So got this tool kit and its been great so far but now i'm putting the valves back in its hopeless to get the keepers in.

 

http://www.ebay.co.uk/itm/251417186160?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

 

 

Anybody else recommend a guaranteed tool or hack to get them in ?

Cool

Sorry,

 

I'm not saying this tool is great, rather that's its not doing the job and I need advice on how to fix the issue.

 

Cool

Ops only ever had a machine shop re do heads sorry.

 

Sorry,

 

I'm not saying this tool is great, rather that's its not doing the job and I need advice on how to fix the issue.

By the keepers you mean the two little suckers that hold the valve spring in once compressed? I just compressed the valve spring and using a combination of an thin aerial type magnet and mini flat blade screwdriver, placed them into position and released the compressor slowly.

Information herein:

 

http://www.twinturbo.net/net/viewmsg.aspx?forum=technical&msg_id=922136

 

and a JWT tool made for the job:

 

http://www.jimwolftechnology.com/customer_part_detail.asp?PartID=521

So how the hell did you compress the spring ?

 

I'm at my wits end with this and ready to chuck the hole thing in the bin and give up.

 

Been at it for 4 hours and only managed one and that was a fluke.

 

By the keepers you mean the two little suckers that hold the valve spring in once compressed? I just compressed the valve spring and using a combination of an thin aerial type magnet and mini flat blade screwdriver, placed them into position and released the compressor slowly.

I used large spring compressors that have a fairly open topped claw, i wasnt aware at the time of the correct tool so as i managed to get it to work i got them all done in no time really

 

Just to be sure, we are talking about the split collets that retain the the compressed spring assembly and not the valve stem seals?

It's just that I think the first link you posted refers to a valve seal removal- re fitting tool I think.

 

As for compressing the spring, as Andrew's links demonstrates.

You can either use a G cramp type tool wound down enough so as to expose the valve stem collet seat, (you will need the home made socket for access mind)

or you can use the bolted on version to wind down and compress the spring also.

 

Or, as Graham has just posted, you can also use a valve spring compressor clamp.

Yeh,

 

Its the two small collets if that's what there called.

 

I've gave in and bought a proper tool although I was hoping to have this done this weekend, now my build is delayed again.

 

The first tool I bought is to actually take them out and put them back but its just not suited for the zed being a generic cheap tool.

 

 

 

 

Just to be sure, we are talking about the split collets that retain the the compressed spring assembly and not the valve stem seals?

It's just that I think the first link you posted refers to a valve seal removal- re fitting tool I think.

 

As for compressing the spring, as Andrew's links demonstrates.

You can either use a G cramp type tool wound down enough so as to expose the valve stem collet seat, (you will need the home made socket for access mind)

or you can use the bolted on version to wind down and compress the spring also.

 

Or, as Graham has just posted, you can also use a valve spring compressor clamp.

compress the spring with the spring compresser and put a dab of grease on the grooved and outside of the collet and press it into the valve top with an electrical screwdriver or summit small...the grease will keep them in place till you release the compresser then tap the valve top with a hammer to make sure the collets are seated...dont try with a magnetized screwdriver as the magnet will not let go of the collets....goodluck and btw lee 15 mins lapping a valve in is too much mate and you run the risk of taking the angles off the valves and seat..each one out of a running motor only need a couple of mins max,just to clean the angle up and not grind too much away:wink:

Edited June 11, 20178 yr by znut

15 minutes was me being careful and not wanting to bugger things up.

 

I did take my time and cleaned every port each time I done it.

 

 

compress the spring with the spring compresser and put a dab of grease on the grooved and outside of the collet and press it into the valve top with an electrical screwdriver or summit small...the grease will keep them in place till you release the compresser then tap the valve top with a hammer to make sure the collets are seated...dont try with a magnetized screwdriver as the magnet will not let go of the collets....goodluck and btw lee 15 mins lapping a valve in is too much mate and you run the risk of taking the angles off the valves and seat..each one out of a running motor only need a couple of mins max,just to clean the angle up and not grind too much away:wink:

The "plastic bag" method actually also works well (as long as you have standard valve springs)

 

Only video I could find at the moment:

(fast forward to 1:20)

 

It needs some practice and best is to use a piece of EPDM or rubber instead of the plastic bag, but after you've mastered this method, installing those 48 keepers is a 15 minute job

The "plastic bag" method actually also works well (as long as you have standard valve springs)

 

A simple "odd sounding" idea that works - thanks for posting.

Ingenious :clap:

here's a slightly better video showing this particular method:

I did mine on the car and made my own tool to press the valve spring down

https://www.300zx.co.uk/forums/showthread.php?46303-oh!-dear-no-turning-back-now!!-valve-seals!!&highlight=valve+stem+oil+seals

 

no pics on the thread they have all gone im afraid :(

the tool I made if I remember clamps on top and then screws down hard to give you access to the collets, I had no probs doing mine with the heads on the car

be easier still on the bench.