Oil screen
- Thread starter eabergman
- Start date
piranha-bro2
Hero member
- Location
- Melbourne
Ha! I don't think it matters all that much - it filters out anything smaller than a mouse.
Sorry the first reply had to be smartarsed. Hopefully someone who actually knows the answer will be along shortly.
Sorry the first reply had to be smartarsed. Hopefully someone who actually knows the answer will be along shortly.
Laverda SF
Hero member
Somewhat fine and double wrap it - Enough to keep Teflon shrapnel out of the oil galleries and pump ;o)
Change your 15W40 Diesel oil often and flush the screen. Once or Twice a year depending on use.
Change your 15W40 Diesel oil often and flush the screen. Once or Twice a year depending on use.
piranha-bro2
Hero member
- Location
- Melbourne
Laverda SF said:
True, Ron. Gotta keep those flakes of work cam chain rollers out of the rocker spindles, where they can wreak oil-starvation havoc.
Actually, the advice that it only needs to be small enough to keep the mice out is probably about right. The engine may have run quite a while with no filter at all, as there was none in there when I inspected. The seller had never looked that far into it, so it's probably been that way since the last rebuild. The inlet hole to the oil feed pipe is probably the best answer for "no larger than this". But I just heard from the seller that he found a beat-up original filter from another engine that he's sending me so I can count the mesh size on that. I also got advice that 40x40 is about right from a very experienced motorcycle engine builder I know, and I have some 40x40 brass mesh on order. I'm still curious about what Luciano Zen thought the mesh size on the 750s ought to be. Next time I drop the plate to change the oil I will count the mesh.
Thanks for commentary, as always!
Eric
Thanks for commentary, as always!
Eric
piranha-bro2
Hero member
- Location
- Melbourne
Pretty right, Paul. I don't think I've ever found anything caught in the gauze in all the oil changes I've done - not so in the oil outlet holes in the rocker spindles that feed directly onto the cam lobes - have found worrying flakes trying their hardest to sabotage longevity!
Can you get magnets that attract plasticky, neopreny, teflony flakes? 8)
Can you get magnets that attract plasticky, neopreny, teflony flakes? 8)
Laverda SF
Hero member
Piranha: Plainly you don't rev your 750's Hi-Enough ;o)
YES! Always use a Magnetic Drain Plug.
YES! Always use a Magnetic Drain Plug.
Tippie
Hero member
- Location
- Dr?bak, Norway
Laverda SF
Hero member
Shit Berganzies don't have drain plug - You got to drill and tap then put a magnetic drain bolt in her ;o)
CLEMTOG
Hero member
kits are available to replace the sump plate with one that contains a boss for a sump plug my dear Ron, currently from UK enthusiast lemon jelly or LJ2, aka Shaun Dampier, but have been available for years prior to this from a number of sources.
The interesting thing here is that the 180 engines have a courser mesh sump strainer than the 120's and it is (more or less) only the 120's that can suffer blocked strainers from fluff due to changing the oil, and the new stuff being incompatible with the remnants of the old stuff, be careful out there lads.
CLEM
The interesting thing here is that the 180 engines have a courser mesh sump strainer than the 120's and it is (more or less) only the 120's that can suffer blocked strainers from fluff due to changing the oil, and the new stuff being incompatible with the remnants of the old stuff, be careful out there lads.
CLEM
Laverda SF
Hero member
Thank you "My Darling Clementine" 
)
)
CLEMTOG said:
Ha, ha.
I've come across several blocked older 180 strainers due to over-enthusiatic use of unsuitable sealing compounds. In one case, it cost the customer 3 sets of cams and cam bearings before he heeded advice and wised up...
It has to hurt before some people learn.
piet
Tippie
Hero member
- Location
- Dr?bak, Norway
Absolutely true, from the moment of the first startup.Paul Marx said: