First time valve adjustment

[bugboy]

I just checked my valve clearances on my '87 "Orange Abomination" for the first time.  With some info here, a Clymers and a Haynes it went OK.

Here is what I came up with:

INTAKE
1A .10mm  with a 2.78mm shim- should go to 2.75?
1B  .08mm  with a 3.10 shim - should go to a 3.05?

2A  .08mm with a 2.75 shim - should go to a 2.70?
2B  .09mm with a 2.75 shim - should go to a 2.70?

3A  .10mm with a 2.78 shim - should go to a 2.75?
3B  .08mm with a 2.78 shim - should go to a 2.75?

4A  .08mm with a 2.85 shim - should go to a 2.80?
4B  .08mm with a 2.78 shim - should go to a 2.75?

EXHAUST
1A  .10mm with a 2.75 shim - should go to a 2.65?
1B  .04mm with a 2.75 shim - should go to a 2.60?

2A .04mm with a 2.75 shim - should go to a 2.60?
2B  .06mm with a 2.75 shim - should go to a 2.60 or 2.65?  can I do a 2.60 and be OK (.01mm too much clearance)

3A  .12mm with a 2.70 shim - should go to a 2.65?
3B  .15mm with a 2.70 shim - should go to a 2.60?

4A  .15mm with a 2.75 shim - should go to a 2.70?
4B  .05mm with a 2.75 shim - should go to a 2.60?

I just wanted to run this past some folks with experience.  If this all looks good, I'll start figuring what I can swap around and what I need to order.  Looks like Randy is gonna get some new business.

[Pat Conlon]

Yep, looks good to me, I spot checked against the charts shown in Haynes, intake shims on page 1-20 and exhaust shims on page 1-21
Again, I just spot checked. My first time, I made a mistake using one table for both intake and exhaust, which you did not do....Cool
FYI, In the Files Section LA Mike posted a nice work sheet which helps organize my shim notes: http://www.fjowners.com/index.php?topic=1800.0

Kudos laddie!

[bugboy]

Thanks Pat.  I have several of those valve worksheets printed and they are great.

I think I'll go to a 2.60 on 2B which will give me a .21 on that exhaust valve.  That's .01 out of spec but from what I read on here is that the clearances will get smaller over time so it should come into spec fairly quickly. Does that sound reasonable?

[Pat Conlon]

That's good overall logic. Set the valves a tad on the loose side, especially the exhaust valves.

I have heard about folks setting their intake valves so that 1 valve opens on time (within spec.) and the other intake valve opens later (loose spec) which, according to the theory, causes within the cylinder a swirl action of the intake charge promoting better fuel/air mixture and cylinder fill.
IIRC This idea came from the Honda guys.