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ESS recommends a fresh fuel filter (which more critically includes the fuel pressure regulator that NEEDS to be working right) and a new or good running fuel pump. I also suggest getting a fresh o-ring for your oil dipstick in case you need to re-seat it. Pre-cat O2 sensors have about a 100k mile service life, and the DME will use those to keep your car running a healthy fuel mixture. I recommend picking up a fresh set of studs and nuts for the intake manifold in case some break. So while you're in there, based on my experience with my car that has 100k miles on it, there are a couple OEM parts you may want to either have on hand or replace. I believe that if your car has any weak components in the system to start with, a supercharger installation will magnify those. If you have any troubles with the kit what-so-ever, knowing you do or don't have a vacuum or boost leak is invaluable to know before you start throwing new parts at the car. Hook it to your new ESS manifold and you can confirm proper vacuum levels at idle, and boost levels at WOT. Mityvac vacuum/boost tester - This little tool is very handy in a number of ways. Renovelo Bytelogger - Having a datalogging tool is very important to confirm fuel trims, ignition timing, and if you have a MS45.1 car you can even read your Air Fuel Ratio (AFR) and confirm you're running strong and reliably. Regardless if things go perfectly for you or not I suggest investing in a couple things that can help verify a healthy operating kit once you've completed your installation. Then I found out I had the wrong intake boot, which ESS quickly shipped the correct part overnight. Some of my bigger issues involved snapping a stud on the head when tightening down the new ESS manifold to 22ft-lbs, resulting in the need to remove the manifold which ripped the gasket, so I needed to make another gasket, and then removing and ordering a replacement stud from BMW.
Bmw torque specs e46 intake manifold install#
I thought the install would take about 12-14 hours, but I ran into some challenges along the way and it took me closer to 16-18 hours. Anyway, I always knew I would tackle the TS2 install myself, and along the way I took notes on things that you could say might be a good supplement the instructions that ESS provides.
Bmw torque specs e46 intake manifold professional#
So I feel somewhat experienced, but by no means a professional at all. I've done a lot of things at one point or another, probably everything except transmission work. Head tightening procedure and torque specs:ġ0.0 kg/cm 2 (9.I'm a DIY kind of guy, and have maybe moderate experience wrenching on cars. Valve clearance is set by self-adjusting (zero-lash) hydraulic lifters for reduced valve noise and the elimination of routine valve adjustment. They have a duration of 228° for inlet and 244° for exhaust valves, valve lift is 9.0 mm (0.3543 in) for both intake and exhaust valves. Intake valves are 33.0 mm (1.2992 in) in diameter and exhaust valves are 30.5 mm (1.2008 in). VANOS is fully variable and operates independently on both intake and exhaust sides. This engine is equipped with dual VANOS (Variable Camshaft Timing) system. Intake air enters the combustion chamber from one side while exhaust gasses exit from the other. The cylinder head employs a crossflow design for greater power and efficiency. Standart head height is 140.0 mm (5.5118 in). The M54B25 engine uses chain-driven double overhead camshafts and four valves per cylinder. The cylinder head is made of an aluminum alloy with good cooling efficiency. Number of piston rings (compression / oil): Full-floating piston pins are retained with circlips. The pistons are of the three-ring type with two upper compression rings and a lower one-piece oil scraper ring. The forged steel connecting rods use replaceable split-shell bearings at the crankshaft end and solid bushings at the piston pin end. The cast-iron counterweighted crankshaft rotates in replaceable split-shell main bearings. The cylinders are exposed on all sides to circulating coolant. The M54B25 engine used cast aluminum alloy cylinder block with cast-iron cylinder liners, bore is 84.0 mm (3.31 in) and the piston stroke is 75.0 mm (2.95 in).