Topic: Oil Filter Leak?

[fendersrule]

Leaks piss me off, big time. I won't allow leaks, never, ever.

What's annoying is that when I replaced my oil filter, I put in the included NEW oil filter o-ring.

Torqued to factory specs.

Now I go out in the garage and I have a couple drops of oil right underneath the oil filter.

Times like this makes me wish I just re-used the old o-ring.  UGH.

So to add to this, I did the right thing by replacing the o-ring and got punished for it.

[flybox1]

Happens to the best of us 
The worst part is that about a quarter turn might have prevented it 

[fendersrule]

Yeah, and a quarter turn after the fact didn't help. 

Don't want to go more with the aluminum casings.

[dave500]

I think ive used the same o ring for three years?

[dhall57]

Use the new O-ring that comes with the new oil filter every time I change oil. Never had any leaks. Knock on wood

[Bodi]

overtightening it won't help. Once the bolt is much more than snug the housing is tight to the engine case, and the O-ring is as compressed as it will ever be... you're just stressing the housing - Honda put that tiny hex head on the bolt as a hint not to overtorque it.
I have noticed some non-Honda oil filter seals are smaller than what I expected: I binned them and re-used what was in place, so I don't know if they would have sealed. I usually use OEM filters but I have tried Amzoil (pretty good filters) and assorted aftermarket ones (usually not-so-good). I don't recall just which had undersize (IMO) O-rings and, of course, some come without them.

[70CB750]

Make sure the sealing surface is clean - the groove too.

[MCRider]

overtightening it won't help. Once the bolt is much more than snug the housing is tight to the engine case, and the O-ring is as compressed as it will ever be... you're just stressing the housing - Honda put that tiny hex head on the bolt as a hint not to overtorque it.
I have noticed some non-Honda oil filter seals are smaller than what I expected: I binned them and re-used what was in place, so I don't know if they would have sealed. I usually use OEM filters but I have tried Amzoil (pretty good filters) and assorted aftermarket ones (usually not-so-good). I don't recall just which had undersize (IMO) O-rings and, of course, some come without them.

I agree. I just put a new filter on mine. The ORing for the bolt was a no-go, diameter too small, cross section too fat, I used the old one over. I think the same for the housing ORing. Something about it just didn't seem to fit right and I used the old one. Can't remember if it was an OEM or after market. I'll check the packaging this weekend. I ordered several at the same time.

[nccb]

I have always used the Hi-flo filters that come with both o-rings.  They all seemed to fit correctly and haven't ever had to drip.

[PeWe]

I use Hi-flo filter without leak (yet). The big o-ring is thinner than the old filters I used during the 80's. Not much rubber visible above the grove in the filter hosing. I'll try Honda OEM next time, at least thicker o-ring.

[fendersrule]

I'm thinking the leak was due to the o-ring on the oil filter bolt.

I'm using a NAPA filter and both of the included o-rings.

I did replace the large o-ring last night. If it continues to leak, I'm going straight to the o-ring on the bolt.

[goldarrow]

i've been using KN oil filters and come with orings, never had issue

[ofreen]

I believe the NAPA filters are still made by Wix. I've been using Wix lately and i noticed last time that both o-rings that came with the filter were thinner than they used to be. I got no leaks, but I saw there wasn't much squish on the o-rings during installation.

[flybox1]

I believe the NAPA filters are still made by Wix. I've been using Wix lately and i noticed last time that both o-rings that came with the filter were thinner than they used to be. I got no leaks, but I saw there wasn't much squish on the o-rings during installation.

The Hi-Flo filters I bought to use for my break-in were similar.  Re-used my old K&N o-ring instead. 
I should measure CS differences....

[CB750F2]

I see that some members are using Hi-Flo oil filters. I have used them in the past - Part No. HF401 - and found that the "O" rings supplied are smaller than OEM. Also, they fit very loosely over the centre bolt allowing oil to bypass the oil filter. I suggest that you read post 41277 for more information. This came to light a few years back and the manufacturer may have rectified the problem but you should check. Pat

[nccb]

I see that some members are using Hi-Flo oil filters. I have used them in the past - Part No. HF401 - and found that the "O" rings supplied are smaller than OEM. Also, they fit very loosely over the centre bolt allowing oil to bypass the oil filter. I suggest that you read post 41277 for more information. This came to light a few years back and the manufacturer may have rectified the problem but you should check. Pat

Hmm, I haven't read about that issue.  Maybe they fixed that issue?  I will say that every hi-flo filter I have had actually fit pretty tightly around the center bolt.  I used the K&N a couple of times and actually couldn't tell a difference between the filters in terms of perceived filtration and appearance so I decided not to waste 2 extra bucks on them.  But I guess this is really off topic from fenders original issue

[bjbuchanan]

I tend to keep the old o-ring on there if it didn't leak at all. My thinking is that the same material o-ring on that oil filter bolt is what we have internally and expect it to last through countless oil changes and never come out for replacement.

That said, I have had better results using my random o-rings rather than the ones that get sent with the filters. The filter ones are usually pretty thin. One exception I have seen is the viton you receive with mobil 1 filters, they are flat out too big most of the time. Amazon does have great deals on the mobil filters as a heads up

[ekpent]

No leaks with the Frams from Advance Auto. OH Oh hope this doesn't turn into an oil filter debate   

[PeWe]

Correct oil filter without leak is good information and worthy a debate. This is a technical forum where stuff like this is and should be discussed and debated, right?

There are several threads here were the hot debate brings plenty of knowledge up to the surface that have given me really good information
P.S

I'll open a new popcorn thread when I have found an oil that does NOT cause stucked clutch when cold and not finding neutral when warm despite addional zddp.
D.S.

[MCRider]

Correct oil filter without leak is good information and worthy a debate. This is a technical forum where stuff like this is and should be discussed and debated, right?

There are several threads here were the hot debate brings plenty of knowledge up to the surface that have given me really good information
P.S

I'll open a new popcorn thread when I have found an oil that does NOT cause stucked clutch when cold and not finding neutral when warm despite addional zddp.
D.S.

As to clutch plates sticking. I'm using 20w-40 Yamalube as breakin oil on my new engine with a extra plate APE clutch. When I first started it, the clutch was real grabby, felt like a brake pedal when the ABS kicks in. But quickly after that, it smoothed into the smoothest clutch, engagement, and 1-n-2 shifter. I attribute that to Mark HondaMan's trick of drilling the clutch hub with more holes in special ways. And a fresh transmission bearing ORing to keep the pressure up to the clutch hub.

[Lostboy Steve]

I always had some residue. No leak, but just enough to dirty your fingers on. I changed to a spin on filter and it still gets a bit of residue around the adapter plate. Never the filter tho.

[ekpent]

Correct oil filter without leak is good information and worthy a debate. This is a technical forum where stuff like this is and should be discussed and debated, right?

There are several threads here were the hot debate brings plenty of knowledge up to the surface that have given me really good information
P.S

I'll open a new popcorn thread when I have found an oil that does NOT cause stucked clutch when cold and not finding neutral when warm despite addional zddp.
D.S.

Usually Fram is a dirty word for some people in Google world