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Bonneville Triumph Oil filter glitch

N

Norton Margie

Active member
Joined
Sep 18, 2020
Location
Alameda
Moto(s)
new Triumph
Old Norton
Aermacchi
I have two T100 Bonneville Triumphs and change the oil and oil filter on both every year. A month ago, I changed the oil and filter on one bike, spun on a new oil filter (Triumph factory filter) added oil and started the bike to check oil level, Oil poured out of the area around the filter. After a massive cleanup effort, I removed the filter and found that the gasket from the old filter had stuck to the engine, making it impossible to seal the new filter. Once I removed the stuck gasket, (it came right out with a little screwdriver work) and replaced the oil filter the leak stopped.

Today I changed the oil on the other T100. When I removed the oil filter, the rubber gasket again stuck to the engine. This time I was watching for the problem and removed the old gasket before installing the new filter.

If you have a Triumph Bonneville, this is something to watch for.
 
Every bike and car should be checked. It can happen on any vehicle.

Do you oil or lube the gasket before installing the new filter?
 
that might be the case if it happened on ONE bike. When it happened on two bikes, I suspect a design flaw. Note that the gasket was easily removable from the engine
 
Every time you remove an oilfilter/car truck motorcycle, etc.check the mounting surface; common, the old gasket likelystuck there / clean the surface before installing the new filter.
 
What type of design flaw are you suspecting; a Triumph engine / oil filter gasket mating surface area flaw or an OEM oil filter gasket flaw?
Triumph OEM oil filters are made by WIX. WIX has made a lot of filters and sold in multiple brand names. Triumph has produced a lot of motorcycles which is kina of doubtful that they can't machine a flat gasket surface.
 
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The cure is simple and has nothing to do with flaws. Simply check to see if the old filter left its gasket on the engine. Then make sure the gasket surface is free of any debris. Then put a smear of engine oil on that surface and on the new filters gasket.
 
I have been changing oil filters for years, and this has never happened before. The design flaw (or manufacturing flaw) is in the oil filter.
 
This is a common issue. It occasionally happens to spin on oil filters of all brands and on all models of motorcycles and cars. First time I heard of it was over 30 years ago.
 
K & N had issues, way back, haven't heard about anything new, or had any issues with my bike.
I may have had the stacked gasket, but I caught it, and didn't remember it as an issue.
I know I've had a stacked gasket before, on different things.
 
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