front shocks

Need technical Q/A then you're in the right place

Moderator: martauto

chopper
E30 Zone Regular
E30 Zone Regular
Posts: 478
Joined: Sat Nov 28, 2009 11:00 pm

Post Fri Dec 27, 2013 3:41 pm

Need to replace my front shocks but don't know what size I need, it's a m20b25 convertible 1989. I thought it would be the 51mm insert?? Thanks in advance
jimmyspeed
E30 Zone Regular
E30 Zone Regular
Posts: 848
Joined: Sat Sep 08, 2007 11:00 pm
Location: riding a wagon wheel west

Post Fri Dec 27, 2013 3:47 pm

all 325s had 51mm
chopper
E30 Zone Regular
E30 Zone Regular
Posts: 478
Joined: Sat Nov 28, 2009 11:00 pm

Post Fri Dec 27, 2013 3:48 pm

Nice one
User avatar
harry_p
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 5313
Joined: Thu Oct 12, 2006 11:00 pm
Location: norfolk

Post Fri Dec 27, 2013 3:48 pm

All 325i should have the 51mm struts.
cheers,

harry
jimmyspeed
E30 Zone Regular
E30 Zone Regular
Posts: 848
Joined: Sat Sep 08, 2007 11:00 pm
Location: riding a wagon wheel west

Post Fri Dec 27, 2013 3:54 pm

no worries,

if you're having trouble removing the old collar from the top of the shock , cut a small notch in the collar with a grinder/hacksaw. Then place it in a vice , put your chisel/crappy screwdriver in the notch and smash it with a hammer - job done

oil should be in the base of the old leg, so be careful when you remove it

replace the oil if you are using a standard damper, it helps aids cooling and stops it sticking

if you are using a gas dampers no oil is required
Andyboy
Alpina Colada
Posts: 12576
Joined: Mon Sep 11, 2006 11:00 pm
Location: Notts

Post Sat Dec 28, 2013 10:39 am

Gas dampers also use oil for damping, and a bit of neat antifreeze is very good for transferring heat from the dampers to the strut body. Best tool for getting the collars off without butchery is Stilsons and a trolley jack handle.
chopper
E30 Zone Regular
E30 Zone Regular
Posts: 478
Joined: Sat Nov 28, 2009 11:00 pm

Post Sat Dec 28, 2013 12:18 pm

Thanks guys
TPS
E30 Zone Team Member
E30 Zone Team Member
Posts: 13119
Joined: Fri Mar 06, 2009 11:00 pm
Location: Hampshire

Post Sat Dec 28, 2013 9:47 pm

jimmyspeed wrote:no worries,

if you're having trouble removing the old collar from the top of the shock , cut a small notch in the collar with a grinder/hacksaw. Then place it in a vice , put your chisel/crappy screwdriver in the notch and smash it with a hammer - job done
Thats good advice, Not recommended, but I only way I got the collar nuts, undone by using welding gas, what a PITA to get undone that was!!
Image
1991 325i Touring Alpine White II
1994 318i Touring Sterling Silver