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It's a trap...
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I need to do a deck height check but the valve train guy put the heads and the cam tower together with locktight. How do I seperated the two to put the head on one and four?
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Run like the wind, straining the limits of machine and man.... 2006 Atlas Gray Carrera 4, '81 911SC Black on Tan (SOLD), 2006 Acura RSX Type S, '13 Dodge Durango (wifeys). |
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Straight shooter
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Check all the nuts and I pry gently *GENTLY* above the port where the meat is thickest to separate. Constant pressure and wiggle, they pop apart.
Should be able to do the deck height with the cam tower attached though, yes? Shouldn't be a problem to only have one or two of the cylinders in place even if you install the piston/cylinders without clipping the piston in at both ends.
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“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.” ― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values Last edited by Lapkritis; 05-14-2013 at 07:57 PM.. |
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Registered
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Separating Heads From Camshaft Towers
Don't know if this applies to what you are doing (heads/towers already removed/on bench?). Here's how I separated mine (they had some sort of bonding agent making it difficult).
I placed a small object (wood handled wire brushes) under the heads that I was not removing: ![]() Then I separated by hitting the studs with a brass drift: ![]() If nothing else - possibly provides some ideas. Gordo
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Don "Gordo" Gordon '83 911SC Targa |
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It's a trap...
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Thanks
I figured I would have to do one of those two things. Just wanted to make sure there wasn't a better way from the guru's here. Kinda scarey prying on the cooling fins.
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Run like the wind, straining the limits of machine and man.... 2006 Atlas Gray Carrera 4, '81 911SC Black on Tan (SOLD), 2006 Acura RSX Type S, '13 Dodge Durango (wifeys). |
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Straight shooter
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Yep, would not pry on the fins at all.
__________________
“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.” ― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values |
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Puny Bird
Join Date: Nov 2002
Location: Port Hope (near Toronto) On, Canada
Posts: 4,566
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Yep, don't pry on fins and make sure all the nuts are off.
There are areas that have more meat, as long as it's not a sealing surface. Go around and around the tower prying gently, just a hair each time and it will come off.
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'74 Porsche 914, 3.0/6 '72 Porsche 914, 1.7, wife's summer DD '67 Bug, 2600cc T4,'67 Bus, 2.0 T1 Not putting miles on your car is like not having sex with your girlfriend, so she'll be more desirable to her next boyfriend. |
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It's a trap...
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Might try w/o separating
Andrew, I think I may try putting the whole thing on w/ a cylinder on each end and only tighten the head I want to measure. If I can't do it that way, I'll separate. Thank you all.
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Run like the wind, straining the limits of machine and man.... 2006 Atlas Gray Carrera 4, '81 911SC Black on Tan (SOLD), 2006 Acura RSX Type S, '13 Dodge Durango (wifeys). |
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Moderator
Join Date: Dec 2001
Posts: 9,569
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I wouldn't recommend that as a reliable way to measure either piston to cylinder clearance or deck height. Best way is to melt the loctite, separate everything, clean it and reassemble the way the engine is intended to fit together.
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'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) |
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Straight shooter
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Unless I'm mistaken, the cam tower is bolted atop the heads on these engines... and it's intended that way. What would cause you to believe the presence of the tower on a fastened head would change the piston to head clearance?
__________________
“Of the value traps, the most widespread and pernicious is value rigidity. This is an inability to revalue what one sees because of commitment to previous values. In motorcycle maintenance, you MUST rediscover what you do as you go. Rigid values makes this impossible.” ― Robert M. Pirsig, Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values |
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