loganhorse
Bronze Member
Anyone have this?
Model 441677
Type 0131 E1
Code 060901YC
21 horse Briggs
Model 441677
Type 0131 E1
Code 060901YC
21 horse Briggs
LA130 Valve Clearance
- Thread starter loganhorse
- Start date
- Views: 11789
LittleBill21
Elite Member
Armature air gap . . . 0.008 0.012 in. (0.20 0.30 mm)
Spark plug gap . . . . . . . . . . . . . . . . . . 0.030 in. (0.76 mm)
Valve clearance with valve springs installed and piston 1/4 in.
(6 mm) past top dead center (check when engine is cold).
See Repair Manual P/N 273521.
Intake . . . . . . . . . . . . . 0.004 0.006 in. (0.10 0.15 mm)
Exhaust . . . . . . . . . . . 0.004 0.006 in. (0.10 0.15 mm)
This is for all 440000/400000 series...
Spark plug gap . . . . . . . . . . . . . . . . . . 0.030 in. (0.76 mm)
Valve clearance with valve springs installed and piston 1/4 in.
(6 mm) past top dead center (check when engine is cold).
See Repair Manual P/N 273521.
Intake . . . . . . . . . . . . . 0.004 0.006 in. (0.10 0.15 mm)
Exhaust . . . . . . . . . . . 0.004 0.006 in. (0.10 0.15 mm)
This is for all 440000/400000 series...
OP
loganhorse
Bronze Member
Thanks! I'll double check mine, mower good for a short time after setting valves.
OP
loganhorse
Bronze Member
Anyone happen to have a download for the manual? Apparently what I thought was the correct procedure isn't as it won't start now.
Richard001
Veteran Member
Well will need the model and serial number from the engine to help find the correct manual.
See photo:
Richard
I would guess that you have identified the exhaust valve as the intake ? Intake valves are on the top. Once the valve opens complete the cycle and use a dowel to identify TDC and continue 1/4" past. Then set them .004 intake and .006 exhaust on that cylinder. Repeat that whole process on the other side. Button it up and done. Before starting make sure the rocker bolts are secure and that all 4 valve guides protrude relatively the same distance from the head. Google an Intek twin manual should you need it. Some older manuals will give different specs. .004/ .006 are current. .003/ .005 acceptable.
OP
loganhorse
Bronze Member
Am I looking for the intake valve to open then complete? Im not doing something right. Grr
Richard001
Veteran Member
Make sure that you are setting the valve gap on the power or compression stroke.
So the intake valve opens and closes as the piston travels downward. The top of the next stroke plus 1/4 inch is where the lash is set for that cylinder. One you are done with that one, roll the engine around a revolution and look for the intake valve to open and close as you did the first time. You are now ready to set the lash on that cylinder. I had given you a couple of things to watch over. In addition as you are watching the valves opening and closing, compare how far each valve is opening. They should be reasonably the same. If one valve doesn't open near as far, you have other issues. You really didn't say why you are setting lash, so I'm unsure if this is an attempt to solve a runability issue or just PM.
