It's come up again on the socials - the engine mount issue across the Isuzu and Mazda 4JJ3 platforms. PART NUMBER: IA-7551935980 [Instrumental Credit: Low Rider - War]
My auto BT50 did this. Rattles on idol some times until it breaks more. Mazda inspected a few times over the space of a few months and didn’t find it. Someone online posted there’s, I stuck my camera on video in and saw the same cracks, both sides completely cracked and centre bush flogged. Took back to Mazda and they didn’t still even diagnose it after I showed them photos and told them what happened. Didn’t accept their no, they reinspect and agreed to finally replace. I suspect it has happened to a lot of these unknown to the driver yet!
Does this apply to 4jj2? I feel the ladder chassis has been engineered with a tad too much flex causing a few issues. The issue video subject mount, inner guard cracks and the body mount failures imho and the suspect re this being the flimsy front bolt up cross member. Replaced that myself with the cross member from Superior Engineering for diff drop. That plus full chassis Boos Bash plated to transfer case. Combined chassis flex reduced imho and as a result less stress on engine mounts, on body mounts and other components reducing failures imho. This is just a theory of mine. Keep up the good work and mod ideas mate.
Thanks, mate. Yes, bash plates will increase rigidity, but crossmembers won't unless there is diagonal bracing in it. The flex in the chassis is to improve drive quality along with a lot of other aspects ie. Softer, body mounts and engine mounts. Some are just simply poorly designed but great for spare parts departments... This one here is directly related to the new rear engine mount/gearbox mount on the manual and auto of the 4jj3 platform.
Hey quick question do your 2 inch body lift kits have a gear stick/ lever extension i dont know if this is a thing or not just been told about it but didnt see it in the body lift video
