H cold valve adjustment

thanks

Greg

What makes them hot ? Everything being too tight ?

Greg

As for break in - I ran it easy the first 5 hours, light load. Heavy load the next 5 hours. Then used it normally and changed oil at 50 hours. Changed oil again at 87 hours (it had been a year since last oil change). Most mechanics I have talked to recommend to break in an engine just like you are going to use it. Of course go easy the first few hours to be sure things get their initial "seat."

Owner's manual says to change after first 100 hours - I think that is a tad too long. I judge by what the oil looks like - not the actual hours. Short run times in cold weather make for dirty oil faster.

A couple more things: If you put in a new cam and lifters, you need to run at around 1/2 throttle for a half hour to break those in. I cranked my engine without spark plugs in until I got oil pressure before initial start up just to be sure everything was getting oil.

Good luck!

100 hours does seem kind of long for an engine with just a bypass filter. I was thinking something more like 2 hours.

Greg

If the oil looks dirty after 2 hours, by all means change it! And if it is dirty again in 5 hours change again.

I should also mention, do not use synthetic oil until it is broken in. Synthetic oil will not allow proper break in. I switched to synthetic when I changed at 87 hours - I use Mobil Delvac 5w-40...

I am not so worried about a bit of dust or stray gasket crumb as much as I think about the new rings scrubbing up against the new sleeves. Since not all the oil goes through the filter everytime it circulates, some of that metal is going to find it's way to the bearings.

When we put new rings in my Dad's 16 hp Briggs, and ran it for ten minutes, the oil came out looking like glitter. It did quit smoking though.

The motor on the H is a lot heavier and expensive to rebuild, so I would like to keep it together for as long as possible.

Greg