Not enough end play?

[Morris]

I just installed new thrust washers and things seem pretty tight. The washers slipped in without any forcing, but the crank shaft as no endplay that I can detect.

Could I have it too tight????

 

[DrEntropy]

What's th' spec.? Can't be that much... 0.0015"? It's "close" I do recall. Actually, you may need to use a dial indicator to check it!

 

[jcatnite]

Morris, with the engine out of the car you should be able to take it with a set of feeler gages. The spec is 0.006" to 0.014". Just pry the crank (gently all you have to do is apply slight pressure to the screwdriver, don't lean into it) and see what size feeler will fit. A while back, I changed my thrust washers with engine still in the car. I bought regular and oversized since I had no idea what I would need. I put the regular in and it brought my end float down from .016 to .011. I figured I would see what the oversize washers would do. I could put them in but had no end float what so ever and there was difficulty rotating the engine. So the moral I guess is make sure you have the washers you need. But you should be able to take end float with a set of feelers.
JC

 

[Bugeye58]

JC, and Morris. It's permissible to mix sizes on the thrust washers to get to the required dimension. For instance, with standard washers, and .011" float, use a standard size at the front, and a .005" oversize at the rear, and you are down to the required .006" minimum float.
As I remember, the standard size is .090" thick.
Morris, a dial indicator and a stand with a magnetic base is a tool you really should have for any engine build. It doesn't have to be anything fancy or expensive for general use. One of the local tool supply places should have them for under 30 bucks. Or less.
Jeff

 

[jcatnite]

Thanks Jeff, I wondered about mixing them up but then, I was afraid of throwing things off center too much. Thanks for the advice! I'll probably be using it here in the next few days...
JC

 

[DrEntropy]

Argh... so I'll go sit in th' corner for a while now... again. /ubbthreads/images/graemlins/crazyeyes.gif

 

[Bugeye58]

JC. at .011" you're pretty close to the nominal .010". Although the spec is written as .006"-.014", it probably should be .010", plus or minus .004".
Jeff

 

[jcatnite]

This is my first experience with these little engines. Everytime I post on here I learn something new. When I put the engine back together this time I'll put it closer to .006".
JC