OHC-6 TECH Over Head Cam projects, questions and advice.

          
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  #1  
Old 05-14-2012, 09:01 PM
B2fkb0 B2fkb0 is offline
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Default 69 timing sprocket question

Hello
In the process of rebuilding the OHC 6 I've always wanted and damaged the crankshaft 19 tooth cam drive sprocket. Does anyone have any leads on where I can find one of these? Any help is appreciated!
Dan

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  #2  
Old 05-15-2012, 09:49 AM
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TheSilverBuick TheSilverBuick is offline
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If you want just the cam sprocket I have a couple of them. I don't know the years of them, but I believe any would work. For the cost of a flat rate USPS box I could send you one. Send me a PM.

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Old 05-15-2012, 10:30 PM
Cammer-6 Cammer-6 is offline
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where is it damaged at?
I ve been rephasing them by redrilling the pin to advance or retard the cam timing
so if the pin hole is messed up it can be saved

keep in mind that the 69 had different timing marks

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Old 05-16-2012, 07:09 AM
B2fkb0 B2fkb0 is offline
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Quote:
Originally Posted by Cammer-6 View Post
where is it damaged at?
I ve been rephasing them by redrilling the pin to advance or retard the cam timing
so if the pin hole is messed up it can be saved

keep in mind that the 69 had different timing marks
It's the lower sprocket that is on the crankshaft behind the harmonic balancer. Silver Buick is sending me one from a 230 engine that I'm thinking of modifying (thank you Silver Buick!). Anyways, the front lip got broken and parts of 4 teeth we're affected. I'm still looking for a 69. The engine is in a rebuild class at the community college and the part was accidentally broken. The instructors and students are very interested in the engine and I provided them with a good deal of documentation, 69 assembly manual, ohc q&a from Fgf, ohc 6 r us video (Richard mcDonough), info from this board... Anyways, the class is wrapping up and the re-assembly in process and the gear is needed. Thanks for everyone's help!
Dan

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Old 05-16-2012, 08:30 AM
Cammer-6 Cammer-6 is offline
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pretty sure I have an extra 250 one
230 has a different keyway depth

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Old 05-16-2012, 12:08 PM
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isn't there a differance in the inner diameter hole size between a 230 and 250? Its been to many years senseI messed with any 230's. All 250 spare parts at my house now.

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Old 06-06-2012, 11:10 PM
B2fkb0 B2fkb0 is offline
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Default 250 crank gear

Just want to say thank you to Cammer 6 for the correct 250 crank sprocket. Got it yesterday and it fits! Thanks also to Silver Buick who sent me a 230 crank sprocket, which turned out to have a smaller hole than the 250 (the 250 crank is bigger). If anyone needs the 230 unit, give me a shout. I'm anxious to put the six in a bird! Thanks PY for a forum filled with helpful, knowledgeable people!
Dan

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Old 06-07-2012, 07:46 AM
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Glad you got one, I have still not located a spare 250 sprocket, just three 230 sprockets!!!! and I do not run any 230's any more!!!!

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60 Jaguar Mark 2, 3.8L Automatic
67 Sprint Firebird 230 OHC-6 4-Speed A/C
78 Catlina Safari, Pontiac 400 powered
77 Astre Formula, 215 Buick V-8 T-5
73 Lemans Safari, 400 4bbl 4-speed
71 Catalina Enforcer, 455 4bbl
06 Mallet Solstice #024 LS2, Now with a Tremec 6060 6-speed!
2012 F-150 Echo Boost (My local Ford Dealer SUX!!!)
2020 Dodge Charger Scat pack (recovered)
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Old 06-07-2012, 06:15 PM
Cammer-6 Cammer-6 is offline
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Quote:
Originally Posted by camerjeff View Post
Glad you got one, I have still not located a spare 250 sprocket, just three 230 sprockets!!!! and I do not run any 230's any more!!!!
bore it and use a keyway cutter if you need 250 in a pinch

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