate had a leaky seam and rust inside his Z1000 tank.

    He got a POR15 kit and followed the instructions to the letter.

    I was sceptical to say the least but it did the job and still going strong 3 years later no leaks no rust.

    Basically its liquid like paint pour in, swish around, pour out, let cure. So no problems with multi in/outlets.

    https://www.por.co.nz/products/motor...ank-repair-kit

    Would I use it on mine ---- Definitely

  13. #13
    Member
    Join Date
    Jun 2019
    Location
    Ararimu, Auckland
    Posts
    40
    I used the POR 15 product on a 1968 Chrysler fuel tank some 4 years ago - you can't go buy a new one of those in NZ LOL. I followed the instructions to the letter and it sealed all the pinholes - made it safe to use again and the fuel gauge now also works as the sender unit it as tight as it should be. The tanks has never leaked again - shows no signs of weeping anywhere. I would use the stuff again in a flash - good stuff!
    BUT - I did follow the instructions to the letter - didn't miss any steps or shorten any times they recommended. Its a bit slow waiting for some curing yet it WORKS.

  14. #14
    Member
    Join Date
    Mar 2018
    Location
    Fielding-ish
    Posts
    304
    Quote Originally Posted by timattalon View Post
    My issue is it is the underseat auxiliary tank and has three openings, a 10mm hose fitting, and a 5mm Hose fitting for the intake and a 5m hose fitting for the outflow. So this means whatever I use it will need to be able to be removed, and will need to be liquid as I do not think anything slid will be able to be extracted.

    Attachment 118841
    What about "steel-shot"...and if you knew someone at a paint-store....mechanical-shaker would do a great job....o/wise, ear-plugs and a sub-title movie...or a lot of 'dancing'

  15. #15
    Member
    Join Date
    Nov 2014
    Location
    Christchuch New Zealand
    Posts
    3,178
    Quote Originally Posted by rewa View Post
    What about "steel-shot"...and if you knew someone at a paint-store....mechanical-shaker would do a great job....o/wise, ear-plugs and a sub-title movie...or a lot of 'dancing'
    I suggested this to my brother (has done something like this too...) I had some steel bearings about the size of oo Buckshot. He suggested that it needed to be "not round" the shape should have an abrasive shape like a stone or nuts....so small nuts it is......
    outlander likes this.

 

 

Similar Threads

  1. Rusty boat trailer.
    By Wildman in forum Outdoor Transport
    Replies: 18
    Last Post: 23-12-2018, 01:20 PM
  2. Rusty barrel at my Remington 783
    By GermanForester in forum Firearms, Optics and Accessories
    Replies: 3
    Last Post: 15-06-2018, 05:58 PM
  3. Getting motorcycle re-registered RESULTS!
    By Beetroot in forum Outdoor Transport
    Replies: 1
    Last Post: 14-05-2016, 01:45 PM
  4. little rusty ......
    By stumpy in forum Shooting
    Replies: 4
    Last Post: 18-08-2014, 09:31 PM
  5. Replies: 31
    Last Post: 16-01-2013, 11:06 AM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!