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D2 5U Pony Tank help
D2 5U Pony Tank help
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Posts: 6
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Thank you received: 5
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2 years 5 months ago #236967
by WClay
Hey folks, just joined - my D2 (5U) has been sitting for a couple of years because of a rusted out Pony Tank. When I say rusted out, I mean it has no smooth surfaces on the inside and when I put rust remover in it, the tank turned into a colander (12 holes and counting). Finding a replacement tank has proven impossible up to now and the prospective replacements I've gotten - 1 go-cart plastic tank and a Yamahopper moped tank won't fit into the ridiculously cramped space under the hood. I've considered using a boat tank and mounting it on the fender, but since the carb is so cranky from getting cruddy gas, I'm afraid the bulb siphon will flood it immediately.
Are there any replacement tanks you folks found that will do the job and/or fit under the hood? Or someone who is willing to make a replacement?
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2 years 5 months ago #236970
by trainzkid88
if it only pin holes you can use a fuel tank sealer such as redcote. there is several to choose from.
or if you or a friend has a sheet metal bender it not difficult to bend up a new tank just remember it will need to be in 2 pieces no bender can do a one piece tank. and then weld or solder it together
also try a wanted add on the sale section of the forum never know who has what laying around.
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2 years 5 months ago #236973
by d4angelo
You might try a plastic coolant overflow tank from a modern car. There should be tons of different sizes or dimensions in the junkyard.
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2 years 5 months ago #236982
by d2gary
I have an extra u series tank in good shape. I can get pictures if you're interested
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2 years 5 months ago #236983
by Rome K/G
I would think a two-piece steel blank could be made for these tanks and then stamp them out and weld them together, or with all the CNC machines available to make a die, it could be easily done, look how aluminum billet rims are made.
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2 years 5 months ago - 2 years 5 months ago #236990
by WClay
Definitely! Please do. [In response to the extra tank pictures. I guess I replied to the wrong post.]
Last edit: 2 years 5 months ago by
WClay. Reason: replied to wrong post
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2 years 5 months ago #236993
by WClay
After rust removal, redcote was the next step but each rust removal pass created more holes and the inside was still totally chunky. I've got some welding experience but it is limited to lumber racks and theatrical light towers - all bar and plate stuff - nothing precision at all. I need some CNC-equipped friends.
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2 years 5 months ago #237002
by Kurt Bangert
DO a search on pony tanks, there is a member that has been fabricating tanks - I don't recall he handle off hand.
D4 D 78A 6678
D4 6U 1139
RD4 4G223W
D2 5U 1164
JD 350B
JD 420C
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2 years 5 months ago #237011
by d2gary
The tank still has a wet residue from old gas in the bottom
If it was mine I would clean it and use it, I'm not a big fan of coating
I can't seem to load pictures but I'll try again
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2 years 5 months ago #237014
by D4Jim
I fought rust and crud in my D4 pony tank for years and finally broke down and lined it with the red stuff about 10 years ago. Can't believe I didn't do it sooner. It still has a small inline filter in the line but it never picks up any dirt or rust.
ACMOC Member 27 years
D47U 1950 #10164
Cat 112 1949 #3U1457
Cat 40 Scraper #1W-5494
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D2 5U Pony Tank help
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