JPV
Senior Member
The adjustment nut is on the stud between the valve and pushrod, it doesn't move. The rocker arm pivots on it so it is very easy.
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Valve adjustment
- Thread starter Willys53
- Start date
The adjustment nut is on the stud between the valve and pushrod, it doesn't move. The rocker arm pivots on it so it is very easy.
92U 3406
Senior Member
I know. It was just next to impossible to get a socket onto that adjustment nut unless the rocker itself was in the perfect spot. I don't know if that's because of the aftermarket roller rockers but I was afraid of breaking a rocker or a pushrod from the socket impeding its free movement. I mean it certainly took a lot of effort to get a socket on there.
on the other hand, if the valve lash is a hot spec, while it is running is likely the most consistent, as opposed to the engine cooling down between the time it takes to set the first valve to setting the last valve, theoretically speaking. over the years i've done both on older engines but i prefer the cold setting and not getting burned lol and not having to clean up an oily mess afterward
Nige
Senior Member
Have you got the latest 238-9586 roller-bearing turning tool in your box.? They make turning engines over, especially the bigger ones, a lot easier. Not easy, just easier .........
Last edited:
Truck Shop
Senior Member
Small block and Big block static set. TDC #1 roll, 360* TDC #6
TDC #1------------TDC #6
#1 ex--------------#3 in
#1 in---------------#5ex
#3 ex--------------#7ex
#5 in----------------#2ex
#7 in----------------#4in
#2 in----------------#6ex
#8 ex---------------#6in
#4 ex---------------#8in
TDC #1------------TDC #6
#1 ex--------------#3 in
#1 in---------------#5ex
#3 ex--------------#7ex
#5 in----------------#2ex
#7 in----------------#4in
#2 in----------------#6ex
#8 ex---------------#6in
#4 ex---------------#8in
Nige
Senior Member
Or you can go for its big brother if you do a significant amount of work on 3500/C175 engines ..........
The 285-5989 Engine Turning Tool has been released for use on the engines for large mining trucks. The tool also can be used on all 3500 Series Engines and C175 Engines. The new engine turning tool bolts to the access hole in the flywheel housing. The tool also uses double needle bearings for smooth operation. The engine turning tool has an external, 25.4 mm (1.00 inch) hex head.
I don’t have any of the turning tools but we have some of the older ones in the toolroom. I do most of my work on the small (but not compact) to midsize construction equipment side so the C4.4s to C9.3s in dozers and excavators mainly. I will have to look into that should I get into more engine work, thanks for the part number.
Nige
Senior Member
If there isn’t a 238-9586 in your tool room it might be a good idea to suggest that they get one. They are the mutt’s nuts when it comes to turning engines, even smaller ones.
kshansen
Senior Member
- Joined
- Mar 11, 2012
- Messages
- 11,157
- Location
- Central New York, USA
- Occupation
- Retired Mechanic in Stone Quarry
Looks good, the baring tool I have I managed to scavenge from an engine, think it was in a 769 truck engine same basic engine as the original 988's had. Some of those engines came from factory with the tool and had a spacer that went over the gear end to keep it back from the flywheel. I grabbed this one for my use as I knew the place this truck was going was lucky if they had someone who knew how to change the oil much less adjust the valves!
Tinkerer
Senior Member
I was 16 years old and my first car was a Ford with a flathead V-8. If remember correctly the valve stems had to be ground to set the clearance. I real bi### when I took too much off.
I finally was able to afford a set of Johnson Lifters for it.
I finally was able to afford a set of Johnson Lifters for it.