01-15-2014, 08:13 AM
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#1
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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I just find it strange that the instructions would state to rotate the motor 360 with no regard to what the cams positions are???
Ah... maybe because when the cams is held in position with the cam timing tool none of the valves on that side of the head is fully open, thus no interference when the motor is rotated?
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01-15-2014, 09:23 AM
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#2
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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Quote:
Originally Posted by healthservices
I just find it strange that the instructions would state to rotate the motor 360 with no regard to what the cams positions are???
Ah... maybe because when the cams is held in position with the cam timing tool none of the valves on that side of the head is fully open, thus no interference when the motor is rotated?
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The engine is designed to accommodate this due to the positions of the VVT arrangement.
Don't over think it. Set cam timing on bank 1, remove the tools, rotate the engine 360*, lock the crank, fit the cams and timing tools and fit the tensioner or pre-tensioner tool, then tighten it all up. Remove the tools and you are done..
No need in over thinking it or worrying about anything else.
Or just wait for my book to be published, which has 3 chapters on cam timing, to include 3 and 5 chain specific, step by step procedures.
__________________
Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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01-15-2014, 10:45 AM
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#3
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,984
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Quote:
Originally Posted by Jake Raby
Or just wait for my book to be published, which has 3 chapters on cam timing, to include 3 and 5 chain specific, step by step procedures.
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Jake,
How long would be for your book to be available?
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01-15-2014, 11:32 AM
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#4
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Engine Surgeon
Join Date: Aug 2008
Location: Cleveland GA USA
Posts: 2,425
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Quote:
Originally Posted by Gilles
Jake,
How long would be for your book to be available?
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Thats up to the publisher. The target is late spring.
__________________
Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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01-15-2014, 09:27 AM
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#5
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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When the engine is at top dead center TDC, & the cams are properly allocated, all cam followers are on the base circle of the cams. All valves are seated.
This is why if the engine will not be started for a month or more you should put engine at TDC to unload valve springs.
__________________
OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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01-15-2014, 01:35 PM
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#6
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Registered Boxster abuser
Join Date: Oct 2011
Location: socal
Posts: 1,014
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Quote:
Originally Posted by BYprodriver
When the engine is at top dead center TDC, & the cams are properly allocated, all cam followers are on the base circle of the cams. All valves are seated.
This is why if the engine will not be started for a month or more you should put engine at TDC to unload valve springs.
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I can understand that for number one... but what about cylinder 4 when 1 is at TDC?
lets say the Firing Order is 1-6-2-4-3-5 would it not stand to reason that the number 4 is at btdc and sucking in air with full lift? maybe I'm just reading too much into it.
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01-15-2014, 01:47 PM
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#7
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Registered User
Join Date: Nov 2013
Location: Arizona
Posts: 90
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I think it's the gas, the gas is bad. Definitely the Gas. It's all bad.
__________________
It's all bad
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01-15-2014, 04:43 PM
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#8
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Beginner
Join Date: Mar 2013
Location: Houston
Posts: 1,659
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Quote:
Originally Posted by Walter White
I think it's the gas, the gas is bad. Definitely the Gas. It's all bad.
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It's all good except the gas, and the valve timimg which soon will be. I'll mix the old gas with new and burn it in an old lawnmower. The smoke should kill mosquitos. What is good is that everyone on this string is learning (sadly from my mistake, I prefer to learn from others) or teaching. I'm about halfway getting the engine out to correctly time the valves. Then I'll spin it up again, and who knows?, it might start. Then it's on to the windows - and all the grounds were tight.
__________________
2003 S manual
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01-17-2014, 08:08 AM
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#9
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by healthservices
I can understand that for number one... but what about cylinder 4 when 1 is at TDC?
lets say the Firing Order is 1-6-2-4-3-5 would it not stand to reason that the number 4 is at btdc and sucking in air with full lift? maybe I'm just reading too much into it. 
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That is the firing order but you have to take into account the cam opening & closing specs. You would have to rig up a degree wheel to determine when max lift occurs.
__________________
OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
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01-17-2014, 04:28 PM
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#10
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Beginner
Join Date: Mar 2013
Location: Houston
Posts: 1,659
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Engine is back out.
__________________
2003 S manual
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