Can plastic fuel tank be used on a steel tank model? - Snowblower Forum : Snow Blower Forums
 
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post #1 of 10 Old 01-29-2016, 04:58 PM Thread Starter
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Can plastic fuel tank be used on a steel tank model?

624 fuel tank question.

Can plastic fuel tank be used on a steel fuel tank model?
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post #2 of 10 Old 01-29-2016, 05:51 PM
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What brand of engine? The Tecumseh Snow King plastic tanks are pretty adaptable to a lot of different engines.
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post #3 of 10 Old 01-29-2016, 06:38 PM
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Welcome to the forum. You can use a plastic tank as long as it can be secured firmly and safely in place. Has to be high enough mount to gravity feed to the carb. MH

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post #4 of 10 Old 01-29-2016, 07:15 PM Thread Starter
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I am sorry I should be more clear. Can a Yamaha 624 plastic fuel tank be used to replace a steel fuel tank on a 624?
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post #5 of 10 Old 01-29-2016, 07:17 PM
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Yes it can if the conditions in the above post are met.

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post #6 of 10 Old 01-29-2016, 07:59 PM Thread Starter
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Is it a straight swap or modification is needed?
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post #7 of 10 Old 01-29-2016, 08:39 PM
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Welcome bcjm
Sometimes we fail to note the category (Yamaha) a post is made in.
I think the tanks on these went from steel, to plastic, then back to steel. I seem to remember reading that there were issues with the plastic cracking/leaking. On the fan site.
What is the issue with your metal tank?
I had an early metal tank unit (3 speed) that I successfully de-rusted and sealed with POR-15.
edit: link to search of plastic tank issues;
http://yamaha-snowblower-fan-club.plastic

Last edited by dbert; 01-29-2016 at 08:41 PM.
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post #8 of 10 Old 01-29-2016, 08:54 PM
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When I first got mine I wanted to make sure I could get it to run before I invested a bunch of time on the tank. I rebuilt the carb first. Here is a photo with a temporary mower tank to make sure it was ok to proceed. If anyone has a plastic tank, perhaps they will be able to tell you if this tank mount (the steel piece, not the bungee) is the same.

Last edited by dbert; 01-29-2016 at 08:56 PM.
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post #9 of 10 Old 01-29-2016, 08:56 PM
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I have a Yamaha YS624T with metal tank (3 speed transmission), but unfortunately the engine is partially apart so I could not try a plastic tank on it because I have a few Yamahas with plastic tank. I would think that it would be compatible but it may need a few brackets. I will post some pics later or tomorrow since I have the plastic tank out of one of my YS624.
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post #10 of 10 Old 01-30-2016, 09:00 AM
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Going by dbert picture (unit with original metal tank), you'll definitely need a few parts to make it work.
There are 4 places where the mounting pins of the plastic tank fit. one at the left of the spark plug, one at the right of it on a independent bracket, and 2 on a bracket that is bolted to the fan shroud. See pictures (you may be able to identify the rubber grommets where the pins fit.
Here are the pics I have for now, possibly later or tomorrow I will take a few pics with the fan shroud and the right side bracket installed.
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