The Great e30 Trivia Game Thread. -- Retired

[MattM20]

I can't really think of anything.

Besides the obvious diameter answer, what is a difference between 45mm and 51mm strut housings?

different gland nuts?

[modifiede30]

different gland nuts

I thought this was about car parts and trivia?

[Bill 84 318i]

I can't really think of anything.

Besides the obvious diameter answer, what is a difference between 45mm and 51mm strut housings?

different gland nuts?

Close enough. 45mm housings have an external thread. Take it away Matty.

[MattM20]

out of these euro spec (non cat) e30 engines which one/ones cant use unleaded fuel?

M10 B16
M20 B20
M20 B23
M20 B25
M20 B27
S14 (320is)

[e30rapidic]

taking a wild guess....the M10 B16

[e9nine]

Carb'ed cars supposedly don't like unleaded fuel...I would therefore say the m10 b16 since it is carbed..

[MattM20]

theres more than one. four to be exact ;)

[modifiede30]

All but the M20 B25 and M20 B27.

[MattM20]

All but the M20 B25 and M20 B27.

correct. go for it modifiede30 8)

[modifiede30]

In 1988, the main bearings on all 3 series changed. What is the difference between the 2 types of main bearings and are they compatible?

[Liqued12]

Isnt there a diffrent notch in them or something? And there for they are not compatable.

Jason

[modifiede30]

Close answer but not quite as informative as needed.

[Stu]

In 1988, the main bearings on all 3 series changed. What is the difference between the 2 types of main bearings and are they compatible?

Starting in '88 the lower main bearing shell had no groove for oiling. The shells had two lock tabs instead of one. These are basicly the turbo diesel bearings, and are continued on the m-50,52,&54 engines. The also changed the head bolts that year to a torx head which should be used on all M20's at a rebuild.

Compatible on pre-88 M20's? Yes, if you grind the extra lock tab groove.

[modifiede30]

Go for it Stu.

[Stu]

What are the valve head diameters of an '88 325e?