Ive just had a pull on my crank pulley and felt some movement a quick check with a steel rule and it appears i have about 0.5 mil endfloat The engine was rebuilt with new crank and bearings approx 1000 miles ago Am i looking at a serious problem and the case is going to have to be split? If the engines going to need rebuilding again then ill have to sell the bus because theres no way i can afford to repair or replace it :-
Cheers snotty ill await there input This is the last thing i needed just when there was light at the end of my bus resto journey
Question - Are you sure? I thought my new engine was similar - I pulled and pushed, it seemed to move a lot - I'd have guessed 0.5mm or more. I had Laurie on phone at the time and he could here it banging to and fro and was having kittens! I put dial guage on it and it was bang in centre of spec. As to shimming it depends what's causing the excessive end float. If the thrust bearing is loose, then no you can't shim it. Shimming it will lock the crank to the loose bearing. If it was never done right in the first place then yes, shim it correctly, but with 0.5mm I doubt that's the issue. When you say it was rebuilt 1,000 miles ago, what was done is the question. If it needed and didn't get boring out then old problem if back. There is another answer. Lots of vans are like this - don't worry and just use it.
Brand new crank and bearings were fitted when it was rebuilt but i dont think the case went for machining I cant ask the guy who did it as he passed away a few years ago Ive been out and measured at the flywheel end now and id say its slightly less than 0.5 mil but without any gauges i cant be more specific Whats the end float allowance before remedial work is needed?
That sounds fine - it'll probably run forever (or until you get round to fixing it). If it's any comfort, my "reconditioned" - I use the word in the loosest possible sense - Vege engine prob has the same, or more. It just keeps on going. I can't be arsed to take it out just yet. If it is substantially bigger, as above (is that Zed?), the no 1 bearing shell is moving in the case. Bit more serious, as the dowel hole can oval out and the oiler hole become obscured, leading to great excitement.
It's all really down to you cat, if you can't afford to fix, do you really want to know? As Snotty says prob nowt to worry about. But yes you should be able to see the brearing move (if it is) when you remove flywheel, seal and shims. You can of course do your calcs, re-shim bolt, the flywheel back on and see if the engine's seized before you put the new seal in. In fact, deliberately over-shimming to seize the flywheel to the bearing, then to and froing the flywheel will show up if the bearing's moving or not.
Evening... am I fashionably late?? Spec on end float is 0.07 - 0.12mm with a wear limit of 0.2mm I think.. I know you're a worrier Rick, but the best thing you can do is pop the flywheel off, and measure your shims, and see if you can see if the thrust bearing in the case is moving!!
Just looking in the bentley manual and it gives crankshaft end float for a single carb engine as 0.07 - 0.13 mm so its in tolerance then?
Lol we posted more or less the same paul I dont have a micrometer here so measuring the shims is going to be a problem I think ill remove the flywheel as i want to replace the seal anyway and see if i can spot any movement in the bearing and hopefully there isnt any and i can just pop the shims and flywheel back on
