Audi S4 B9 2018 56k mi ticking from the engine
06-27-2024, 12:13 AM
#1
AudiWorld Newcomer
Thread Starter
Join Date: Jun 2023
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Audi S4 B9 2018 56k mi ticking from the engine
This video was made just after the engine finished start up from cold.
Do you think this is something to worry about?
Any tell tale signs of rocker arm failure?
I don't have a borescope to check myself yet, but considering it.
(x-post from here: https://www.audi-sport.net/xf/threads/446268/)
Today, 07:05 AM
#2
AudiWorld Senior Member
By no means should you rely on my opinion as fact - but the ticking noise sounds to "fast" for the given rpm of your engine. It's been a year since my S5 engine crapped out but I kind of remember the ticking to be both louder and slower - ie: less ticks per revolution of the engine. What that sounds like to me is ticking from the camshaft hitting the plunger of the high pressure fuel pump.
If you can, pull the camshaft position sensors on each bank. They use magnets to detect when the camshaft rotates by. The magnets will tend to pick up any metallic wear from the camshaft and or bearings. If they are coated in a grey metallic oil, you have a problem.
If you can, pull the camshaft position sensors on each bank. They use magnets to detect when the camshaft rotates by. The magnets will tend to pick up any metallic wear from the camshaft and or bearings. If they are coated in a grey metallic oil, you have a problem.
Thread
Thread Starter
Forum
Replies
Last Post