Oiling issue

[Megadan]

Originally Posted by red2003

Yes that is the oil pump gear, and yes it should turn the oil pump shaft. It is NOT an idler gear. If the gear turns, and the pump shaft doesn't, you have found your problem. Unfortunately, that means the rest of the engine hasn't been getting oil either, and you probably have more problems than just noisy valves.

Meh, it will probably be fine. Most of the engine is also splash oiled so it will likely be ok. The valvetrain would be the thing that suffered the most. Worst case, it needs a top end, and those are fairly cheap.

[Megadan]

Originally Posted by Bandera rider

Yeah that shaft is locked up and does not budge. Thanks for all the input, I really appreciate it.

On the plus side of things, you found the problem and it's a cheap fix.

[red2003]

Originally Posted by Megadan

Meh, it will probably be fine. Most of the engine is also splash oiled so it will likely be ok. The valvetrain would be the thing that suffered the most. Worst case, it needs a top end, and those are fairly cheap.

Except, the cam bearings / lobes and transmission shafts rely on pressurized oil for lubrication. Those would be the areas that are likely worn pretty bad (if not ruined). These have nothing to do with a "top end", so that is far from the worst case.

[Bandera rider]

So can the oil pump be rebuilt or replaced? If so where would I be able to get parts?

[Megadan]

Originally Posted by red2003

Except, the cam bearings / lobes and transmission shafts rely on pressurized oil for lubrication. Those would be the areas that are likely worn pretty bad (if not ruined). These have nothing to do with a "top end", so that is far from the worst case.

Most of those are also splash oiled for redundancy, like I already stated, so they are still likely ok. The entire bottom end is designed around that concept, intentionally, so it can survive low/no oil conditions without any short term severe damage. Translation: I wouldn't sweat it. That engine assembly will likely give years of service without ever suffering a failure from its brief time with a bad oil pump.

Both the main and counter shaft are partially submerged when the oil isn't circulating. The bottom of the crank counters are also submerged and sling oil. All of the bearings would see enough oil splash to stay lubricated. The cam, being right above and next to the crank also gets splash oiled from below..

Is ther some minor wear damage? It's possible. Enough to have trashed the bottom end? I would bet my 401k it's fine.

As a side. Why does everybody here need to make rude remarks to everything in an argument? It's not necessary.

[Megadan]

Originally Posted by Bandera rider

So can the oil pump be rebuilt or replaced? If so where would I be able to get parts?

You can easily replace it. They can be often found on ebay. Also found on aliexpress for 6 to 10 bucks plus shipping. It would be a good idea to pull the oil pump to help match it to your application. Gear tooth count and housing shape In particular. Post a couple of pictures of it and I can try to help you match it up.

[red2003]

Originally Posted by Megadan

Most of those are also splash oiled for redundancy, like I already stated, so they are still likely ok. The entire bottom end is designed around that concept, intentionally, so it can survive low/no oil conditions without any short term severe damage. Translation: I wouldn't sweat it. That engine assembly will likely give years of service without ever suffering a failure from its brief time with a bad oil pump.

Both the main and counter shaft are partially submerged when the oil isn't circulating. The bottom of the crank counters are also submerged and sling oil. All of the bearings would see enough oil splash to stay lubricated. The cam, being right above and next to the crank also gets splash oiled from below..

Is ther some minor wear damage? It's possible. Enough to have trashed the bottom end? I would bet my 401k it's fine.

As a side. Why does everybody here need to make rude remarks to everything in an argument? It's not necessary.

I stand corrected on the cam. I totally forgot we're talking about a CG. I agree, the cam is prob fine. Because someone has a differing opinion to yours does not make it rude. And, as an aside, replying to someone's opinion with a "meh...." is very dismissive and rude.

[Megadan]

Originally Posted by red2003

I stand corrected on the cam. I totally forgot we're talking about a CG. I agree, the cam is prob fine. Because someone has a differing opinion to yours does not make it rude. And, as an aside, replying to someone's opinion with a "meh...." is very dismissive and rude.

I have zero issues with people disagreeing with me. I have every issue with the "tone" of how they disagree, and I took yours as rude and dismissive.

As far as the "meh" goes, if you read into the context and the words you will notice that the "meh" was definitely dismissive, but it was dismissive to what you said, not you. Funny enough, since you just agreed with me it seems the dismissed information was worth dismissing, thus totally appropriate. Sorry I bruised your ego and you felt the need to lash out.

Also, yes, I am often taken as being "rude" by many people because my matter of fact nature and low tolerance for misinformation and narcissism. You can call me any and every name under the sun if it makes you feel better. I will probably agree with you.