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Old 31-Aug-2020, 12:29
Myk Myk is offline
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Oil deflector plate, how many?

Is it normal to have 2 of the deflector plates on the oil filter thread? Mine has 2 and I canít see why, maybe this is resulting in the oil filter not being tight enough against the engine case. Yes I am still loosing oil from around the filter
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Old 31-Aug-2020, 13:07
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Parts pdf shows a single plate under the cartridge thread boss that is called 'cooler bypass spring' and come in two listed diameters.

For running without carb heaters - or a complete oil cooler???

799.1.039.1A

[edit]Image link WONT work - if not delete the full stops and Google is your best friend.


Cheers - Frank
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Old 31-Aug-2020, 13:22
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Seen elsewhere:

"There was also a bad batch of OEM Ducati filters that had the threaded part not recessed deep enough, causing them to leak even when correctly tightened. So if you recently had a new Ducati filter installed I'd check that area for leakage while running"


Cheers - Frank
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Old 31-Aug-2020, 13:42
Myk Myk is offline
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Thanks for that. Mine has heaters and oil cooler. Just been out to the bike now it’s cooled down. The thread is knackered in the crankcase. Looks like I will need a helicoil fitting. Anyone know the original thread size? Looks like M22 or M20? Also anyone done this with the engine in the frame?
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