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Category: Maintenance

N20 engine problems right after motorplan.

So I didnt think I would have to do a write up about the petrol F – series engines. My usual comments over the years to clients with the petrol E-series generation was “service every..

Posted in Maintenance, Technical | Posted on September 7, 2018 by Tune-Tech

Maintaining an M – Bearings: It’s a Hydrodynamic Principal

The crankshaft is never in direct contact with the bearing, there is always a film of oil in between. Therefore it’s not about finding a better quality bearing. Besides, there is no “better quality bearing”,..

Posted in Maintaining an M Car, Maintenance | Posted on July 27, 2016 by Tune-Tech
Tagged M Car

The 335 / 135 N54 Turbo Wastegate Bush

With these cars I can’t just do one write up and done; have to do it in stages. You will probably see the engine light or have power issues throughout your time with this car..

Posted in Maintenance | Posted on June 24, 2016 by Tune-Tech

BMW Plastics

Plastics have heat cycles and stress cycles. You have to keep records of these items and have them replaced if needed before they fail on you. Preventative Maintenance Alternator Belt In the older days a..

Posted in Maintenance | Posted on September 29, 2015 by Tune-Tech

The 135 & 335 N54

Quick Note on the “Alternator belt system” When the alternator belt snaps it cuts the crank seal and goes into the sump. This blocks up the oil feed pipe and can result in you running a..

Posted in Maintenance | Posted on August 14, 2015 by Tune-Tech

Valve Stem Seals in Place

Problem: Light puffs of smoke from exhaust on idle and pull off – smoke increases. Major internal oil consumption – +/- pint per 1000KM We have the tool to do Valve Stem Seals in place...

Posted in Maintenance, Technical | Posted on May 19, 2015 by Tune-Tech

Maintaining an ‘M’ Car

“It is really distressing that life has so many up and downs. I would dream of a life that goes up always. But real life is different.” I started with that as it truly sums..

Posted in Maintaining an M Car, Maintenance | Posted on March 17, 2015 by Tune-Tech
Tagged M Car

Automatic Transmission

Cars: E46 & E39 X3 and X5 E60 – 5series E65 – 7series E87 – 1series E90 – 3series According to the manufacturer the oil in these gearboxes are a lifetime oil. When I get..

Posted in Maintenance | Posted on March 27, 2012 by Tune-Tech
Tagged E39, e46, E60 5series, E65 7series, E87 1series, E90 3series, X3, X5

Vibration Damper or Crankshaft Damper

Every time a cylinder fires up the crank rotates; causing all sorts of very technical vibrations which I won’t get into here. The simple solution to this magnitude of force is mounting a big rubber..

Posted in Maintenance, Technical | Posted on March 20, 2012 by Tune-Tech
Tagged Crankshaft Damper, E46 320d, E46 330d, E90 320d, E90 330d, Mini, Vibration Damper, X5 3lt diesel

N42 Timing Chains (318i E46 and 318ti – facelift engines)

The weak point falls on the Timing Chain Tensioner and after a bit of wear & tear they stop working. This part has been modified and redesigned by Be-Em.

Posted in Maintenance | Posted on February 6, 2012 by Tune-Tech
Tagged 318i, 318ti, e46, n42, timing chains

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