Wheels look....but hit those hubs with some black spray paint! (and maybe think about some black lug nuts?)

 

wardriver - yep, I plan to - I am waiting for the new lug nuts to come in -- they were back ordered ... and I am planing to paint the hubs black...

 

Kat: If you have compression tester it should have leakdown test capability. I have a Craftsman and it does...

 

Some do, most dont I have 2 separete ones and never really found ones that have 2 in 1.


Kat,
Yes when the lobes are pointing up or at least make sure the lobes are not touching the shim.

 

New valve clearances -- I made sure this time that the lobe was 90* from the head surface - IE lobe straight up...

cyl 5 in - .011 cyl 6 in - .011
cyl 5 ex - .009 cyl 6 ex - .007

cyl 3 in - .011 cyl 4 in - .011
cyl 3 ex - >.035 cyl 4 ex - .008

cyl 1 in - .010 cyl 2 in - .010
cyl 1 ex - .007 cyl 2 ex - .010

analysis?

The FSM says that intake should be between .007 - .011 and exhaust should be .009 - .013

So, it appears to my uneducated self that the intake valves all look good. All of the exhaust valves are "tight" (is that the correct term?). If my leakdown test does not show anything out of the ordinary, can i safely adjust my exhaust valves to within spec, put a new passenger side cam on and put her back together?

Kat...

PS - Leakdown tester shipped today and should be hear about the end of the week. I have the fancy craftsman compression gauge and it says that it can hold air in the cylinder.... dont i need to be able to gauge how much is being lost, hence i need the two gauge setup of the leak down tester?

Thanks as always

 

^ Well yea you defiantly have a problem on #4 exhaust I talked to cam grinder and he said he can reweld that cam lobe if you wanted as well. Brings the cost up $50 but you will have a perfect grind done.

Of course thats if you are going with the same cams as before

Leak down has 1 or 2 gauges....pressure hold is a different thing.

 

Opposite direction = 180 degrees (I assume straight up means straight away from the valves)
Defiantly = insubordinate, rebellious
Definitely = absolutely, certainly

On the other hand, impressive and interesting project you have here. Just saw somebody selling a 91 4runner for $500 here with bad compression in 2 cylinders.

 

With a leakdown tester you will be applying air from your compressor constantly and the gauge will show you what % of the air is leaking... then you determin where... quite different from a compression tester.

 

yes, the leak down tester uses a higher psi than you will attain during a comprettion test and also does it in a manner that does now turn over the engine so the valves will stay closed.

 

Awesome, thanks for all of the information!

Dumb question - Will my compression change once I fix the cam/shim, or should it be the same regardless...

 

If you have no valve leak, it will remain the same. It will all boil down to whether the valve is seating properly.

 

Leak Down Test Completed! I think the motor has a problem, but I need you all to let me know....

I am going to put the readings up from the test - I started each cylinder at TDC(I learned the put a screwdriver in and bring it to the top method, after it blows my finger off of the hole) and both gauges at 76 PSI EVERY time.

Cyl 6 - 60---> 56 = 6.6% from intake (a lot)
Cyl 5 - 63---> 58 = 8% leaking below intake valve area
Cyl 4 - 70---> 63 = 10% leaking from intake (little)
Cyl 3 - 60---> 24 = 60% leaking from EGR (a lot)
Cyl 2 - 54---> 50 = 7% no leak or too small to find
Cyl 1 - 65---> 57 = 12% no leak or too small to find


HELP - what does all of this equate to?

Kat

 

Bump...

 

From EGR? that could mean either intake or exhaust valve leak...ide assume intake... it son the same cyl as the screwed up lifter/shim right?

 

Yea its on the #3 cylinder - Definitly coming out the egr tube -

Can i do this without taking the heads off or do the heads need to come off and be rebuilt?

 

If you have valves leaking, the head needs to come off.

 

great, thanks for being the bearer of bad news -- I think I am going to have my shop do them for me - they said they would put the new cam and rebuild the heads for $300 - Time to order some HG's from Ted...

 

300 for both with new cams? That's a good deal.

 

Just one new cam - yea, hes a pretty decent guy - he charged me 350 when i had him put Johnny's cams in and rebuild my heads with OS valves.... all i had to do was bolt them back on...

 

if yea dont need that busted cam let me know i can always use cores