Search found 159 matches

by BMW_Fan2020
Mon Sep 15, 2025 8:29 am
Forum: General Car Discussions
Topic: The BMW N42 fails to start subsequent to the replacement of the valve seals.
Replies: 11
Views: 297

Re: The BMW N42 fails to start subsequent to the replacement of the valve seals.

Ultimately, it started with arid cylinders. I added two teaspoons of oil to the cylinders, resulting in a tripling of the compression. Three weeks of conflict, believing the task was inadequately executed, ultimately revealed it to be an unrelated problem to the repair. Gratitude to all
by BMW_Fan2020
Mon Sep 15, 2025 8:28 am
Forum: General Car Discussions
Topic: The BMW N42 fails to start subsequent to the replacement of the valve seals.
Replies: 11
Views: 297

Re: The BMW N42 fails to start subsequent to the replacement of the valve seals.

Upon examining the matter, I believe the most probable culprit at startup may be the valve lifts. I removed them during the task, and they remained in a horizontal position for a day and a half with the drain hole facing upwards. Some may have leaked, resulting in a loss of fluid, allowing air to en...
by BMW_Fan2020
Mon Sep 15, 2025 8:26 am
Forum: General Car Discussions
Topic: The BMW N42 fails to start subsequent to the replacement of the valve seals.
Replies: 11
Views: 297

Re: The BMW N42 fails to start subsequent to the replacement of the valve seals.

Indeed, with the curved section oriented upwards—there was an instance when it was positioned downwards—the timing is optimal, and the tools fit seamlessly without exertion, resulting in a tiny deflection of the exhaust shaft. It is evident that either the cylinder head is warped, which appears impl...
by BMW_Fan2020
Mon Sep 15, 2025 8:25 am
Forum: General Car Discussions
Topic: The BMW N42 fails to start subsequent to the replacement of the valve seals.
Replies: 11
Views: 297

Re: The BMW N42 fails to start subsequent to the replacement of the valve seals.

Executing this procedure without elevating the cylinder head by threading a string through the spark plug aperture obscures the view of the valve seat. It is peculiar that several others have used this method without encountering issues, nevertheless all of my valves are inadequately seated.
by BMW_Fan2020
Mon Sep 15, 2025 8:25 am
Forum: General Car Discussions
Topic: The BMW N42 fails to start subsequent to the replacement of the valve seals.
Replies: 11
Views: 297

Re: The BMW N42 fails to start subsequent to the replacement of the valve seals.

Negative. This tool will not distort a cylinder head.

Have you verified your valve clearance?
by BMW_Fan2020
Mon Sep 15, 2025 8:25 am
Forum: General Car Discussions
Topic: The BMW N42 fails to start subsequent to the replacement of the valve seals.
Replies: 11
Views: 297

Re: The BMW N42 fails to start subsequent to the replacement of the valve seals.

Do you believe it is feasible to distort the cylinder head using the valve spring compressor tool?
by BMW_Fan2020
Mon Sep 15, 2025 8:24 am
Forum: General Car Discussions
Topic: The BMW N42 fails to start subsequent to the replacement of the valve seals.
Replies: 11
Views: 297

The BMW N42 fails to start subsequent to the replacement of the valve seals.

I replaced the seals without detaching the cylinder head, using the rope technique and a universal lever tool. The vehicle fails to start; it attempts to engage but does not succeed. A spark is there, accompanied by the odor of gasoline, and the timing is appropriate as all tools are compatible. The...
by BMW_Fan2020
Fri Sep 05, 2025 2:08 pm
Forum: General Car Discussions
Topic: Essential reader guidance for a 2013 E82 1 Series 118d.
Replies: 7
Views: 402

Re: Essential reader guidance for a 2013 E82 1 Series 118d.

Does this imply that you have reached a conclusion, given that you have made another post today?
by BMW_Fan2020
Thu Aug 28, 2025 1:44 pm
Forum: General Car Discussions
Topic: E60 M47 power loss at 2500 RPM
Replies: 6
Views: 1098

Re: E60 M47 power loss at 2500 RPM

Are there any error codes?