Pay more attention as you get close to zero gaps to make sure that the caps at A3 and A5 bottom out at same time. Even though there is lube on the lifter faces, I will usually smear some assembly lube on the cam lobes as well. In 2002 and 2003, the M54 topped the. It should also be noted that modern pump fuel can last as little as 40days, under poor circumstances, before all the volatiles evaporate off. When a loss of circulation or a coolant loss occurs it often does not show up on the temperature gauge, as the thermister is often mounted in an unfavourable position, where once a small coolant loss occurs it is no longer surrounded by the coolant and therefore does not indicate the correct coolant temperature. Ask the machine shop which one to use.
Back story I have owned this car since new. Compression pressure in the cooling system is a classic sign of a blown head gasket. By leaving the cap in place, it gives you an easy visual verification of whether the end of the cam is rising equally to the caps at E4 and E6. Corrosion around the water passages of either cylinder head or block can allow water to enter the combustion chamber just to be consumed and exit out the exhaust. Lubricate the connecting rod bearing shells.
Removing the coolant expansion tank cap should increase the discharge rate but this may cause more splashing. Does look like it could have been catastrophic if it hadn't been addressed sooner. Insert a large bolster chiesel into the seam and gently break away any remaining spot weld. I would imagine most of this guide can be followed for an M52. . Free the solenoid from it's mount by sliding out the rubber insulator and remove the wiring connector.
It's 100% safe to remove the other caps. The engine is based on the M54. Install them at E2 and E7, do not use the studs at cap E1. Also good sites for parts and such other sites listed on following pages. The original Bosh were too hot. This is easier if the front is done first, and they are disconnected from the rest of the system. The M54B30 was on the list through 2001-2003.
Watch the gaps between the caps and the head as you proceed. What is not shown on the temperature gauge is that the water in the cylinder head is boiling, as it is not being cooled by the water flowing through the radiator only. I experienced leaning of the air fuel ratios when on the dyno. Another cause of a blown head gasket is excessive ignition timing. Remove the bolt on the left side horn bracket and remove the lower alternator air duct.
And you'll need to remove the oil filler cap too replace it after cover removal. Some of the bolts are likely to break off if not already from their bonding to the rubber insulator 11. This is the best position to control the movement of the camshaft as the journal caps are loosened. Read this entire procedure thoroughly before you begin to familiarize yourself with the process. The famed e12 socket to remove the head bolts. Do not rotate more than the approximately 40 degrees shown.
Disconnect the 2 banjo bolts securing the hydraulic pipes to the steering rack. What is being shown on the temperature gauge, the water is circulating through the radiator only, via the bypass passage, which is no longer closed because of the removal of the thermostat on certain engines. Adjust micrometer to cylinder bore of engine block mirror bore gauge on micrometer to zero. The piston pin must be pushed through the bushing tap of a finger, and have no visible gap with it. This does not hurt anything, but if it does rise with the cam, it will make some of the procedure difficult. Low octane a bad tank of fuel is often a danger especially in a vehicle without a closed loop oxygen sensor.
No e46 M intake in the mix. The reason we finger tighten the cap at A1, instead of just setting the cap in place and watching it, is to make sure that the cam does not bind up on the thrust flanges as it enters the bearing. A water pressure gauge can be a useful add on. Remove the 2 bolts either side securing the front panel to the inner wings. And pull the hose off. Disconnect the slam panel alarm switch.