Metric Mechanic sell them, as does Ireland Engineering (you'd need to email though, it's not on the general website). There was also a fellow selling them some time ago in the r3v classifieds (you'd need to google search).
Announcement
Collapse
No announcement yet.
m20 crank sprocket, on m52 crank need to modify or should slip on?
Collapse
X
-
Originally posted by redlightpete View PostYou'll need to cut the stepped section off the conical washer because the crank snout is a little too long. Also the m20 crank bolt is too long. The m52b28 one is shorter and works.
Comment
-
Had some junk parts laying around so assembled onto m52b28 crank
BOLT:
24V crank bolt is: 95mm Under Head Length (UHL)
M20 crank bolt is: 65mm UHL
so the bolt is 30mm longer
you cant get even a single thread with the m20 bolt
WASHER:
when you push gear on there is a 2.85mm step (i.e. the snout is 2.85mm recessed below gear face) so the step on the washer would need to be approx 1.5mm to ensure that the bolt pushes on the gear rather than bottoming out on the snout.
the stock washer has step 3.4mm long
i have a washer supplied by Metric mechanic they reduced the step to 0.9mm so machined 2.5mm off it, but you could reduce it by less.
Of course check when the time comes as there could be some small differences in the spacer length or gear overall length or snout length with alternate cranks to the m52b28.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
Comment
-
i would look to get a crank that doesn't need more than a polish only, except in rare circumstances i might consider getting it ground to the next size and re-nitrided.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
Comment
-
I have a crank spacer and a set of 2.7 liter connecting rods available. I purchased for do do a 2.8 liter stoker build on my 325i, but never got to it. PM me if interested.Mike
Cary, NC
Current Rides
1991 325iC - For Sale
2006 M3 Cabriolet
Past Rides
2000 323i Touring - Daily Driver
1994 325is (S50) - Fast Car
1998 Z3 - Fun Car
1986 325e (i engine conversion)
1969 Mustang Mach 1
Comment
-
thanks for the offer but I have too many parts as it is: extra cranks, connecting rods, pistons
need to start selling parts myself soon.
Originally posted by digger View Posti would look to get a crank that doesn't need more than a polish only, except in rare circumstances i might consider getting it ground to the next size and re-nitrided.Last edited by zaq123; 02-05-2017, 06:22 AM.
Comment
Comment