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#1
05-17-2005, 11:24 AM
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I am installing a Compcams number 51-233-4 camshaft into a 428. It seems to require a quarter inch shim behind the canshaft to properly aligh endplay. Where do we get these shims or spacer?
Thank you in advance, Keith |
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#2
05-17-2005, 11:24 AM
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I am installing a Compcams number 51-233-4 camshaft into a 428. It seems to require a quarter inch shim behind the canshaft to properly aligh endplay. Where do we get these shims or spacer?
Thank you in advance, Keith |
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#3
05-17-2005, 11:49 AM
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There is no rear shim.
The cam is located with the front cam plate and eccentric. The rear freeze plug may not be knocked in far enough. But, you don't want it too close to the cam.
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#4
05-17-2005, 12:15 PM
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You should be OK. Remember, this isn't a chevy small block. The cam thrust plate bolts to block after cam is installed. Then install cam gear AND fuel pump eccentric. The thrust plate, gear and eccentric locate the cam. All the parts must be installed before camshaft enplay can be checked.
good luck robertg
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I could explain all this to the girl at the parts store, but she'd probably call the asylum. White '67 LeMans 407/TH350/Ford 3.89... RIP Red '67 LeMans. 407/TH400/Ford 3.25 |
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#5
05-17-2005, 02:27 PM
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Simds Performance(do a search in race parts) has a roller bearing thrust plate that limits front and rear thrust.Got one on my new 455.
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune [email protected] 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs 1964 Corvette Coupe 327 4 speed |
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#6
05-17-2005, 02:27 PM
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Fat finger syndrome-Sims performance
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune [email protected] 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs 1964 Corvette Coupe 327 4 speed |
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#7
05-17-2005, 03:59 PM
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I installed the cam retainer, timing gear and fuel pump accenteric. The cam just went back a quarter inch too much. Should I install the thrust plate from sims? Or would it have a tendency to move to the forward position due to the distributor gear? I hate to ask these stupid questions, but I have not seen this much play in cam installation. Also, this is my first assembly of a Pontiac engine. Just want to make sure things go right the first time. I asked the question by email to Comp Cams, but no answer yet. Their phone is very busy.
Thank you all for your help, Keith |
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#8
05-17-2005, 04:10 PM
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Keith if you have all the parts on and it moves back a quarter inch than you dont have the fuel pump eccentric on correctly!! You must line the tab on the eccentric up with the key slot in the cam gear so the cam literly pulls through the eccentric to the washer and bolt.When installed correctly the cam should only move back and fourth a few thousandth. I can bet you dont have it lined up right and the cam isent pulling through the eccentric. I hope this helps you out.
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#9
05-17-2005, 04:33 PM
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Tiacguy...Your were right. Just did not have that little stinker installed right. I can't belive I fell for that joke. I got the key tab in the slot, but did not have the accenteric lined up so the cam could go through the hole. Thank you all so very much for your help. The build now moves forward.
Thanks again, Keith |
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#10
05-17-2005, 06:35 PM
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Not really any of my business, but since this is your first Pontiac engine, do you have a shop manual or some such reference? A Pontiac shop manual for any year V8 ('55-'??) would be invaluable to you.
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons? ... or has built a record breaking DOHC hemi four cylinder Pontiac? ... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967) ... or has a Pontiac born the same year as Jim Wangers? (1926} 
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#11
05-19-2005, 06:55 AM
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I have several Pontiac engines, just the first one I have built. I do have shop manuals. I also now remember reading about the issue a few years ago on this forum site. Just getting old. Can't remember much, so have to take things real slow and re-check everything.
Happy Day, Keith |
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