ANDY ROBERTS 45/08 April ’89
The manual says that oversize thrust washers were not fitted to the 2500 engine, and therefore some engine reconditioners only supply standard thrust washers. There is no reason why you can’t fit oversize thrust washers to a 2500 engine, and if the end-float is outside limits with the standard washers every reason why you should. Note that the allowable endfloat on the 2000 is 0.006″ to 0.014″, whereas on the 2500 engine it is only 0.006″ to 0.008″. This is what the book says, but I am a bit sceptical! Certainly 2500 engines seem more prone to dropping their thrust washers than 2000’s, but I would not worry until the end float exceeds 0.014″ in either engine. Thrust washers are available 0.0025″ and 0.005″ oversize, which of course reduce the endfloat by 0.005″ or 0.010″ respectively, since there are two of them.
(Ed’s note -You can use a standard one and an oversize one to give endfloat reductions of 0.0025″, 0.005″, 0.075″ or 0.010″!). (Other oversizes are also available – Uncle Stan Part).
