jimH93

What year and mileage is your LS400? Also what climate was you car in most of the time? I am in the same situation with 136k. Also once you open it up it's not just the belt it's also time for a water pump and the belt pullys,etc. the belt is about $60.00 and the rest of the parts are going to be around $250 to $300. the reliability of these cars make you think time is on you side. Jim

OK thanks to Richards advice I bought new clamps at Napa. Repaced the clamps after cleaning all the grease with solvent, then applying some RTV to the boot seal area. Tightend the clamps & let it cure for 2 1/2 days. Yes I put new grease in th eboot prior to sealing it. So far so good no grease leaks after a week Jim H

Read through the responses and I got to admit with my 93 LS400 having 120K it is still a great car. I like doing a lot of my own work on my cars and the timing belt should be done according to the scheduled maintenance in the manual. As well as a valve adjustment. Has anyone ever heard of a timing belt breaking on a LS400? If so what else was did it damage when it broke. For those of you that have changed one what should be a fair price to pay for the work? Or has anyone ever replaced on on there own? Jim H 93 LS400

I own a 93 LS400 with 120K I am wondering myself about the 120 timing belt & valve tune up. The car runs great & is still quite so if anyone has information on the timing belt & vale tune up please let me know. Other than that it's a great reliable car with a fantastic ride. Jim H

I have 120k on my 93LS400 Replaced a O2 sensor and a TP sensor, and an alternator. I have owned the car since 86K. Jim

Joe Last post should have said I am not the original owner. But you already new that Jim

Joe I am not the owner but have had the car 2 yrs and added about 40K. It now has 120K. I cant say when it happend but because it is not very visible even on an oil change. When I had it up on four jack stands to do the trans filter I noticed it setting up the rear jack stands then took a closser look. I will crawl under it again & look it over tonight but Richards obsrevation on the cv seals might be it. The R & L side of the diff housing where the cv bolts up was completely wet but not dripping. So it's grease there as well as grease sprayed on the underbody. If it were comming out of the boot I think the boots would have some grease on them but it's hard to say. I do drive the car daliy on the inter state at 70 to 80 mph for 20 miles each way to work so at high speed & some heat the grease could get the diff wet & spray the underbody. The strange thing is that it is on both sides at the same time. The RS is more but still strange. Thanks for your input Joe & Richard. Any other thoughts would be welcome. Jim

Richard it is not diff oil. The grease is caked up & stuck to the bottom of the floor pan & some on the exhaust. If it was 90wt diff oil it would have migrated around. Have you ever heard of this or have seen it before where the cv grease comes past the ss band? I just took the car for a 800 mile trip so it could have happend then but I realy don't know. I saw it when I was doing the trans filter. I like your idea of removing the clamp & reloading the boots. Do you know if the bands are available? Thanks for your advice this is a great form, glad I joined. Jim Palatine Ill.

My 93 LS400 has grease sprayed on the under body next to the differential on both sides. The CV boots are not ripped or wet around the edges but there is grease on the car like the cv boots were open. It is not 80/90 diff oil but grease. can anyone comment on this or ever see it before? The differential flanges are wet but not dripping. Thanks Jim Holbach :o