Fordmods Logo

Advanced cam timing=pinging? 

 

Page 1 of 1 [ 15 posts ] 

 
 Post subject: Advanced cam timing=pinging?
Posted: Fri Dec 19, 2008 3:35 pm 
Getting Side Ways
Offline

Age: 108

Posts: 927

Joined: 27th Sep 2007

Location: Adelaide
SA, Australia

My ef has a vernier gear and runs 4 degrees advanced, would this contribute to my pinging problem?
Also car has au head and gasket and is always run on 98 fuel, does the au head and gasket combo bring up the comp much?
I also put 1 range colder spark plugs in and it did nothing to help the pinging.
If my knock sensor is rooted will it cause the motor to ping?
I run the cam timing advanced to compensate for the 250 000km donk :lol:
Theres a few questions there but hopefully someone can help, cheers.

 

_________________

165 Killer Wasps all packaged in a green kmart car, almost an explorer in a way...

Top
 Profile  
 
 
Posted: Fri Dec 19, 2008 7:57 pm 
Getting Side Ways
Offline

Age: 108

Posts: 927

Joined: 27th Sep 2007

Location: Adelaide
SA, Australia

Sorry to keep asking the same questions, but they will get asked until i get answers that help me find a solution.

 

_________________

165 Killer Wasps all packaged in a green kmart car, almost an explorer in a way...

Top
 Profile  
 
 
Posted: Fri Dec 19, 2008 8:33 pm 
Getting Side Ways
Offline

Age: 35

Posts: 1353

Joined: 15th Mar 2007

Gallery: 7 images

Ride: AU XR6

Power: 171 rwkw

Location: thornton
NSW, Australia

Why would you run the cam advanced just cause it's got 250kms on it? That's what the tensioners for. Pinging is caused by ignition timing being to far advanced, and yes the knock sensor is there to retard the timing when it picks up detonation. If your sensor isn't working it won't cut the timing hence the detonation. Under what conditions is it detonating? Your answer will helpto diagnose further.

Hope that helped.

 

_________________

9/98 AU1 XR6hp-about to retire from the road and be reborn on the race track.
86 ZL mint grandpa spec with premo sound and 150000km
07 TTG 60000km stock as, mods to come.
97 el futura about to be MOCKed

Top
 Profile  
 
 
Posted: Mon Dec 22, 2008 12:23 am 
Getting Side Ways
Offline

Age: 108

Posts: 927

Joined: 27th Sep 2007

Location: Adelaide
SA, Australia

I advanced the cam timing because it gives the car more bottom end,which this car is lacking even with an xr diff.
It pings under light acceleration but doesnt seem to ping all the way to redline.
Its almost like when you accelerate it takes a while for the ecu to work out the timing so it pings for a bit until it works itself out then its ok.
I struggle to find this prob because if its not the knock sensor, or the boost in comp from the au head and gasket, im lost as to what it may be because i feel i have most of the bases covered.

 

_________________

165 Killer Wasps all packaged in a green kmart car, almost an explorer in a way...

Top
 Profile  
 
 
Posted: Mon Dec 22, 2008 6:44 am 
Technical Contributor
Offline
User avatar

Age: 38

Posts: 4093

Joined: 20th Mar 2005

Gallery: 2 images

Ride: 2.0 Turbo VW

Power: 142 rwkw

Location: Seaford State:
VIC, Australia

I have the same problem.
I've changed everything possible.
Runs great on cold mornings, but one the temps around 25+deg it'll ping (no matter where the temp gauge is)

Some say its the extractors, Im yet to install a stocko header and cat to see if it resolves it.

other than that, 2 years+ of annoying me, I'm leaving it alone.

 

_________________

Carefree, we may not be number one, but we're up there.

Top
 Profile  
 
 
Posted: Mon Dec 22, 2008 9:03 am 
Getting Side Ways
Offline

Age: 35

Posts: 1353

Joined: 15th Mar 2007

Gallery: 7 images

Ride: AU XR6

Power: 171 rwkw

Location: thornton
NSW, Australia

Just put it down to being one of the little ghosts that haunts the ford product

 

_________________

9/98 AU1 XR6hp-about to retire from the road and be reborn on the race track.
86 ZL mint grandpa spec with premo sound and 150000km
07 TTG 60000km stock as, mods to come.
97 el futura about to be MOCKed

Top
 Profile  
 
 
Posted: Mon Dec 22, 2008 9:06 am 
Getting Side Ways
Offline

Posts: 6449

Joined: 11th Nov 2004

green car wrote:
Sorry to keep asking the same questions, but they will get asked until i get answers that help me find a solution.



here's an idea, instead of being d**k with comments like that.

pull the rocker cover off set the gear back to 0 and see if the pinging stops.

