Why No Mention of Sump Filter in Owner's Manual?

Wonder how tall the Heiden set-up is? Maybe I'll just knock that extra 2mm of and start there.
Ballpark... I'd say you're roughly the same height. If you could shave 2MM... couldn't hurt.

PB020617 (Small).jpg
 
I noticed you countersunk the 3 mounting bolts. On the Heiden unit, they just sit on top. If you made yours that way, it would be a simple matter to lay a piece of plate over the top, held on by the 3 mounting bolts. It wouldn't block much, if any, flow to and into the filter but it would stop it from pulling straight down on the oil above it and possibly creating that "hole" in it.
 
The countersunk screws on the front block were a matter of using what was on hand at the time. The one on the rear block is actually a through hole with a short button head under the filter. There is a spring in the rear to hold the filter seated into the intake end.
Shorten the blocks, lengthen the screws and plate the top may be the way to go.
 
Been pondering this all day at work. Shorter blocks, covered on top should theoretically move the low pressure areas down & to the sides, closer to the stock configuration. Ordered a half dozen more filters this morning...guess I best git whittlin'.
 
For bolts, if you're concerned about the Allen heads sticking up too far, you could use button head Allens or just plain hex head bolts like the original filters had.
 
Was planning on button heads. Don't think clearance either way would really be an issue, still should be 15mm or so from anything. Losing 2mm off the bottom & adding a plate on top should still only be about 6-7mm taller than stock, less the bolt heads.
 
I have the Heiden filters both in the sump and paper element type in the side, i don't suffer oil starvation at all, just keep your oil topped up, there is plenty enough room above the filter, you really do need to leave these uncovered for best results, we run roller bearing cranks and cams so we need high volume low pressure oil feeds for best results, just my tuppence worth.

https://www.heidentuning.com/xs650-...sump-oil-filter-kit-heiden-tuning-detail.html
 
The oil passage from the sump to the pump is about 13mm diameter. That makes a cross-sectional area of about 133 sq-mm.

You could determine the wire and mesh size of the intended filter, multiply by its surface area, to get its total passthru area. As long as it's larger than the passage area (maybe double that to account for partial clogging), it shouldn't be a problem...
 
I have the Heiden filters both in the sump and paper element type in the side, i don't suffer oil starvation at all, just keep your oil topped up, there is plenty enough room above the filter, you really do need to leave these uncovered for best results, we run roller bearing cranks and cams so we need high volume low pressure oil feeds for best results, just my tuppence worth.

https://www.heidentuning.com/xs650-...sump-oil-filter-kit-heiden-tuning-detail.html

I have the same arrangement as kevski. Big improvement over standard IMHO and no trouble so far. And don't anticipate any!

Good to hear from people who have firsthand knowledge, at least we know we're headed in the right direction.
 
To be honest the sump filter is just a strainer to sift out any larger particles, the side one is the main and more important which is why i opted for the Heiden modded one it uses a readily available Honda paper type filter, the kit is also stocked at Mikes XS and well worth the spend
 
That thump was me falling off the wagon. We got a positive displacement pump stationed between a Sump suction filter/strainer and a "pressure" filter in the side case on the other side of the pump. So why are the sump filters blowing out instead of in? The sump filter I took out of the bike when I started building was blown out. So I don't get it. The sump filter is there to protect the pump, Yes? Oil level above the sump filter? They did once lower the oil level in the engine to prevent slugging into the airboxes, I believe? I could be AFU.
 
The sump filters do actually blow "in" not "out". Maybe yours just looked like it blew "out" for some reason. Maybe oil being drawn in on the other side was pushing your torn area out as well.
 
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