Bomber Carnage on the Garage Floor Donating Members 3,994 Member For: 13y 11m 7d Gender: Male Location: Gold Coast Posted 09/06/14 12:48 AM Share Posted 09/06/14 12:48 AM As some may of seen on my build thread, I had my valve springs replaced last week to prepare for further upgrades. As part of that job we discovered some lobes, particularly on the inlet cam, were worn to a point the hard casing was looking ordinary.The car has had new oil every 5k (Nulon 10w40). Has clocked 47k and has had 300rwkw for 40k. The guys are of the view that float was the most likely culprit although the car never had a fluffy idle or displayed any symptoms on the dyno. Only thing was an intermittent, occasional ping on gear change which I put down to fuel variations.Luckily, my tuner had a set of low klm FG F6 cams so we installed them. I've since found out that a few shops are finding this. I'm of the view those running 300rwkw should seriously consider springs. The car feels stronger as a result and I could have potentially saved my poor old cams :(I do have pics but can't load them at the moment (4.2kb max file?) Link to comment Share on other sites More sharing options...
Bizkets is Drunk? Too heavy needs boost Member 5,929 Member For: 10y 8m 12d Gender: Male Location: Adelaide Posted 09/06/14 01:10 AM Share Posted 09/06/14 01:10 AM mine had wear on the lobes and one roller had a grove worn into it. that was stock with I think 60000k on the clock. 1 Link to comment Share on other sites More sharing options...
willo88 Member 700 Member For: 12y 2m 24d Gender: Male Location: Newcastle Posted 09/06/14 01:22 AM Share Posted 09/06/14 01:22 AM I've had 400+ for the last couple of months and 300 for over a year before that....stock springs. I'm scared to see inside when the springs get done in a few weeks. How much do a set of standard cams go for? Link to comment Share on other sites More sharing options...
F18XRT Member 77 Member For: 12y 2m 11d Posted 09/06/14 01:31 AM Share Posted 09/06/14 01:31 AM Could it also be related to full synthetic oils- some claim full-syn does this.. 2 Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 16y 5m 22d Gender: Male Location: Perth Posted 09/06/14 02:00 AM Share Posted 09/06/14 02:00 AM As some may of seen on my build thread, I had my valve springs replaced last week to prepare for further upgrades. As part of that job we discovered some lobes, particularly on the inlet cam, were worn to a point the hard casing was looking ordinary.The car has had new oil every 5k (Nulon 10w40). Has clocked 47k and has had 300rwkw for 40k. The guys are of the view that float was the most likely culprit although the car never had a fluffy idle or displayed any symptoms on the dyno. Only thing was an intermittent, occasional ping on gear change which I put down to fuel variations.Luckily, my tuner had a set of low klm FG F6 cams so we installed them. I've since found out that a few shops are finding this. I'm of the view those running 300rwkw should seriously consider springs. The car feels stronger as a result and I could have potentially saved my poor old cams :(I do have pics but can't load them at the moment (4.2kb max file?) Why dont you send me the cams or cam and I will section them, look at the case layer depth and check the hardness.I would say its not valve spring related but poor manufacture.Pm me 4 Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 15y 10m 18d Gender: Male Location: Adelaide Posted 09/06/14 02:07 AM Share Posted 09/06/14 02:07 AM Could it also be related to full synthetic oils- some claim full-syn does this..THIS!! Been saying it for years now 1 Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 16y 5m 22d Gender: Male Location: Perth Posted 09/06/14 02:29 AM Share Posted 09/06/14 02:29 AM HOW. 1 Link to comment Share on other sites More sharing options...
Bomber Carnage on the Garage Floor Donating Members 3,994 Member For: 13y 11m 7d Gender: Male Location: Gold Coast Posted 09/06/14 05:26 AM Author Share Posted 09/06/14 05:26 AM ^^^ I was going to send them to TBRE arronm for him to use for a custom grind for somebody else. However, given this problem seems to be becoming more of an issue if somebody is prepared to do some R&D, I think this would be beneficial for forum members. Not sure how much a set of standard cams go for willo88. I was just very fortunate with my timing and being a good customer, it cost me nothing. 1 Link to comment Share on other sites More sharing options...
Bomber Carnage on the Garage Floor Donating Members 3,994 Member For: 13y 11m 7d Gender: Male Location: Gold Coast Posted 09/06/14 05:41 AM Author Share Posted 09/06/14 05:41 AM ^^ pic is on AFF under 'valve springs' for those keen to see what it looked like. 1 Link to comment Share on other sites More sharing options...
arronm Dropping a turd Gold Donating Members 9,520 Member For: 16y 5m 22d Gender: Male Location: Perth Posted 09/06/14 05:54 AM Share Posted 09/06/14 05:54 AM This is my FG cams. 10000ks, fully syntheticLook close you can still see the manufacturing polishing marks.Absolutely NO wear 2 Link to comment Share on other sites More sharing options...
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