rph1974 said:
That's a good question. But for some reason this is a common problem on our cars. How many miles on your 86?
176K mi. I inherited the rig in 2000 at 93K mi. At 125K, I replaced the t-chain (for peace of mind since this is my road-trip rig, and I didn't want to hear the death rattle start, say, while in Death Valley!), added a new TRD cam, new rockers (for the new cam), new valve seals and exhaust guides. Since the radiator, oil/water pump were out, I put in reman OEM pumps. Also, new 3-row core modine radiator replaced the OEM 2-row core. New rotor cap/rotor/wires/plugs/radiator hoses/HG/belts, of course. All parts are OEM except the radiator. BTW, cam didn't feel to make any difference until I added a performance header followed by a larger diameter cat/cat back. Then it was like night & day. Still using the stock air box w/ no mods, OEM air filters, too. I then regeared to 4.56 (torsion diff in front, factory locker in the rear). Huge difference climbing the hills.
FYI, the CV joints/ball joints are still original. I just pump a little moly grease in there every once in a while. There's a 2" OME lift w/ front tbars cranked, but there's no additional wear on the front CV's due the manual locking hubs. Also, I'm still using the original Koyo front wheel bearings, and the were never repacked until 102K mi! After that, I repacked at 130K (Valvoline synthetic moly grease) and at 165K mi (Amsoil red MP grease). Rear sealed bearings are also original, but have play in them. I've never heard of them failing, except when someone tried to reuse the retainer (pressed on the axle shaft and holds the bearing on the semi-floater axle!).
Alternator & starter are all original, never touched. Brake fluid was never flushed in 14 yrs...was dark brown. I flushed at 120K mi, but it turned brown again quickly. Finally, I swapped in a FJ80 master. The old master (looks identical to the one on the FJ60) had this brown rusty sludge on the bottom...it's amazing it still worked, but that's Aisin quality for you. Swapped in a larger brake booster from a '92 Extracab mini last year. Combined w/ the custom Earls braided stainless hoses, carbon/kevlar pads, and valvoline dot 4 fluid, the braking is excellent...almost too much braking power! And I'm still still using the 4-piston calipers for the 4 cyl (two pistons smaller than the other two).
And just think...all this longevity for only $15K, new, back in '86!