Topic: Sumping on a 18 (Read 5224 times)

hrdtail78 · « **on:** January 30, 2019, 02:16:04 PM »

Pulled out about 40 oz of oil out the sump drain. Took everything apart because I just installed aftermarket pump and plate. As I do. I always spin engine with starter while PR are out. This pumps the lifters and shows me I am primed with pressure before I move on. Rear lifters we’re putting out more oil that I have ever seen in any engine. Further investigation. I found this. That’s a lot of unmetered oil entering the engine.

hrdtail78 · « **Reply #1 on:** January 30, 2019, 02:24:30 PM »

Here you can see a casting flaw.

hawgzilla · « **Reply #2 on:** January 30, 2019, 02:51:00 PM »

Great catch!!!

Robmay · « **Reply #3 on:** January 30, 2019, 04:07:47 PM »

Wow.

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mark · « **Reply #4 on:** January 30, 2019, 04:19:54 PM »

It's time to come out with the M9. The M8 is never going to be right.

bigchuck · « **Reply #5 on:** January 30, 2019, 06:40:30 PM »

Quote from: Mark on January 30, 2019, 04:19:54 PM

It's time to come out with the M9. The M8 is never going to be right.

Not exactly sure how a 2 cylinder 9 valve engine will work

rayson56 · « **Reply #6 on:** January 30, 2019, 06:45:57 PM »

Damn!!

chstrahl · « **Reply #7 on:** January 30, 2019, 07:34:56 PM »

Showing my ignorance here... what is the fix for the sumping issue?

mark · « **Reply #8 on:** January 30, 2019, 09:05:40 PM »

Quote from: bigchuck on January 30, 2019, 06:40:30 PM

Not exactly sure how a 2 cylinder 9 valve engine will work

Haha...hopefully better than the two cly., eight valve...

Bav · « **Reply #9 on:** January 31, 2019, 06:39:07 AM »

Quote from: bigchuck on January 30, 2019, 06:40:30 PM

Not exactly sure how a 2 cylinder 9 valve engine will work

You could have a M10

I used to have an R1 that had 5 valve heads

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OBB · « **Reply #10 on:** January 31, 2019, 07:52:55 AM »

Quote from: hrdtail78 on January 30, 2019, 02:24:30 PM

Here you can see a casting flaw.

Help us that are less knowledgeable about this stuff out please. Where's the casting flaw? What are we looking for and what should it look like? Thanks

grc · « **Reply #11 on:** January 31, 2019, 08:09:24 AM »

I'm guessing where I've added the red arrows.

Jerry

harleytuner · « **Reply #12 on:** January 31, 2019, 08:33:12 AM »

Quote from: grc on January 31, 2019, 08:09:24 AM

I'm guessing where I've added the red arrows.

Jerry

No, just to the right of your arrow, in the pocket there, there's a hole allowing the light to shine through.

hrdtail78 · « **Reply #13 on:** January 31, 2019, 08:34:50 AM »

Oiling on a m8. A feed gallery goes down the middle of the lifters and then T’s off to the lifters. Then it T’s off again to the piston jets. The flashlight is in the rear intake lifter hole. It is shining down the hole that is drilled to connect the main oil feed gallery to get oil to the lifter. You can see a little spec of light coming through a part of the case that is cast in. That hole is allowing oil to bypass lifters and pour into the cam compartment unmetered.

grc · « **Reply #14 on:** January 31, 2019, 08:36:03 AM »

Quote from: harleytuner on January 31, 2019, 08:33:12 AM

No, just to the right of your arrow, in the pocket there, there's a hole allowing the light to shine through.

Ah yes, now I see it. Thanks.

Jerry

Author Topic: Sumping on a 18 (Read 5224 times)

hrdtail78

Sumping on a 18

hrdtail78

Re: Sumping on a 18

hawgzilla

Re: Sumping on a 18

Robmay

Re: Sumping on a 18

mark

Re: Sumping on a 18

bigchuck

Re: Sumping on a 18

rayson56

Re: Sumping on a 18

chstrahl

Re: Sumping on a 18

mark

Re: Sumping on a 18

Bav

Re: Sumping on a 18

OBB

Re: Sumping on a 18

grc

Re: Sumping on a 18

harleytuner

Re: Sumping on a 18

hrdtail78

Sumping on a 18

grc

Re: Sumping on a 18