Too much end float = engine rebuild?

[jimrat]

Hi

I dropped the engine/transmission out today as the exhaust is completely shot and it needs a new clutch. I checked the crank end float using a dial gauge and I have 0.4mm play

I've read somewhere that high end float usually means that the engine is worn, and there's no point just fitting thicker shims as there are other problems. Is that correct?

The engine (2.1 DJ) has done 157k miles, runs well, doesn't burn oil and has plenty of pull. I did a compression test a few months ago and everything was OK (around 150 psi). It's had regular oil changes from its history file. There are small oil leaks/weeps at the front and rear crank oil seals, but nothing major.

Should I be rebuilding the engine, or checking / replacing the shims? If it needs a rebuild, what are we talking: crank grind, new bearings and piston rings?

Cheers
Jim

[CovKid]

Wear does tend to be in more than one area but yes you could still re-shim it.

[itchyfeet]

Yes reshim it, shims get worn and dished (by riding the clutch iirc) so it may not have as much wear as you think.

[LeeME3]

I don't think you lose anything by trying a re-shim if, as you say, the engine appears healthy in all other respects. Possibly worth measuring the float again after a couple thousand miles to see if the excess play returns indicating the new shims are being worn quicker than expected which possibly would indicate a more serious issue.

[jimrat]

Hi

For future reference, I fitted a new thrust washer and new shims (0.40 and two 0.38mm) and end float is now back in spec. Happy days!

Cheers
Jim

[ghost123uk]

Thanks for posting back on that