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 Post subject: Exhaust cam advanced.
PostPosted: Fri Oct 31, 2014 5:32 am 
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Joined: Fri Oct 10, 2014 4:53 am
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Location: Portugal
Hi, today when i was changing my timing belts, i checked the point of the motor and at the exhaust cams it was 1 teth to the right. What should i do or what is the effect if being 1 teth to the right.

Help please!

Thanks!


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 Post subject: Re: Exhaust cam advanced.
PostPosted: Fri Oct 31, 2014 7:26 am 
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Location: Adelaide SA
Put it back to stock. and all inline

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 Post subject: Re: Exhaust cam advanced.
PostPosted: Thu Nov 06, 2014 7:37 am 
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It gives you more bottom end but puts it at risk of valves hitting pistons at high revs

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 Post subject: Re: Exhaust cam advanced.
PostPosted: Thu Nov 06, 2014 9:01 am 
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dbennett wrote:
It gives you more bottom end but puts it at risk of valves hitting pistons at high revs


How does the "high" revs change the valve clearance to what it would be at idle?

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 Post subject: Re: Exhaust cam advanced.
PostPosted: Thu Nov 06, 2014 9:38 am 
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Ask Graeme at pcp.
He is a seasoned master at advancing cams and valve smashing.

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 Post subject: Re: Exhaust cam advanced.
PostPosted: Thu Nov 06, 2014 11:41 am 
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1600GTI wrote:
Ask Graeme at pcp.
He is a seasoned master at advancing cams and valve smashing.


Let's not go there, please.

Like I said, revs don't have any impact on the valve clearance, advancing a cam too far as 1600GTI has pointed out does. That was what I was pointing out.

1 Tooth, will equate to about 8 degrees from memory, which should have no issue with valve clearance.

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 Post subject: Re: Exhaust cam advanced.
PostPosted: Thu Nov 06, 2014 3:25 pm 
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Location: Hamilton NZ
Crankshaft whip, block flex, conrod material all come into play at high revs...the 1.6 hollow crankshaft.....

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 Post subject: Re: Exhaust cam advanced.
PostPosted: Thu Nov 06, 2014 6:42 pm 
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blake wrote:
Crankshaft whip, block flex, conrod material all come into play at high revs...the 1.6 hollow crankshaft.....


Think he is talking bout g13b Blake.

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 Post subject: Re: Exhaust cam advanced.
PostPosted: Tue Oct 13, 2015 7:18 pm 
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Joined: Tue May 19, 2015 11:31 am
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Location: Malaysia
anyone know how to tune 272 camshaft ?


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