 

_________________

PERMANENTLY BANNED

Top
 Profile  
 
 
Posted: Mon Dec 22, 2008 10:41 am 
Getting Side Ways
Offline

Age: 108

Posts: 927

Joined: 27th Sep 2007

Location: Adelaide
SA, Australia

Krytox wrote:
I have the same problem.
I've changed everything possible.
Runs great on cold mornings, but one the temps around 25+deg it'll ping (no matter where the temp gauge is)

Some say its the extractors, Im yet to install a stocko header and cat to see if it resolves it.

other than that, 2 years+ of annoying me, I'm leaving it alone.

Dont ya hate gremlins, cheers for the reply i might take your advice and forget about it before it does my head in.
Thanks for the other replies guys

 

_________________

165 Killer Wasps all packaged in a green kmart car, almost an explorer in a way...

Top
 Profile  
 
 
Posted: Thu Dec 25, 2008 10:44 am 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 1037

Joined: 5th Nov 2004

Gallery: 1 images

Ride: V8 T5 Fairmont & BA XR6T

Location: Sydney
NSW, Australia

advanced cam timing will cause pinging in certian engines, so as Tickford6 said, pull some cam timing out and you will probably see the problem easy or dissapear completely. Your on the right track by adding a bit of advance for a tired chain, albeit a bandaid fix for a stretched chain. The tensioner will pul the tension onf the chain, however look at the way it works, it retards the cam in doing so. Your knock sensor works during your closed loop end of the maps, however if Im not mistaken it is disregarded when in O/L or WOT, similar to how LAMBSE is non effective in O/L and KAMRF is used for you fuel tables

 

_________________

Dima, Mitch & Jay's RPD

Top
 Profile  
 
 
Posted: Thu Dec 25, 2008 12:33 pm 
Getting Side Ways
Offline
User avatar

Posts: 3363

Joined: 27th Dec 2004

Gallery: 4 images

Ride: MCMXCV Falcon

Location: G town
VIC, Australia

no I think the knock sensor operates at all times below 4500 rpm

 

_________________

Image

Top
 Profile  
 
 
Posted: Thu Dec 25, 2008 2:04 pm 
Getting Side Ways
Offline

Age: 108

Posts: 927

Joined: 27th Sep 2007

Location: Adelaide
SA, Australia

It still pings its a*** off at 0 degrees cam timing, so i can rule that out.

 

_________________

165 Killer Wasps all packaged in a green kmart car, almost an explorer in a way...

Top
 Profile  
 
 
Posted: Sat Dec 27, 2008 1:56 pm 
Stock as a Rock
Offline

Age: 33

Posts: 115

Joined: 28th Sep 2005

Ride: EL XR6

Location: Canberra
ACT, Australia

Was the cam gear/cam/timing done in a back yard with toys or in a propper workshop with mechanics who know what their doing with propper tools?

I think you get where Im going with this.... It all comes down to initial installation and propper set up.

 

_________________

Supercharger, extractors for sale
ford-parts-for-sale-f17/supercharger-3-exhaust-spool-rods-extractors-x2-t99480.html

More e series stuff from NF V8 fairlane for sale
post1252987.html#1252987

Top
 Profile  
 
 
Posted: Sat Dec 27, 2008 3:05 pm 
Getting Side Ways
Offline

Age: 108

Posts: 927

Joined: 27th Sep 2007

Location: Adelaide
SA, Australia

Im a mechanic, its not hard to install a vernier cam gear and its certainly not hard to adjust it either.
There is no secret to adjusting cam timing on a 4.0.
Its not the cam timing causing the pinging anyway.

 

_________________

165 Killer Wasps all packaged in a green kmart car, almost an explorer in a way...

Top
 Profile  
 
 
Posted: Sat Dec 27, 2008 3:11 pm 
Getting Side Ways
Offline

Posts: 6166

Joined: 8th May 2007

vegabass wrote:
Was the cam gear/cam/timing done in a back yard with toys or in a propper workshop with mechanics who know what their doing with propper tools?



is that supposed to be a joke?
Top
 Profile  
 
 
Posted: Sat Dec 27, 2008 9:07 pm 
Stock as a Rock
Offline

Age: 33

Posts: 115

Joined: 28th Sep 2005

Ride: EL XR6

Location: Canberra
ACT, Australia

FordFairmont wrote:
vegabass wrote:
Was the cam gear/cam/timing done in a back yard with toys or in a propper workshop with mechanics who know what their doing with propper tools?



is that supposed to be a joke?


no not a joke, I didnt know the OP was a mechanic. Also there are plenty of people who have a mate of a mate who can put a cam in but at the end of the day have no idea what their doing, hence my last comment.... it comes down to instalation and proper tuning/adjustment.

wasnt aimed at slaging anyone.
Sorry.

 

_________________

Supercharger, extractors for sale
ford-parts-for-sale-f17/supercharger-3-exhaust-spool-rods-extractors-x2-t99480.html

More e series stuff from NF V8 fairlane for sale
post1252987.html#1252987

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 15 posts ] 

Who is online

Users browsing this forum: Google [Bot] and 30 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Tue Dec 12, 2017 2:00 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names