03-13-2021, 01:35 PM
(03-12-2021, 05:13 AM)max_imp Wrote: Just had an idea Dave, do you think it is possible that the brass center part of the piston is sintered?
Sintered bronze is porous, is used as bearings for starter motors and the pores can/should be filled with lubricant, what if some were not filled and made it off the assembly line and got used on some of the 2014 models?
Hi Max. I saved my old IACV and just looked at it; the moving piston does not appear to be sintered. It has a very smooth surface, possibly polished. It doesn't look like it is brass, and I don't think it is chrome plated; it is non-magnetic. I would guess aluminum, but I think an aluminum surface would oxidize and not maintain this shine. It sure looks like steel, maybe stainless? What's your guess? I posted a picture of it somewhere in this post a couple of years ago and the color in that picture does give the impression that it is brass, but the picture is misleading.