Saying hello! & Rebuild

Questions regarding the DR750

Re: Saying hello! & Rebuild

Postby H_Lime » Tue Oct 18, 2011 10:28 pm

Tanks...

The original tanks were fairly grotty so i managed to track down some decent ones from a lad in Donegal. Upon a cursory look they seemd to have some surface rust in them but not a lot.
Last night i peeled off the sprayers masking on the cap threads and had another look inside with the aid of torch and found more rust than i thought there'd be.
Now i understand rust removal at this stage with them all painted and decals on is doing things arseways but needs must.

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Looks worse than it is but i still want it sorted. One thing thats obvious in this thread is that i-dont-do-rust :o

First step would be to remove the loose rust.
I thought about what to use :crazy: . I had previously reckoned on using some small link chain but the idea of snagging the fairly delicate pipes inside i was a real possibility.

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Heres a pic that demonstrates it clearly.

What i needed was something metal small and thin with a sharpish edge that when shook would be light enough to not dent the metal, would not get caught or snagged and would be edgy enough to remove rust.

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This fit the bill :tup:

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Stopped in the bank on the way home and four euros later....

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Shake for your life for as long as you can :x After five minutes this was like some sort of French Foreign Legion cadet torture....
A half hour later and drenched in sweat...

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Took another few minutes to shake all the cent out as the filler collar extends inside the tank. Lots of rust dust eh, very effective this and well worth doing so. You can see just how bloody fine that shit is, its almost stained the steel rule. This stuff would deffo get south of the fuel filter.

Onto the other tank

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Some remainder of blast material in here i think.

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In total i got this much out of both tanks.

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Hard to photo the inside of tanks but after an hour of jumping around the garage lol they looked like this inside.

Next step is kill the rust

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Used this gear on other bits on bobs and it does the job. Its a concentrate that you had nine pasrts water to. I made it stronger by only making 13 litres which i split between the tanks.

I find this gear works best when warm so they are in the house and i will change the angle the tanks rest at over 48 hours to kill any rust on all surfaces.
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Re: Saying hello! & Rebuild

Postby spendango » Tue Oct 18, 2011 11:11 pm

cant believe you had them painted before you did this ARE YOU MAD :lolno:
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Re: Saying hello! & Rebuild

Postby H_Lime » Tue Oct 18, 2011 11:28 pm

Relax yer caks there Spendango, breathe... :crazy: :lol:
This stuff doesnt attack paint nor will get on the paint, no drama...? All i do is drain it, dry it, flush with petrol and game ball.
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Re: Saying hello! & Rebuild

Postby spendango » Wed Oct 19, 2011 8:09 am

:tup:
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Re: Saying hello! & Rebuild

Postby H_Lime » Wed Oct 19, 2011 10:30 pm

Tanks part deux...

So after 26 hrs left soaking in a slightly stronger solution than the bottle suggests i drained and flushed the tanks with water.
They are dry now thanks to my compressor and herselfs hairdryer. In the hot press now to stop any flash rusting.

So just to recap, from this

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to

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to this

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All without any damage! (Spen) :tup:
Id absolutely recommend this method to anyone with rusty tanks. As the pics show all loose particles are removed and the rust has been totally killed chemically. Glad this is sorted now.
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Re: Saying hello! & Rebuild

Postby kyle » Wed Oct 19, 2011 10:46 pm

that looks to have done a good job MR Lime :tup:

have a look here for a slightly more .....ermmmmm.....scientific way :D

http://www.donkeybike.com/forum/viewtop ... =25&t=2122
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Re: Saying hello! & Rebuild

Postby H_Lime » Wed Oct 19, 2011 11:12 pm

Kyle, linky no good, have to sign up and stuff.
Is it the baking soda solution, battery charger and sacrifical piece of iron method?
I understand theres a rake of ways to do it (hell you even fill it with mollasses or vinegar) ,but the fill with something non viscious and drain it a day later option appealed the most and was the least invasive (and works a treat too :D )

Hows yer own fine steed treating ya? Is she all sorted now or you fettling the new interloper? :shh:
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Re: Saying hello! & Rebuild

Postby kyle » Fri Oct 21, 2011 11:45 am

sorry about the linky...
yes its the electrolisses method :D
i'm currently stripping the tanks i got off Nug to get ready for paint..they had been sprayed with some kind of rubberized compound...i think it would have really protected them well but it looked naff and is really hard to get off :crazy:

the yammie will soon be on the road so then i can get the dr sorted........again ;)
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Re: Saying hello! & Rebuild

Postby spendango » Fri Oct 21, 2011 12:58 pm

What are you doing with the TT at the minute
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Re: Saying hello! & Rebuild

Postby kyle » Sat Oct 22, 2011 10:30 am

spendango wrote:What are you doing with the TT at the minute


:shh: dont want to hijack Mr Limes thread too much Spen so have a look here :shh:
viewtopic.php?f=8&t=723
Last edited by knobblywobbly on Sat Oct 22, 2011 10:35 am, edited 1 time in total.
Reason: Changed the link for you.
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