Porsche 718 Forum banner
1 - 19 of 19 Posts

· Registered
Joined
·
578 Posts
Discussion Starter · #1 ·
Lately, I'm noticing some light valve train noise with a cold start.
After a couple of KMs it goes away.

Its the sound you get with a lot of cars at first startup before the oil fills the galleries.
But, its not really noticeable on first startup and at idle.
I drive off as soon as cold start cycle is complete and that's when its apparent.


The car is a CPO that only had 2.5K KMs on it. It now has about 4K on it.
Dealer did an oil change when I got it; Mobil1 0W-40
Level is good.

When I first got the car, I did not have this noise at all.
I'm just wondering if anyone else experienced this as well.
 

· Registered
Joined
·
1,213 Posts
Not exactly the same, but I have a base with 1,500 miles that has a slight, but noticeable "tick" that is present at any temperature and increases in frequency per rpm. I think the sound is relatively recent, although I may just be hearing the car better now. There are no other base cars in my area to compare and the nearest dealer is 1.5 hours, so I have not yet gotten any trained ears to listen. I'm not sure how much valve train noise is normal and suggest you visit a dealer to get their input.
 

· Registered
Joined
·
578 Posts
Discussion Starter · #6 · (Edited)
Just in case other noobs like myself
are reading this issue;

This thread covers it pretty well.
 

· Premium Member
2019 base Cayman
Joined
·
2,224 Posts
Personally, I think it is confirmation you have a dry sump engine, just like all the cool race cars! It sounds a little embarrassing until you understand the benefits of a dry sump. I think the Soundaktor masks the initial rattle and so I hear it now more than I did originally.
 
  • Like
Reactions: InTgr8r

· Registered
Joined
·
2,592 Posts
My base Cayman has noticeable valve noise when cold, especially bewteen maybe 2500 and 3000 rpm. I asked the dealer about it and the service manager said "Well, it is a flat four engine." It seems to be normal. Yeah, it can sound like a car with poorly adjusted valves. It still goes like a demon.
 

· Registered
Joined
·
1,213 Posts
Completely normal... other threads have covered this ... I get in on my 2018 GTS.... and have researched “ The ticking noise “ ... I use Shell v power 99 octane... enjoy your porsche ?
Then the flat 4 would be the second noisiest engine in a car I've owned. The first would be the Euro Ford 4 banger that was in my Pinto circa late-70s.
 

· Premium Member
2019 base Cayman
Joined
·
2,224 Posts
I don't remember the Pinto being a racecar too low to the ground to require a dry-sump engine. That would be my story and I'm sticking to it!
 

· Premium Member
Joined
·
1,891 Posts
I challenge anybody to listen to a modern sport-oriented ICE car, upon cold startup and with the hood/bonnet raised, and not hear at least a little valvetrain noise.
I made several points in the thread the OP refers to in Post #6 regarding our cars and mechanical engine noise, including valvetrain. Please read that post here.
Maybe I'm feeling crotchety today, but I'm gonna say this anyway: If anyone expects the engine in our cars to have the in-cabin tenor of, say, a Lexus LS, you really don't understand passenger vehicles well.

Different strokes for different folks, as it were. (Yes: pun totally intended.)
 

· Registered
Joined
·
2,592 Posts
I challenge anybody to listen to a modern sport-oriented ICE car, upon cold startup and with the hood/bonnet raised, and not hear at least a little valvetrain noise.
I tried that on my Cayman. Couldn't figure out how to open the hood/bonnet. :LOL:

Different strokes for different folks, as it were. (Yes: pun totally intended.)
As long as it doesn't become a bore...
 

· Registered
Joined
·
74 Posts
Lately, I'm noticing some light valve train noise with a cold start.
After a couple of KMs it goes away.

Its the sound you get with a lot of cars at first startup before the oil fills the galleries.
But, its not really noticeable on first startup and at idle.
I drive off as soon as cold start cycle is complete and that's when its apparent.


The car is a CPO that only had 2.5K KMs on it. It now has about 4K on it.
Dealer did an oil change when I got it; Mobil1 0W-40
Level is good.

When I first got the car, I did not have this noise at all.
I'm just wondering if anyone else experienced this as well.
When my 2017 718S is cold I get the same clicking noises for the first few minutes. It is unlikely that it is valve noise. I suspect it is the injectors. It is nothing to worry about but should and can be avoided.

Porsche does NOT recommend letting your car warm up. They say get in an drive it right away. And this on google:

Auto experts today say that you should warm up the car no more than 30 seconds before you start driving in winter. "The engine will warm up faster being driven," the EPA and DOE explain. Indeed, it is better to turn your engine off and start it again than to leave it idling.

You are probably letting your car warm up too long and during that idling time the injectors don't get a chance to do the expansion/contraction/lubrication dance that ordinarily happens rapidly when you drive off. An easy experiment would be, on your next two morning starts, on the first one, let your car idle for two minutes and see if the clicking continues the whole time. Then, the next start, get in, start up and drive off right away. After two minutes pull over and listen for the clicking. I am betting you won't hear any. By the way, Porsche says NOT to rev your car beyond 3K RPM until temperatures have climbed to normal.

Make sense? I am NOT a mechanic. So take what I say here with that in mind. Everything I say here is from reading someone's opinion.
 

· Registered
Joined
·
2,592 Posts
Interesting comments to revive a dormant thread.

I often hear a rapid fluttering-like clicking even when I'm driving. In any other car I would say it sounds like valve noise. At first I worried about it. So I asked my service department while admitting to them I didn't know what kind of valve mechanism it had. The service manager said it would be injector noise, that the valves couldn't do that anyway.
 
1 - 19 of 19 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top