Motorcycle Repair: SEIZED MOTOR, steering wheel puller, die grinder


Question
I HAVE A 1965 HONDA DREAM 305 THE PISTONS ARE SIEZED IN THE HEAD ONLY FROM SITING ALONG TIME WHAT WOULD BE THE BEST WAY TO GET THE PISTONSOUT OF THE HEAD WITH OUT BREAKING ANY THING YOUR HELP WOULD BE VERY HELPFULL THANK YOU FOR YOUR TIME....

Answer
Randy, I have an engine repair manual available on CDROM that details this procedure. It is a little too long to detail here, but the short version is that you have to find the master link on the camchain and disconnect it, if you can. Sometimes, you have to look around to locate it, including removing the oil pump on the bottom. Using a small 90 degree scribe, you can usually get the master link clip apart. If it is centered in the middle of the cyl block, then you may just have to cut the camchain with a die grinder/Dremel tool. That will allow you to remove the cylinder head and access the pistons in the cylinder block. Squirting some diesel fuel, ATF or other penetrating oils can help the process, but DO NOT start pounding on the tops of the pistons with a hammer.
I found a large steering wheel puller from Harbor Freight or similar sources can be fitted over the cyl studs, then you can use the tool to push the pistons out of the cylinder block. There is a photo if the setup in my repair guide. I also have a complete Dream Restoration guide file set, including parts manuals, etc.

If the engine has more than about 10k miles, then you will have to tear the whole thing down anyway for other wear items, like the kickstarter pawl, low gear bushing and have a look at the shift forks, while you are in there.
You will need a special tool to remove the rotor from the end of the crankshaft, but that is the only really unusual tool needed to tear it down.

Bill Silver
www.vintagehonda.com