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Username Post: My '60 classic project        (Topic#308201)
PLS 
"7th Year" Silver Supporting Member
Posts: 1466
PLS
Loc: Smyrna, Georgia
Reg: 06-07-12
12-06-19 02:14 PM - Post#2781602    
    In response to PLS

Thank you Bill. After your reply I did a little checking on the tool and how to use it and as I did I came across this CT post https://www.chevytalk.org/fusionbb/showtopic.php?t... which linked this on the dirt forum http://www.thedirtforum.com/pushrodlengths.htm, this info is waaaay over my head. There is a Summit Racing about 45 miles from me and they have it in stock ready for pick up so I may just run down there Sunday after Church and pick it up. While I’m at it may as well pick up one of the adjustable push rods but not sure which one to get. As far as I can tell my pushrods are 5/16” x 7 13/16” (7.80?). I may try marking the valve stems on cylinder #1 with a black magic marker this evening, adjust the valves and rotate the engine over a few times to see what happens. In doing this would you just take the play out or go ahead and do the extra 1/2 turn? Lamar



 


vet65b 
"9th Year" Gold Supporting Member
Posts: 631
vet65b
Loc: Albuquerque, NM
Reg: 02-09-06
12-06-19 05:49 PM - Post#2781619    
    In response to PLS

Lamar,
I would take the extra half turn. Let's see what others have to say. Bill



 
PLS 
"7th Year" Silver Supporting Member
Posts: 1466
PLS
Loc: Smyrna, Georgia
Reg: 06-07-12
12-07-19 07:07 AM - Post#2781641    
    In response to PLS

  • PLS Said:
I said in my post on 11-7-19 that “I disassembled the engine had it vatted and it needed boring .040. The machine shop that did this also reworked the heads.” Now I’m not so sure of the heads being reworked because there are to many things that just doesn’t add up. I have a little less than 1000 miles on the engine and it is hard to believe that the rocker arm could have worn that much of a gap in the one stud in such short time. The stud next to it also was starting to get a gap in it as well. Also, the rockers on the valve stem end are worn. Another thing is that I have the receipts for the engine parts back in 1980 but I have yet to fine anything what so ever that has anything to do with the heads so I’m thinking that I just cleaned the heads up and reinstalled them. When I removed the springs, I found that none of the umbrella seals were in place and most were up inside the spring so could this have been part of the oil consumption problem and oil on the spark plugs? After I got the springs off, I pushed a couple of the seals back on valve stems to see how they fit and there was no friction at all, they would just drop on. I used a borescope to watch the pistons come to TDC and I could see some deposits on top of them. I’m going to try and find a better scope because the image isn’t really that clear with the scope that I have.
I purchased a “Stud puller and Tap guide” and it came with 16 threaded studs. It wouldn’t go over two studs at the same time but worked great when I tapped the holes. Before I forget I want to stop and thank DonSSDD for letting me pester him thru this process via PM’s and emails. I got the two studs removed and the holes tapped. I removed the #5 exhaust stud first and used a strip of t-shirt to poke down in the hole. The void below this stud was small and shallow and was able to retrieve the strip with a screw but the void below the #3 exhaust stud was bigger and deeper and I was afraid that I would have a problem getting the strip out so I just used the shop vac while tapping the hole and then vac’ed it out and could not see anything down inside. Soooo… I have all new umbrella seal, all new springs and all new rocker arm installed and I am now ready to adjust the valves/lash. I have watched a ton of videos on this topic and they all seem to accomplish the same thing in a different way, remove the play between the push rod and rocker arms then turn an additional 1/2 to 3/4 turn depending on the video. It seems to be three main ways, 1. Do each cylinder one at a time, 2. Bring #1 to TDC and do both INTAKE & EXHAUST and do certain valves, rotate to #6 and do the rest. 3. Then there is this one… https://www.youtube.com/watch?v=5EGlb_VpTAw
I am leaning toward this procedure, any thoughts. Here is a link to a video of what I did, may not be perfectly correct but it is how I “done” it. https://youtu.be/CWNBZjzsqOQ Lamar




Just wanted to bring this forward because I still need some advice on the adjustment of the rocker arms/valves/lash. Lamar



 


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