Main Motorcycle: '74 T140V Chop
Join Date: Jul 2012
Location: Woodbridge, UK
|Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.|
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|except in my opinion I would not want the restriction of cold oil thru the filter at startup.|
I can't see how this method could possibly be better than cleaning oil on the return line though?
Surely, as somebody else said (can't find the post to quote for a second) if you put clean oil in the tank, there's no crap in the tank. If you put the filter after the tank but before the crank, you are cleaning clean oil. The crank/engine in general is then making the oil dirty and dumping it back in the tank. Now you have a dirty tank which NEEDS cleaning before it enters the engine. It's basically a solution for a problem that wouldn't exist if the filter was on the return (due to oil being as soon as it's dirty rather than let it sit in a tank).
Engineering wise it's cool. Looks nice, something different etc. Practically it's no different other than having the tank as a "dirty" part of the loop.
Well, that is fair enough! I don't think about classic Triumphs that much to be fair as I've never had one.
Mine is a mashup and I have a stainless tank. Nothing to worry about there, my tank is always perfect!
Yeah, the top tube being exposed to air probably means a filter off the bottom is a good idea. Even so, I'd still probably just whack a metal screen in then filter post engine.
Do you actually get rust in the top tube then? Surely you'd have an oil mist stopping that?
I am currently engaged in a full frame-off resto on a mate's 1979 T140D. Despite the bike's questionable history and the tremendous amount of sludge I found in the oil-bearing main tube (and a fully clogged screen that had ripped open) there is surprisingly little rust inside, and no scale to speak of. That said, the fact that over time small particules will enter into the engine without taking necessary steps to prevent this are prominent. I've been mulling the idea of mounting strong computer hard drive magnets in the main tube, and had initially thought that in order to avoid clearance issues, I might fit a filter boss INSIDE the main tube, enabling a spin-on filter to mount flush with the bottom of the frame. If I were a better metal fabricater, I'd do just that, but sadly I'm not, and will need to make use of bits and bobs commercially available. Either way, I've not gone to this much trouble not to mount something up, but I've got to decide the best route.
This is a fully enthralling thread.
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