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IH CUB LoBoy Series - 154, 184, 185 Forum -- Questions and answers to all of your LoBoy related issues.

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Re: 154 Stuck Valves

Tue Feb 12, 2013 11:21 pm

Once you get all the valves unstuck, it would be a good idea to adjust them.

Image

Re: 154 Stuck Valves

Fri Feb 15, 2013 9:25 am

#1 to seize valves on cub L head engine: Ether
Stuck valves are not too bad.
Prior to restoration, my uncle had tried to jump start the '47 cub and used alot of ether and never got it started.
Because the porting into the L head engine sits in the block atop the pushrod cover and ether like anything else runs downhill, and because the machine was sitting before that, and because the machine did not start(he connected the jump wire to the mag ground lug and burned the wire off the coil, the ether cleaned and dried the valves and pushrods, and they rusted in place. In addition to taking off the side inspection cover, had to pull off the oil pan and head to free them.

1) One good thing is that I saw the engine had never used detergent oil...good to know.
2) The other lesson for everyone out there is: If anyone ever uses ether to try to start an L head cub and do not succeed, make sure you spray some marine fogger or
silicone lubricant into the intake and crank it a bit before letting it sit. If you get back to it, that is fine, but like everything else life gets in the way and tomorrow may be next decade.

Re: 154 Stuck Valves

Sun Feb 17, 2013 12:49 pm

Ditto on the deal i would of grabbed it too.

I use seafoam in the crankcases and gas tanks in all my tractors it's an upper lube. The valves do dry out and stick but with using seafoan it can't happen.

Re: 154 Stuck Valves

Mon Feb 18, 2013 7:18 pm

i have also got trouble with my 154. changed points plugs condenser cap rotor adjusted valves changed carb. adjusted timing acording to the book and still will not run any better then it did. need help bad before i go back to drinking. :lol: maybe i need to go back to the valves. tom

Re: 154 Stuck Valves

Mon Feb 18, 2013 9:01 pm

tomcat wrote:need help bad before i go back to drinking.
Start a new topic with your tractor's problem(s).

Re: 154 Stuck Valves

Mon Feb 18, 2013 11:01 pm

Eugene wrote:
tomcat wrote:need help bad before i go back to drinking.
Start a new topic with your tractor's problem(s).


:shock:

Re: 154 Stuck Valves

Sat Mar 16, 2013 8:44 am

Add seafoam to the gas tank and crankcase this will lube the upper and lower section of the valve stems and guides.

BTW You stole this 154 with the attachments. Wait till you get her running and mow with it. These are awesome machines too. I love the fcub and the int154's.

I see these in excellent looking and running condition sell for $3,500.

Re: 154 Stuck Valves

Sat Mar 16, 2013 9:18 am

PM sent.

Re: 154 Stuck Valves

Fri May 17, 2013 8:26 pm

Picture of the stuck valve
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Re: 154 Stuck Valves

Fri May 17, 2013 8:35 pm

Cant get it loose so out comes the motor, four head bolts sheared at the top of head.
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DSCN0314.JPG (358.58 KiB) Viewed 130 times
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