Maximum Valve Clearance Timing (SOLVED) - Page 2
 

Maximum Valve Clearance Timing (SOLVED)

Started by GnarlyBus, March 17, 2018, 05:13:48 PM

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luvrbus

You are doing fine ask for help most are helpful here,use the firing order makes it easier and I mark the the cylinders I do with soap stone so I don't forget where I was last  ;D.you were ok like Donald said if the injector is starting on the injection cycle the valves are closed
Life is short drink the good wine first

bevans6

I was going to say it's no harder than setting the valve lash in an old MGB, or sychronizing the carbs on a motorcycle. then I realized that maybe a lot of people haven't been doing that for 40 years like I have.  But every one has a first time for anything, and lots of people figure it out on their own, they don't get taught by a grizzled veteran.
1980 MCI MC-5C, 8V-71T from a M-110 self propelled howitzer
Allison MT-647
Tatamagouche, Nova Scotia

luvrbus

Quote from: bevans6 on March 19, 2018, 05:17:57 AM
I was going to say it's no harder than setting the valve lash in an old MGB, or sychronizing the carbs on a motorcycle. then I realized that maybe a lot of people haven't been doing that for 40 years like I have.  But every one has a first time for anything, and lots of people figure it out on their own, they don't get taught by a grizzled veteran.

Lol I owned a 1954 Corvette for 30 years up to 2000 before I sold it,it had a 261 CI inline 6 cylinder with 3 side draft carbs I never did get the hang of adjusting the carbs  ;D neither did anyone else   
Life is short drink the good wine first

Dave5Cs

"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
Somewhere in the USA fulltiming.

GnarlyBus

My first valve adjustment was a 69 VW Bus. I mean... A bus is a bus, right?! ☺
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

Lee Bradley

Quote from: luvrbus on March 19, 2018, 06:55:06 AM


Lol I owned a 1954 Corvette for 30 years up to 2000 before I sold it,it had a 261 CI inline 6 cylinder with 3 side draft carbs I never did get the hang of adjusting the carbs  ;D neither did anyone else   


Pretty rare engine. Generally found in trucks, we had a couple one in a '56 pick-up with a 4 speed hydramatic and one in a dump truck with 4 speed and 2 speed axle vacuum shift.

luvrbus

Quote from: Lee Bradley on March 19, 2018, 08:55:37 AM

Pretty rare engine. Generally found in trucks, we had a couple one in a '56 pick-up with a 4 speed hydramatic and one in a dump truck with 4 speed and 2 speed axle vacuum shift.

Yea it was a truck engine in 1954 the Corvette had a option of the 235 or 261 CI inline 6 both are identical in size even the same valve cover   
Life is short drink the good wine first

chessie4905

1954 Corvette was available with only 235 cu. in. engine.
Everything you didn't need to know about the 261:

http://1954advance-design.com/Web%20images/261-engine/index.htm
GMC h8h 649#028 (4905)
Pennsylvania-central

luvrbus

Quote from: chessie4905 on March 19, 2018, 01:05:59 PM
1954 Corvette was available with only 235 cu. in. engine.
Everything you didn't need to know about the 261:

http://1954advance-design.com/Web%20images/261-engine/index.htm

Mine was factory 261 it only had  38,000 miles on it when I sold it
Life is short drink the good wine first

GnarlyBus

Ok everybody, I finished adjusting the valves and timing the injectors. I really appreciate everyone's helpful words. Now that I understand how the system works it all seems so obvious, heh.

I found that the Snap on 5/16 and 1/2 wrap around wrenches were handy in some cylinders and the stubby wrenches I got at HF were better on others. After a few valves I got better at adjusting them a little before tightening the locknut. Some valves took 10 seconds and others took 10 minutes of back and forth trying to make sure they're just right. I rechecked them a couple rotations to be sure (with the stop lever blocked!).

When I went to fire it up... It sounds about the same but maybe a smidge smoother. :)

Drove 2 hrs today in Nevada on 95 and tested the repaired Jake brakes... But that story is for my other thread!

Here's a few pics to sweeten up the thread.
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

bevans6

Good job well done!  FWIW, the valve clearance tolerance is plus 2 thou, so if (for example) a 12 thou gauge goes in but a 14 thou gauge does not, the clearance is between 12 and 14 thou and within spec.
1980 MCI MC-5C, 8V-71T from a M-110 self propelled howitzer
Allison MT-647
Tatamagouche, Nova Scotia