Replacement oil filter bolt

[dbbrian]

I picked up a new oil filter bolt from Parts n More because the head on the old one was rusty, and starting to get a bit rough around the edges.

Once I got the old one out I compared. A bit different.

The threaded section is shorter but I tested and seems to be enought to snug the cover up tight.

Slight difference in the holes, new has all large size, old has large and small, but I'm thinking bigger means more flow = OK

But I noticed inside the bolts there is a spring and ball bearing. The old one will rattle when shaken. The new one not.

What does that thingy inside do, and should it be loose?

Working on a picture upload


Brian

[dbbrian]

pics

I give up on photobucket....here is my google drive

https://drive.google.com/drive/folde...XY2emU0ek1XUWs

Can you see them?

[bikerphil]

It should not rattle, it is a bypass valve in case the filter is plugged, the oil will then be redirected and unfiltered to the engine.

Could not access your photo.

[dbbrian]

sharable link

this might work

https://drive.google.com/open?id=0Bw...XY2emU0ek1XUWs

Good to know. I guess that means my old one wasn't sending the oil throiught the filter?

I have noticed it gets dirty real quick. Perhaps that is why.

[bikerphil]

Those pics work, as long as the bolt threads in far enough you should be fine. Yes, you may have been running unfiltered oil.

[dbbrian]

Jeepers the rusty head was the least of my worries.

Thznks for the help.

All back together with fresh oil, will be interesting to see the difference.

Test drive time!

[MPittma100]

Filter bypass

Opens also when oil is cold if you rev the engine too high. Is open when/if filter gets too dirty.

[dbbrian]

Geat support once again

You guys are awesome!

It would seem this bolt is something that should be checked and / replaced regularily but I have not seen anything about it in the service manuals about how it is supposed to function.

Once again this website proves to be the best place to hang out.

Thanks guys.

Test ride went perfectly.

[3Phase]

Regularly? Yeah, like every forty years or so you should replace the bolt.

Check it whenever you change the oil filter to make sure the ball will move with the spring and that it's not loose and rattling around.

I seem to remember a couple of posts about new filter bolts being defective, the ball was jammed and couldn't move or it was stuck open but I haven't seen anything recent.

[MPittma100]

Fyi

While you are in there, be sure that the thin flat washer and spring are under the filter. The washer sometimes preforms a magical disappearing act.

You guys are awesome!

It would seem this bolt is something that should be checked and / replaced regularily but I have not seen anything about it in the service manuals about how it is supposed to function.

Once again this website proves to be the best place to hang out.

Thanks guys.

Test ride went perfectly.

[dbbrian]

While you are in there, be sure that the thin flat washer and spring are under the filter. The washer sometimes preforms a magical disappearing act.

The spring? check....the washer?....dang, ran out to the garbage to see if stuck to the old filter, no. Might be in the pan of old oil so I will have to decant it carefully. However I was pretty carefull to hold it all together when taken apart.

Thanks for the tip.

By the way, the oil went black within 40 km. Is this normal?

[bikerphil]

If it is black in the sight window already I would say it may need a flush.

[MPittma100]

Spring/Washer

More often than not the washer does come up missing. I've seen both washer and spring missing. Have even found an additional lower metal filter ring in along with a complete filter? Springs and washers are available and both are required.

The spring? check....the washer?....dang, ran out to the garbage to see if stuck to the old filter, no. Might be in the pan of old oil so I will have to decant it carefully. However I was pretty carefull to hold it all together when taken apart.

Thanks for the tip.

By the way, the oil went black within 40 km. Is this normal?

[MaximPhil]

Hi Brian,
I have a spare washer..somewhere. I'll look for it.
Phil

[TopCatGr58]

Hey Brian,

Just to be on the safe side, want to make sure you know the correct assembly order, the bolt into the bottom of the cup, the spring goes in the bottom of the cup, then the washer on top, and then the filter on top of that. The washer keeps the spring from eating its way thru the filter, as well as keeping the filter UP next to the case and around the holes in the filter bolt closest to the threaded end.

IF the filter slides down because of the spring cutting/digging into the filter, then AGAIN, you will have UNFILTERED coil getting into the engine because it'll be bypassing the filter as it goes thru the exposed holes in the bolt near the threads.

Yep, you may want to put a 1/2 bottle of Marvel Mystery OIL into the engine and run it for a little while and then drain to help flush out a lot of the grime/gum/residue that may be ALL OVER the engine due to running unfiltered oil with that old broken filter bolt!?

T.C.