According to Bentley, crank end float should be 0.07 - 0.13mm, wear limit is 0.15mm. It can be measured from the flywheel end using feeler gauges and some sort of bolted on reference point, once the engine's been removed that is. As far as I know, the only way to measure it with the engine in situ would be to use a dial indicator on a mag base as above - unless anyone does know another way? I can just feel and hear some float on my crank pulley but don't expect the engine to be excessively worn. Might have to invest in an indicator at some point as it'd be nice to put a number to it.
Sounds about right. True (desirable) float is barely discernable. It's teeny: on my engine, I can't feel anything. A dial gauge clamped up should measure it. If it visibly or audibly thunks, likely the bearing is moving with the crank.
Bear in mind that valve clearances on a T1 are set to 0.15mm and you can certainly feel and hear that.
Using a new method of piling a load of feeler gauges up and crudely measuring the back of the pulley to the block -very scientific I know, I have the following guess - the movement is somewhere over .7mm I know what a decent bit of end float should feel like....this is somewhat more!!
hopefully most of the oil will stay in for this year then who knows - it’s either back to a 1600cc stocker or fire breathing crazy motor - there is a 1776 turbo off the shelf one that would probably do...
It’ll probably last many more miles. The issue with excessive endfloat due to the bearing moving every time you press the clutch is that over time the dowel hole holding the bearing will get wallowed out. Eventually, it may let go, causing the bearing to spin and block the oiler hole. Then it’s time for a new engine . Forget the turbo. Stick a nice set of twin carbs on it.
Somebody in an i10 overtook me when we were doing 40 in a 40 limit in the bus. So I sat on his tail for the next ten miles.
.7mm is out of vw spec but. I presume your not using it as a delivery van ? Pop a new seal in it will probably do 10 years with the mileage we do now !!
I know I had 0.13 mm endfloat on my previous engine. And although I could not see the movement it always "felt" identical to the tappet adjustment. It was a quick check I used to do .. has it got worse ? Yank and push on the crank pulley and feel it..
