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Oil filter bolt / relief valve

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Matt_Harrington:
Ken kindly sent new innards for my bolt that is obviously a pattern part.

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As you will see the old 'cap' is deformed and is about 0.4mm smaller in diameter than an original (Original parts on the right).
The spring is also a little weaker (longer but thinner gauge)
When fitting the replacement cap to the old bolt, it didn't drop in all the way and I discovered there were burrs on the inside of the bore.
So, I can only assume the cap wasn't working well and was  either jamming in the bore or being worn down by the burrs. This may explain how some of the ring debris got puumped around the oilways.
A reamer has cleaned up the inside and the cap is a decent fit with no snagging. So, it is defintely worth checking the operation of these replacement parts.....

Oddjob:
Just shows you what crap people like DS sell, not even a flush cut on the bottom of the cup like the original. I wonder if the poundage of the replacement spring is roughly the same? It's thinner but longer so the compression it's under may make the poundage it opens at roughly the same? Not exactly something you want to take a chance with.

I'd also suggest checking the relief valve in the oil pump, if it has one, I had 3 pumps apart and 2 were stuck solid. When cleaned up etc the plunger would fall inside under it's own weight, if it sticks even slightly, clean it until it doesn't

Matt_Harrington:
Thanks, Ken - I have had the oil pump apart and was slightly surprised that there was no damage to it so just a clean and new seals (all rotors within spec).

A manual test of the spring leads me to think the original is slightly stronger - not exactly a scientific test!!

TrickyMicky:

--- Quote from: Oddjob on August 24, 2023, 03:27:29 PM ---Just shows you what crap people like DS sell, not even a flush cut on the bottom of the cup like the original. I wonder if the poundage of the replacement spring is roughly the same? It's thinner but longer so the compression it's under may make the poundage it opens at roughly the same? Not exactly something you want to take a chance with.

I'd also suggest checking the relief valve in the oil pump, if it has one, I had 3 pumps apart and 2 were stuck solid. When cleaned up etc the plunger would fall inside under it's own weight, if it sticks even slightly, clean it until it doesn't

--- End quote ---
  I notice that over time there seems to be a lot of hate directed towards DSS Spares.  The only connection I have with this company is that I have used them for over 21 years. In that time, I have had to return two faulty items. One was a GENUINE Honda set of front exhaust pipes, which when fitted, two of them actually touched each other. I'm fortunate to live close enough to be able to visit the store. I was taken into the unbelievably massive warehouse and given a free hand in choosing another set. The other item was a fully loaded pattern  ignition backplate, which I purchased to try and save money. Exchanged for genuine item plus cash adjustment.  For my sins, I owned for a short time this year an XBR500, and I purchased a set of rear brake shoes from an online supplier of repute.  When they arrived I saw that they were Ferodo, which gave me confidence even if they were made in Italy!  They were rubbish, so I bought a set of OE shoes from DSS and they just fell into place.  With something as important as parts for engine lubrication, is it not a touch risky buying unknown pattern parts, when the genuine item is readily available from DSS?  Stay safe everyone.

McCabe-Thiele (Ted):
I've no issue with DS parts in general although some can be on the pricey side.
I have found them helpful on the phone.

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