BobbyBreeze Posted August 13, 2020 Share Posted August 13, 2020 Yeah that looks quite bad. Definitely shouldn't have been let out the door imo. Might be okay but I personally probably wouldn't run it. 2 1 Quote Link to comment Share on other sites More sharing options...
ajg193 Posted August 14, 2020 Share Posted August 14, 2020 Had a yarn with the grinder while getting some pistons, he reckons the rough surface is intentional on their cams. Quote Link to comment Share on other sites More sharing options...
igor Posted August 14, 2020 Share Posted August 14, 2020 Did he say why? Quote Link to comment Share on other sites More sharing options...
ajg193 Posted August 14, 2020 Share Posted August 14, 2020 A balance between being too rough and too fine, he says if the wheel is dressed to give a perfect finish it burns the surfaces and causes micro cracks. Says it will all smooth out perfectly when run in with some moly grease applied to lobes and lifter faces 1 Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted August 15, 2020 Share Posted August 15, 2020 Did you have your lifters faced too? Which shop did you use? Quote Link to comment Share on other sites More sharing options...
ajg193 Posted August 15, 2020 Share Posted August 15, 2020 Yep, Kennelly Cams Quote Link to comment Share on other sites More sharing options...
Carsnz123 Posted August 15, 2020 Share Posted August 15, 2020 1 hour ago, ajg193 said: Yep, Kennelly Cams Have had quite a bit of work done by him. Never had one of his cams fail. Good engine assembly lube and good oil when breaking it in and you’ll be fine. 1 Quote Link to comment Share on other sites More sharing options...
ajg193 Posted August 15, 2020 Share Posted August 15, 2020 Coating the cam lobes and lifters in moly grease on their advice. Will do assembly lube on all other surfaces Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted August 15, 2020 Share Posted August 15, 2020 Run a high zinc oil too. I've heard many good things about kennelly. I'll use him next time. I'll never use kelfords again. 1 Quote Link to comment Share on other sites More sharing options...
ajg193 Posted August 15, 2020 Share Posted August 15, 2020 I have a big bottle of penrite running in oil What was wrong with Kelfords? Quote Link to comment Share on other sites More sharing options...
BobbyBreeze Posted August 15, 2020 Share Posted August 15, 2020 On 14/08/2020 at 16:34, ajg193 said: A balance between being too rough and too fine, he says if the wheel is dressed to give a perfect finish it burns the surfaces and causes micro cracks. Says it will all smooth out perfectly when run in with some moly grease applied to lobes and lifter faces Well I guess I respectfully disagree there. Good to know what their take on it is though... 1 Quote Link to comment Share on other sites More sharing options...
tortron Posted August 15, 2020 Share Posted August 15, 2020 Must have worked on the blmc production line back in the day? Quote Link to comment Share on other sites More sharing options...
BobbyBreeze Posted August 15, 2020 Share Posted August 15, 2020 3 minutes ago, tortron said: Must have worked on the blmc production line back in the day? Ford kent BMC have fancy steel cams! 1 Quote Link to comment Share on other sites More sharing options...
RUNAMUCK Posted August 15, 2020 Share Posted August 15, 2020 2 hours ago, ajg193 said: I have a big bottle of penrite running in oil What was wrong with Kelfords? Everytime I've dealt with them they rub me up the wrong way. Their customer service is rubbish. Quote Link to comment Share on other sites More sharing options...
SOHC Posted August 16, 2020 Share Posted August 16, 2020 Why do new cambelts make a chirping sound? Book sed to tighten it after the 1st 1000 kms and no it’s doing it agearn Quote Link to comment Share on other sites More sharing options...
Yowzer Posted August 16, 2020 Share Posted August 16, 2020 Coz pinging gillies 4 3 Quote Link to comment Share on other sites More sharing options...
kyteler Posted August 17, 2020 Share Posted August 17, 2020 The square edges of the belt trap air in the pulley as the belt spins around it, as the belt wears the edges off the air can escape easier and doesn't make as much noise. 1 Quote Link to comment Share on other sites More sharing options...
ajg193 Posted August 20, 2020 Share Posted August 20, 2020 @BobbyBreeze any idea what sort of vacuum I should be getting at idle with a pretty mild cam? The fresh engine is sitting at about 65 kPa absolute at idle (10 " mercury pulled), with stock cam I was at about 35 kPa (19 " mercury pulled) Quote Link to comment Share on other sites More sharing options...
ajg193 Posted August 20, 2020 Share Posted August 20, 2020 Here's the cam spec sheet Quote Link to comment Share on other sites More sharing options...
BobbyBreeze Posted August 22, 2020 Share Posted August 22, 2020 On 21/08/2020 at 11:23, ajg193 said: @BobbyBreeze any idea what sort of vacuum I should be getting at idle with a pretty mild cam? The fresh engine is sitting at about 65 kPa absolute at idle (10 " mercury pulled), with stock cam I was at about 35 kPa (19 " mercury pulled) I'd say around 16-17" Hg with a mild cam. Generally stock nanna engines are ~20" Hg, Hot street engines 13-14" and full race 10". Any chance you have an intake leak anywhere? Quote Link to comment Share on other sites More sharing options...
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