Massive Oil Leak

[Oka]

Hello folks. I went and clicked on the thumbs up to say "Thanks", then the thumb points down. Is that right?

[Oka]

Finally finished and put everything back. Been busy with other things. Here are the work I did.
- Front crank seals, intake and exhaust side
- Water pump
- Timing belt, serpentine belt
- Timing belt tensioner
- PVC breather and oil trap
- Pulled down the oil pan and cleaned
- All o-rings in the area I worked

However, I connected the battery, started the car, and it sounded bad, like grinding teeth; I turned the car off right away.
What on earth could that have been?

Cheers

If you hear metal to metal type grinding noise when you started the car you should also hear something when turning the engine over manually. Take the spark plugs out to make it easier to turn over the engine manually from the crank pulley nut and with helper listen carefully for the sound, you should at least be able to pinpoint where the sound is coming from.

Thanks will do!

[Oka]

I would go ahead and pull that engine mount back off, and retrace your steps back toward to the far exhaust cam seal, then play with the reluctor wheel. Just for fun from the maintenance you listed, I don't see what else could make the described noise.

Retracing is a good approach, could very well be the motor mount itself.
WHen I lost a coil the engine made a knocking noise under load ( on 4 cyls) , turned out to be the motor mount.
The noise went away when the coil was replaced.

Thanks will do!

[Oka]

I would go ahead and pull that engine mount back off, and retrace your steps back toward to the far exhaust cam seal, then play with the reluctor wheel. Just for fun from the maintenance you listed, I don't see what else could make the described noise.

Thanks will do!

[Oka]

I would go ahead and pull that engine mount back off, and retrace your steps back toward to the far exhaust cam seal, then play with the reluctor wheel. Just for fun from the maintenance you listed, I don't see what else could make the described noise.

Retracing is a good approach, could very well be the motor mount itself.
WHen I lost a coil the engine made a knocking noise under load ( on 4 cyls) , turned out to be the motor mount.
The noise went away when the coil was replaced.

Thanks will do!

While retracing my path, which I will get too, tomorrow, would anyone know where this bolt came from? I found it laying on my work table when I was done putting things back.

Bolt1.jpg (19.44 KiB) Viewed 506 times

Bolt2.jpg (21.54 KiB) Viewed 506 times

[TisMe]

Someone correct me if I'm wrong, but I believe that's 1 of 4 throttle body bolts. However mine were metric, not allen or torque.

[Oka]

Someone correct me if I'm wrong, but I believe that's 1 of 4 throttle body bolts. However mine were metric, not allen or torque.

This I know for sure. Throttle body is regular bolt head; it's an M6x80 bolt.

[Oka]

Someone correct me if I'm wrong, but I believe that's 1 of 4 throttle body bolts. However mine were metric, not allen or torque.

Just curious and nosey. Is the "E30" on the plate, a BMW engine designation?

[TisMe]

Someone correct me if I'm wrong, but I believe that's 1 of 4 throttle body bolts. However mine were metric, not allen or torque.

This I know for sure. Throttle body is regular bolt head; it's an M6x80 bolt.

Interesting, the only other place I've seen a bolt like that is on my wheel bearings. But that was also a regular bolt head. Sorry I can't be of more help.

Just curious and nosey. Is the "E30" on the plate, a BMW engine designation?

Questions offer knowledge, no worries

E30 is the chassis designation, running from '83-91. The prior generation were E21's. The following generation was the E36, then E46... They never made badges of the chassis style, which is why I was stoked to get the plate. You'll see badges like 325i, meaning 3-series > 2.5L > Inline (or maybe Injection). Or 535is: 5-series > 3.5L > Inline Sport.

The earliest model E30s had M10 engines, only a few years into their cycle they changed them to M20s. So assuming that E30 was an engine design makes a lot of sense!

[Oka]

Someone correct me if I'm wrong, but I believe that's 1 of 4 throttle body bolts. However mine were metric, not allen or torque.

This I know for sure. Throttle body is regular bolt head; it's an M6x80 bolt.

Interesting, the only other place I've seen a bolt like that is on my wheel bearings. But that was also a regular bolt head. Sorry I can't be of more help.

Just curious and nosey. Is the "E30" on the plate, a BMW engine designation?

Questions offer knowledge, no worries

E30 is the chassis designation, running from '83-91. The prior generation were E21's. The following generation was the E36, then E46... They never made badges of the chassis style, which is why I was stoked to get the plate. You'll see badges like 325i, meaning 3-series > 2.5L > Inline (or maybe Injection). Or 535is: 5-series > 3.5L > Inline Sport.

The earliest model E30s had M10 engines, only a few years into their cycle they changed them to M20s. So assuming that E30 was an engine design makes a lot of sense!

I asked about your place cause I have an E23 engine (1985 735i). Have not touched it in years. Was wondering if your plate meant something else. By the way, someone here in Anchorage has the BMW Isetta 600 (one-door).

About the bolt. I found it on my work table when I was finishing putting things back. No one can identify it. Stunning indeed.