Non-BMW Stuff on a BMW Forum

[straight6pwr]

gilber33 said:

All clearances are on the bottom end

allow myself to introduce...myself

[jc43089]

gilber33 said:

Pulled the crank back out tonight, cleaned off the bearings, put it back in with plastigauge.

.038 across the all 7 caps. Very healthy. At least I know now. Also got three pistons ready to go in. 

I had a panic attack for you and then realized you must mean .038 mm, which is about .0015 inch which I would say is perfect if I remember right.  I think spec is .0008 to .0018 but it has been a while.  How I can remember correct bearing clearances but forget half of the stuff I need when I go to the store I don't understand.

[gilber33]

jc43089 said:

I had a panic attack for you and then realized you must mean .038 mm, which is about .0015 inch which I would say is perfect if I remember right.  I think spec is .0008 to .0018 but it has been a while.  How I can remember correct bearing clearances but forget half of the stuff I need when I go to the store I don't understand.

Lol. Yeah. .038mm. 

I remember very random car details and then I’m like what’s my kids’ names again?

[gilber33]

Slowly but surely. Building our 2yo a playhouse for her 3rd birthday and gotta start on a garden shed so this has taken a back seat unfortunately. 

[KaiserRolls]

Playhouse build thread time

[gilber33]

KaiserRolls said:

Playhouse build thread time

Lol. Nothing super exciting. But, she’ll be thrilled when it’s done. We’re telling her it’s a tool shed for the lawnmower and she can’t play in it. It’s For her birthday next month. 

[gilber33]

I wanna make sure this is right or wrong. I’m replacing the front crank seal and it looks like the outer lip of the seal doesn’t sit flush against the crank. Is this right? It doesn’t feel like it should be. It’s an elring seal. 

[B C]

Thats fine, and on older engines it is preferable for the lip seals to ride deeper or shallower than normal to avoid riding in the minute groove that is formed on the shaft surface

[gilber33]

B C said:

Thats fine, and on older engines it is preferable for the lip seals to ride deeper or shallower than normal to avoid riding in the minute groove that is formed on the shaft surface

That outer lip doesn’t even touch the crank. The inner seal do for sure, just not the outer one. That’s okay?

[B C]

The actual sealing lip is further back like so.

Trust your gut, if you feel funny about it, redo it with a new seal and also check to make sure the aluminum seal housing is sitting flush on the block. Kind of a dumb suggestion but its the only thing im coming up with off the top of my head that could physically affect the seal position

[gilber33]

That picture helps. It’s weird to me that this one would have that gap around the outer lip but the others wouldn’t. That’s why it’s throwing me off. 

Oil pump gear

crank

[gilber33]

I took it out.

[straight6pwr]

gilber33 said:

That picture helps. It’s weird to me that this one would have that gap around the outer lip but the others wouldn’t. That’s why it’s throwing me off. 

theres like 100 types of shaft seals, this should not be weird to you.

[gilber33]

straight6pwr said:

theres like 100 types of shaft seals, this should not be weird to you.

This is the first time I’ve seen one that was “open” on the face like that. It’s the only seal on the m20 like that and I’ve never seen one on all of the Volvo’s I’ve owned.

[Jdesign]

It's pretty common. A lot of hondas and aftermarket seals are like that.

[gilber33]

Oh look. More pictures of an m20 on an engine stand.

[gilber33]

Tonight I got the old engine out and transmission off and moved some more stuff over to the new engine. 

Also so finished the roof on the playhouse. Need to put in one more window and then finishing trimming it out. Then the next project is a garden shed off the back of the garage and the siding that is coming off of the garage will be going on here. 

[B C]

What was the benefit of the new engine? lower miles? 

and stop trying to beat my record for M20 extractions!!!!

[gilber33]

B C said:

What was the benefit of the new engine? lower miles? 

and stop trying to beat my record for M20 extractions!!!!

Lol. This is the 3rd time. 

I’ve never done a full tear down and rebuild of an engine. Was getting a lot of drivetrain noise and needed to pull the engine to check the clutch. Figured it was a good time to do and drop it in. Fresh hone, new rings, new bearings, and a refreshed head. 

We’re having our 3rd child in November and I decided while I have the time I’ll get this one in and get the car as reliable as it can be. We’re also doing a home addition next year, so I will very limited access to the garage.

Also, thank you to whoever updated the thread title. Lol

[KaiserRolls]

Still have plans to make the core support removable?