Crankshaft end play

[Bugster78]

I am disassembling a type 4 motor. Have not split the case yet, but I can push the crank shaft all the way to the rear, and then measure end play when I push it forward. It moves 0.07 inches. Will flywheel shims correct this, or does this indicate a major problem with this engine??

I have already found a melted #1 cylinder exhaust valve, and the cocked valve seat that resulted also damaged the number one piston. At a minimum need a new valve head and replacement piston/cylinder set, so trying to assess if this degree of end play suggests I've got more problems ahead.

Thanks in advance for any advice..

[Howesight]

Are you checking end play with the flywheel removed? If so, that is incorrect.

Do you actually mean 0.007" instead of 0.070"? The specification is 0.003" to 0.005" and 0.006" is the wear limit, if I recall correctly. It's been a while since I built a Type IV engine. If your flywheel is on and you actually have 0.070" end play, the engine needs to be completely disassembled and you may be in for some tearful moments.
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'86 Syncro Westy SVX

[MarkWard]

It is also a suggestion to not try and tighten the end play on a used engine. If set properly the last time, the endplay should not change much. Any change if set properly originally would indicate wear which is normal. Shimming it tighter might create a problem since wear is rarely even. As mentioned above, verify your decimal point.