Any suggestions on how to get this cylinder head off my MC16?

Got a top end rebuild kit from Tyga and so far haven't had any luck. Been using a rubber hammer as well as giving her a good pull. Have a set of brass punches but wanted to ask before using them as I don't want to damage the head as I plan on re-using it. Any Suggs?!

Ken
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take the entire cylinder off with the head still stuck on the cylinder. This way you can get at it from behind the cylinder head.

use the old cylinder (padded a little) and a rubber mallet to help it out. also, soaking it with WD40, or something penetrating to help it out may be an option.
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Charles Gallant

Thanks for the quick reply cgallant, Appreciate it, I guess I should clarify al lil more though. What I meant by the cylinder head was the cylinder itself, sorry bout that. I'm having trouble getting the forward cylinder off, any suggs?

Ken
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has it seized?
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wadda ya mean its too fast!

NOpe, hasn't seized, just due
for an overhaul. Any suggs aside from what should've worked? (beating it with a rubber hammer)
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well i would have suggested a rubber hammer but youve already tried it! if it still doesnt come off with some perserverence try putting the cylinder head back on and turn the bike over. the compression might shift it.
few years back id seized my yz250 absolutely solid and had the same problem. i ended up putting a strop round the head and attatching some chainblocks
hope you dont have to go to that extent
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wadda ya mean its too fast!

what you could do then is to use the cylinder head studs to "pull" the cyinder off the cases. Basically build a plate that has holes that the cylinder head studs can slide into. Attacht that plate to legs that reach down around the cylinder and meet on the case. Use the head nuts to "slowly" lift the cylinder off by tightning the bolts down a turn at a time for each nut.

So basically think of a bearing puller but for the cylinder.
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Charles Gallant

o, but make sure your piston isn't stuck, as forcing the cylinder off could damage the connecting rod.
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Charles Gallant

Worked like a charm! I used an old piece of steel and bent it in my vise, drilled a few holes like suggested and after a few extra cranks pulled the head right off the case. Then I jiggled it off.

Checked the crank thrust clearance once I got the piston off and its .59mm, so I'm very happy there's lots of life left in this little rocket.

Thanks again,

Ken
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I had a similar problem getting the top cylinder of my '28, I used an old hammer handle (just a bit of wood really I guess) and hit that with the mallet rather than try to hit the pot in situ.
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Please do not PM me technical questions, if you can't find it on the Forum start a thread

fontyyy wrote:... try to hit the pot in situ.

When did England start teaching something other then English in schools?
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Charles Gallant

cgallant wrote:

fontyyy wrote:... try to hit the pot in situ.

When did England start teaching something other then English in schools?

Sounds more like an American bastardisation! Oops, I mean Americanism!!

Should read en situ

Oh, and message to Ken... Hit it harder! But whatever you do, DON'T try lever it off. (Probably obvious, but you never know!)

It'll only be the gasket holding it all together, and possibly (but highly unlikely) some corrosion between the cylinder locating dowels and the studs. I will put my customary 50p on there being 1/2 the gasket left on the cylinder and 1/2 left on the crank case once it's all apart, just as if you had peeled it apart like a beer mat. You'll probably find someone "glued" the gasket in place with instant gasket several years ago!
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Andy.
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Hi Andy,
yea that was the case, the gasket was definetely glued as well. Somebody was paranoid! I been scraping it off both ends with a putty knife using gasket remover. Slowing me down a little, but I'm not in a big hurry.

Thanks again folks,

Ken
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Hey it's not everyday we get an english lesson 'thrown in',we'll all be called cohorts before long.

Well, we don't want the Forum sliding the way of the lower class marques, do we?!
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Andy.
NSR-WORLD.COM

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