INT.424 "pops" through intake
- Thread starter LAD1DER
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slowrev
Elite Member
Seen it happen before on that type of engine. Ususally due to the tractor sitting outside and the valves stick a bit. When you fire it up it bends pushrods.
The valves often come unstuck and are fine except for the bent pushrods.
I do recommend keeping it inside though
Ben
The valves often come unstuck and are fine except for the bent pushrods.
I do recommend keeping it inside though
Ben
slowrev
Elite Member
Water down the stack causes the stuck valves and bent push rods. I know from friends experience.
A can over the exhaust and make sure the exhaust is tight where it goes into the manifold. Some stove cement will seal it up pretty good if loose/wobbly.
the exhaust flapper things help but will let some water down the pipe sometimes.
Just keep the rain from getting into the manifold, no problem on the intake since it is an updraft carb
A can over the exhaust and make sure the exhaust is tight where it goes into the manifold. Some stove cement will seal it up pretty good if loose/wobbly.
the exhaust flapper things help but will let some water down the pipe sometimes.
Just keep the rain from getting into the manifold, no problem on the intake since it is an updraft carb
Soundguy
Old Timer
- Joined
- Mar 11, 2002
- Messages
- 51,575
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- Central florida
- Tractor
- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
I agree with slowrev... muffler or stove or chimney putty at any mufler to manifold connection where water could go down a connector sleave.. or wick in, and then a folgers can over the stack.
Soundguy
Soundguy
slowrev
Elite Member
And you can play catch the can when you start up without removing it
Ben
Ben
Soundguy
Old Timer
- Joined
- Mar 11, 2002
- Messages
- 51,575
- Location
- Central florida
- Tractor
- RK 55HC,ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC
NO.. tetra ethyl lead was added as an anti ping/spark knock ( octane issue ).. NOT as valve lube.
Likely your unit DOES have hardened valve seats.. check your parts catalogs. Gas in the old days was 70ish octane.. that makes for preignition and spark knock.... Modern 89/93 high octane gas is -fine- in low compression engines...
Soundguy
Likely your unit DOES have hardened valve seats.. check your parts catalogs. Gas in the old days was 70ish octane.. that makes for preignition and spark knock.... Modern 89/93 high octane gas is -fine- in low compression engines...
Soundguy
slowrev
Elite Member
My 2444 (68 vintage) which has almost the same engine has never had lead additive put in it and has had no problems.
Ben
Ben
