ausmini
https://www.ausmini.com/forums/

Fitting new Valve springs
https://www.ausmini.com/forums/viewtopic.php?f=2&t=62252
Page 1 of 1

Author:  niffty64 [ Tue Apr 06, 2010 8:41 am ]
Post subject:  Fitting new Valve springs

Just thought I would share my way of fitting my new Valve springs.

When disassembling head or any engine part “Bag and Tag” all items so they go back in correct positions.

Head was checked over and caustic cleaned
All parts checked and cleaned
Old Valves where lapped into ports.

All the parts are ready to assemble
O-ring (New)
Split cotter
Cotter clip
Valve Spring (New)
Spring shroud
Retaining cap

Step 1
I manufactured this spring compressor out of some scrap steel and two 6mm bolts.

Image
Image

Step 2
Machine a nylon disk to suit your head compression space. This is to stop the valve from moving down. Lubricate valve stems with engine oil before fitting in valve guide.
Image

Step 3
Set up the head on the drill press.
fit spring shroud and retaining cap in spring.
fit spring over valve stem.
mount spring compressor on the valve assembly
Image

Step 4
Compress spring to reveal valve stem recess
Image

Step 5
Clamp drill press in position or get a friend to hold down.
(You will need two hands to fit O-ring)
Slide O-ring over valve stem. This can be a little tricky the O-ring has a neat tolerance.
Image

Step 6
Push O-ring down to bottom of the valve stem recess
Image

Step 7
Fit first half of the Split cotter. And set down on O-ring
Image

Step 8
Fit second half of the Slit cotter.
Image

Step 9
Release the drill press gently, to allow split cotter to seat into retaining cap and also hold O-ring in place.

Step 10
Fit cotter clip
Image

Step 11
Repeat for each valve.

it doesnt take much to carry out these kinds of jobs yourself. if you get good advice. Even for a novice like me.

Author:  peterw [ Tue Apr 06, 2010 12:45 pm ]
Post subject: 

Pretty flash tool. My version is a washer with a 5/16" bolt welded to it at 90deg and it goes in the chuck of the drill press. Been using it for 35 years on all sorts of cars. Don't have a photo.

Pete

Author:  mini maxx [ Tue Apr 06, 2010 8:49 pm ]
Post subject: 

Cool. Love it :D

Author:  awdmoke [ Tue Apr 06, 2010 8:57 pm ]
Post subject: 

A bit flasher than my method too.
Instead of the nylon disc, we used two 20 cents pieces gaffa taped together.

Author:  Asphalt [ Tue Apr 06, 2010 9:14 pm ]
Post subject: 

awdmoke wrote:
A bit flasher than my method too.
Instead of the nylon disc, we used two 20 cents pieces gaffa taped together.


I always stuffed a wet rag in the chambers :)

My tool is similar, but not as well and beautifully crafted as niffty's :) http://img261.imageshack.us/img261/9936/26689319.jpg

Author:  niffty64 [ Wed Apr 07, 2010 8:55 am ]
Post subject: 

Asphalt wrote:
awdmoke wrote:
A bit flasher than my method too.
Instead of the nylon disc, we used two 20 cents pieces gaffa taped together.


I always stuffed a wet rag in the chambers :)

My tool is similar, but not as well and beautifully crafted as niffty's :) http://img261.imageshack.us/img261/9936/26689319.jpg


I think its great to see all different method with pictures. how ever crude or refined they maybe. thats what this site is all about.

Author:  spraycanmansam [ Wed Apr 07, 2010 12:13 pm ]
Post subject: 

niffty64 wrote:
how ever crude.. they may be


I use a socket underneath the valve and a big open-ender on the retainer ...ghett-o :lol:

Page 1 of 1 All times are UTC + 10 hours
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/