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Running in New cam Advice https://www.ausmini.com/forums/viewtopic.php?f=2&t=70227 |
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Author: | NG [ Tue Apr 19, 2011 7:04 pm ] |
Post subject: | Running in New cam Advice |
heard a few different ways. best one so far is rev it to about 2,000 or 2,500 for round 10 to 20mins or so up & down between that range. i also bought some cam running in oil with a zinc additive . should i use normal engine oil? the engine has done about 20,000km. i was thinking best to run it in N/A before i bolt the blower on. opinions? |
Author: | simon k [ Tue Apr 19, 2011 7:26 pm ] |
Post subject: | |
what did GR say to do? have you bought new followers as per his recommendation? |
Author: | drmini in aust [ Tue Apr 19, 2011 7:30 pm ] |
Post subject: | |
Current thinking is stick it in, start motor & then go DRIVE it for 20 mins or so. Up a hill or two. Revving it in neutral for 20mins with no load is just a recipe for glazed bores and then poor ring sealing. ![]() When GR runs them in on his engine dyno, he puts part load on it for 15-20 mins. Hard to do this in yer garage.... |
Author: | NG [ Tue Apr 19, 2011 7:40 pm ] |
Post subject: | |
simon k wrote: what did GR say to do?
have you bought new followers as per his recommendation? yes isky ones. |
Author: | NG [ Tue Apr 19, 2011 7:43 pm ] |
Post subject: | |
drmini in aust wrote: Current thinking is stick it in, start motor & then go DRIVE it for 20 mins or so. Up a hill or two.
Revving it in neutral for 20mins with no load is just a recipe for glazed bores and then poor ring sealing. ![]() When GR runs them in on his engine dyno, he puts part load on it for 15-20 mins. Hard to do this in yer garage.... my engine has done 20,000km so rings bed in a long time ago. i could just put it in & go driving but what about fuel, my carby was set up for a 266 cam on the dyno. do you really need load up the car? i assumed there is no load on the cam. just the drive train pistons etc. |
Author: | drmini in aust [ Tue Apr 19, 2011 7:44 pm ] |
Post subject: | |
Jetting it has will be fine for the running in... Rejet it later if you need to. No if the rings etc are bedded in already, then 10-15 mins @2000rpm is fine. I assumed the engine was a rebuild. |
Author: | GT mowog [ Tue Apr 19, 2011 7:46 pm ] |
Post subject: | Re: Running in New cam Advice |
NG wrote: heard a few different ways.
best one so far is rev it to about 2,000 or 2,500 for round 10 to 20mins or so up & down between that range. i also bought some cam running in oil with a zinc additive . should i use normal engine oil? the engine has done about 20,000km. i was thinking best to run it in N/A before i bolt the blower on. opinions? Your Cam supplier should have given you this information. Seek their advice. |
Author: | NG [ Tue Apr 19, 2011 7:58 pm ] |
Post subject: | |
do many of you use oil with a zinc additive?? |
Author: | drmini in aust [ Tue Apr 19, 2011 8:12 pm ] |
Post subject: | |
NG wrote: do many of you use oil with a zinc additive??
I use SG oils (KMX 20W/50 and Castrol Edge Sport 25W/50). SG and lower (SE, SF) oils still have ZDDP, it's the SH and later where they lowered or eliminated it. |
Author: | NG [ Tue Apr 19, 2011 8:15 pm ] |
Post subject: | |
ok i always use Castrol Edge Sport 25W/50, i have a special cam zinc oil additive also to add to the oil when first running in the cam. |
Author: | Phat Kat [ Tue Apr 19, 2011 8:23 pm ] |
Post subject: | |
Just a question nick (ok make that 2 ) .... which run in lube did you get... and did the lable say to pour it in the oil or to lather it on the lobes ![]() |
Author: | NG [ Tue Apr 19, 2011 8:32 pm ] |
Post subject: | |
moly for the cam. the oil is a pour in type to be mixed with the engine oil when you run the cam in, only use the oil for 100km & then you need to drop the oil & filter & put fresh oil in. edit let me find the bottle. |
Author: | Phat Kat [ Tue Apr 19, 2011 9:12 pm ] |
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Moly Grease or molybond? |
Author: | NG [ Tue Apr 19, 2011 9:20 pm ] |
Post subject: | |
Not sure my mechanic is doing the cam. |
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