New motor parts..

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

Moderator: martauto

Post Reply
m_jermyn
E30 Zone Team Member
E30 Zone Team Member
Posts: 4208
Joined: Sat Mar 14, 2009 11:00 pm
Location: Sydney Australia Mate

Tue Oct 13, 2009 9:56 am

Going to do a engine rebuild sometime soonish and was thinking what parts need replacing. So what I thought would be a good idea is a list of parts that need replacing. The parts could be catergorised into 2 parts HEAD and BLOCK... or TOP and BOTTOM

I also think it would be a good idea to have two sections to each consisting of parts that are recommended changing and parts that are highly recommended {your a idiot if you dont change them}.

For example



HEAD/TOP..

Recommended parts..
regrind cam

Parts that must be replaced..
head bolts
valve guides
cam seal
head gasket
rocker cover gasket

ect ect

I think this might be a very valuable tool to those of us who are thinking about doing a engine build.. We could easily look up the wiki and see what parts we are absolutely going to have to buy and also see what other parts that are advisory but not critical. If budget permits buy them.

Could people WHO KNOW WHAT THEY ARE TALKING ABOUT post some parts so we can get a list going.

Mike
E30BeemerLad
Married to the E30 Zone
Married to the E30 Zone
Posts: 16806
Joined: Mon Mar 28, 2005 11:00 pm
Location: Norfolk

Tue Oct 13, 2009 7:27 pm

When you buy a "headgasket set" you get all seals & gaskets associated with the head so no need to buy a rocker gasket as far as I know.
m_jermyn
E30 Zone Team Member
E30 Zone Team Member
Posts: 4208
Joined: Sat Mar 14, 2009 11:00 pm
Location: Sydney Australia Mate

Wed Oct 14, 2009 12:08 am

bearings
rings
engine gaskets

oil pump?


Come on guys what else?

Mike
m_jermyn
E30 Zone Team Member
E30 Zone Team Member
Posts: 4208
Joined: Sat Mar 14, 2009 11:00 pm
Location: Sydney Australia Mate

Wed Oct 14, 2009 12:11 am

valve guides
cam seals
User avatar
N00b
E30 Zone Addict
E30 Zone Addict
Posts: 3954
Joined: Wed Oct 22, 2008 11:00 pm
Location: Purgatory

Wed Oct 14, 2009 12:12 am

Oil pickup pipe.
e30topless
E30 Zone Team Member
E30 Zone Team Member
Posts: 13598
Joined: Wed Aug 23, 2006 11:00 pm
Location: surrounded by scrap

Wed Oct 14, 2009 12:20 am

while you are in there, thermostat , cam belt and tensioner,waterpump

and a new clutch on the re-fit :)
User avatar
500
E30 Zone Newbie
E30 Zone Newbie
Posts: 51
Joined: Thu Sep 24, 2009 11:00 pm

Wed Oct 14, 2009 12:20 am

Rockers, I had one snap the other day and noticed that the snapped one had worn down, I'd replace them all, 10.50 each from GSF, I'd assume that OE would be double that but the non OE look to be better cast than the OE ones

Cam seals should come with head set, there are often valve seals in there too
daimlerman
**BANNED**
Posts: 15968
Joined: Mon Feb 27, 2006 11:00 pm
Location: Grumpy Old Man

Wed Oct 14, 2009 2:19 am

Was talking to andyboy on Sunday,he says there is normaly no need to replace valve guides unless the wear is obvious...just fit new seals,part of the head gasket set.
Exhaust valves wear/burn far more than inlets...
Cam/rocker shafts,cam wear is obvious when you examine the tips of the lobes,but also look at the bearing surfaces,in the head the cam bearings are not replacable...
ALL other seals/gaskets should be changed.
Bottom?
(oh yes please,the actress said to the bishop)
bearing shells,both big end and main,all seals,check the oil pump for wear,if the gears slop about it's had it!
There's a mesh strainer,check for holes...
Waterpump,if it spins freely and has no slop in the shaft,why replace?
Cam belt is a must,less than £10 so it's daft to re-use.
Youth is wasted on the young.
m_jermyn
E30 Zone Team Member
E30 Zone Team Member
Posts: 4208
Joined: Sat Mar 14, 2009 11:00 pm
Location: Sydney Australia Mate

Wed Oct 14, 2009 10:12 am

So far we have the following items. Please add more that should be there

HEAD/TOP..

Gasket kit
head bolts

rockers??
inlet/exhaust valves??



MOTOR/BOTTOM..

bearing shells big end and main
mesh oil strainer
oil pick up pipe
piston rings

oil pump??
water pump??


MISCELLANEOUS

Cam belt
thermostat
cam belt tensioner
Post Reply