maintenance schedule 911 86

[alexandervdr]

I have the comprehensive maintenance schedule of the 86. However, there is no overview for what to do on a time/mile-laps line, it's based on 'do this and that every so and so miles'. I need a reordering of the service interventions along the accumulation of kilometres or miles. What I mean is NOT 'every 15.000 miles' but "at 15.000 miles do ...." at "30.000miles do this and that..." at "72.000miles do this and that..." at "120.000 miles do this and that..."
Anyone has written that up? Or is it available somewhere?

[chrisbruck]

Unless your car is daily driven at "normal" yearly mileage levels, you may be better off tracking the date of the intervals and start with a full baselining and go from there.

For example, I don't drive mine that often and maybe 5000 miles a year so I do a yearly oil change, brake fluid change, and transmission fluid every other year. Basically I don't follow the more common mileage intervals.

Now I do track miles for more of the mechanical stuff... valve adjustment, brake pads, tire rotations, etc...

To me these cars are old enough that standard mileage intervals don't really apply as much and more is based on actual usage.

[GH85Carrera]

Unless you drive it a LOT, maintenance based on mileage alone is not a great idea.

Thing like tires need to be replaced in 5 or 6 years even if you drive very little. Things like brake pads are just a visual inspection, and go. Brake pads don't get old in normal time frames of a dozen years in normal climates. Pad depth and rotor wear are all that matters.

For the last 26 years I change my brake fluid every single spring and mileage is irrelevant. I change my engine oil once per year and again 5K to 6K is about all I put on it in 12 months. The transmission oil is based on how I have been driving. Lots of highway miles and I will go two years. A few track days and I will change it regardless of miles.

I have always been of the mid set, keep on top of maintenance and at worst I waste some oil and my time. Mechanical parts are replaced "while I am in there" for some items like clutch parts or had to get to seals.

I just keep the car in perfect condition and I would never hesitate to jump in and go for a 5,000 mile two week trip. BTDT many times. I have driven it to 41 states and Canada so far, and looking to hit all the lower 48 states in my 911.

[alexandervdr]

Originally Posted by GH85Carrera

Unless you drive it a LOT, maintenance based on mileage alone is not a great idea.

Thing like tires need to be replaced in 5 or 6 years even if you drive very little. Things like brake pads are just a visual inspection, and go. Brake pads don't get old in normal time frames of a dozen years in normal climates. Pad depth and rotor wear are all that matters.

For the last 26 years I change my brake fluid every single spring and mileage is irrelevant. I change my engine oil once per year and again 5K to 6K is about all I put on it in 12 months. The transmission oil is based on how I have been driving. Lots of highway miles and I will go two years. A few track days and I will change it regardless of miles.

I have always been of the mid set, keep on top of maintenance and at worst I waste some oil and my time. Mechanical parts are replaced "while I am in there" for some items like clutch parts or had to get to seals.

I just keep the car in perfect condition and I would never hesitate to jump in and go for a 5,000 mile two week trip. BTDT many times. I have driven it to 41 states and Canada so far, and looking to hit all the lower 48 states in my 911.

very good points. Still, it may be worth replacing that fuel pump and filter in time rather than get stuck because they gave up along that 2000mile trip (like I just did crossing Norway, splendid experience and nothing broke). The 'while I am at it' approach usually leads me to replace about everything, with resulting project and money creep, so I am trying to find some better logic

[GH85Carrera]

Oh yea, I replaced my perfectly working fuel pump with a new Bosch pump at 150,000 miles or so just before we went on a 6,000 mile road trip to 12 national parks and all the way to California and up and down H1.

I have replaced my DME relay with the solid state version. I replace my fuel filter every five to six thousand miles as I get gas on the road and I try for good stations I have to just hope the station is a good fuel source.

I dug around on the used market and found a spare BOSCH black coil like the OEM version because the silver coil is pretty much garbage and no one makes a coil that is proper drop in coil for the DME 3.2 injection system.

I have had my DME itself inspected, some parts replaced, and solder joints reflowed by Steve Wong.

I rebuilt and replaced all the rubber bushings in the entire suspension. New turbo tie rods made a big improvement along with new shocks and ball joints.

I am with you on maintenance done before a breakdown or problem, but I am weird in that I drive my 911 on long road trips to far away places. Key West Florida or Acadia national park in Maine is a long way from my house and I drive a 36 year old used car, 2,000 miles to Acadia national park from home.



That is part of the park just 35 miles from the furthest east point in the USA.