Pre ignition, "pinking" or "pinging"
08-12-2007, 02:12 AM
#1
PassionFord Regular
Thread Starter
Join Date: Jun 2006
Location: Alberta Canada
Posts: 464
Likes: 0
Received 0 Likes
on
0 Posts
Pre ignition, "pinking" or "pinging"
I've been told it is very hard to hear any of the above on a Cossie so does it sound different from any other car or what. I have a noise that sounds like a loose pulley that only happens when you start to put your clog down but will not do it standing still revving it up. It comes in at 2000 rpm but goes when you really start to move , start of boost. Its driving me bonkers and I'm thinking something is going to bust. Any ideas?
I have just fitted a Forge group A dump valve and suspect that, but cannot trace the noise when driving.
I have just fitted a Forge group A dump valve and suspect that, but cannot trace the noise when driving.
08-12-2007, 12:59 PM
#3
It needs looking at but does not sound like pinking anyway.
The ignition is retarded when on boost, (as fuel burns faster under higher pressure).
I would suggest also a rolling road set up.
On a cossie you certainly can hear "DET" or pinking as easily as any other car, as a proper det it will sound like a crackle if using a earphone etc.
What chip are you using ?
tabetha
The ignition is retarded when on boost, (as fuel burns faster under higher pressure).
I would suggest also a rolling road set up.
On a cossie you certainly can hear "DET" or pinking as easily as any other car, as a proper det it will sound like a crackle if using a earphone etc.
What chip are you using ?
tabetha
08-12-2007, 02:38 PM
#4
PassionFord Regular
Thread Starter
Join Date: Jun 2006
Location: Alberta Canada
Posts: 464
Likes: 0
Received 0 Likes
on
0 Posts
I'm using a NMS stage 3 chip. Getting it on a rolling road is easier said than done here as we have mainly dog sleds and ski doo's ! And a four wheel drive rolling road is as plentiful as "hens teeth"
09-12-2007, 07:11 AM
#5
Get yourself a bit of copper pipe(15mm) flatten one end leaving the other end round.
Next drill a hole in the flattend end of 10mm diametre, attach a length of flexible pipe to it at the round end long enough to reach in the car when driving it.
Atttach unattached end of flexible pipe to an old set of headphones so you hear any noise in the pipe.
Now connect the copper pipe end of this arrangement to the engine by way of one of the inlet manifold studs.
Next just drive and listen, what you are listening for is a crackling sound, you will get to hear what the insides sound like.
The above makes a "DET" detector without the expense, a lot of people do not like the electronic ones and don't get on with them, they often do something similar to above!!
tabetha
Next drill a hole in the flattend end of 10mm diametre, attach a length of flexible pipe to it at the round end long enough to reach in the car when driving it.
Atttach unattached end of flexible pipe to an old set of headphones so you hear any noise in the pipe.
Now connect the copper pipe end of this arrangement to the engine by way of one of the inlet manifold studs.
Next just drive and listen, what you are listening for is a crackling sound, you will get to hear what the insides sound like.
The above makes a "DET" detector without the expense, a lot of people do not like the electronic ones and don't get on with them, they often do something similar to above!!
tabetha
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
