Cam timing, maybe ?

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Re: Cam timing, maybe ?

Postby Robski » Sun Sep 23, 2012 12:44 pm

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Re: Cam timing, maybe ?

Postby Avdr » Sun Sep 23, 2012 10:18 pm

Pulling Vac pipe from EGR doesn't prove the EGR isn't sticking. Nominal voltage for EGR shut (ie. with pipe removed) should be 1.5-1.6v on signal wire from EGR position plug.
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Re: Cam timing, maybe ?

Postby Liteace » Sun Sep 23, 2012 10:21 pm

Thanks All, as I said I'll have to pull chain cover off 1st to see what the nosie is in there, when thats all ok and timing is spot on i'll investigate further
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Re: Cam timing, maybe ?

Postby Liteace » Wed Oct 10, 2012 6:41 pm

Timing tool arrived today, cam timing was 5 degrees retarded, its all stripped down at the mo to see if I can find the grinding noise, I'll scope it again when its back together with correct cam timing and compare

:D
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Re: Cam timing, maybe ?

Postby Darren Cotton » Thu Oct 11, 2012 5:59 am

Litace,

Great that you found an issue, but can you tell me how you know its 5 Degrees out? You may well have discovered a technique that none of us are aware of... Can you explain your capture please... How did you get to the conclusion from the capture and do you think your new capture will be any different?


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Re: Cam timing, maybe ?

Postby s4c » Mon Oct 29, 2012 10:01 pm

I think what Liteace is trying to show is, the TDC point is shown on the peaks of the current ramp on relative compression, not 100% accurate but fairly close.

He can then see where the injection takes place in relation to 'TDC', again not 100% accurate but fairly close.

Sorry for jumping in on this post, did you manage to get some 'after' traces?
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