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

          
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  #41  
Old 03-21-2017, 12:33 PM
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Identical
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1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops)
1969 LeMans (2dr & 4dr Hardtop and a Cvt)
1969 LeMans Safari 2 seat Wagon
1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvt’s & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie Cvt
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  #42  
Old 03-21-2017, 12:37 PM
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what do you know about where it came from? does it look like factory paint?

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My Break Away Squad
1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops)
1969 LeMans (2dr & 4dr Hardtop and a Cvt)
1969 LeMans Safari 2 seat Wagon
1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvt’s & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie Cvt
1969 Bonnie 3 Seat Wagon (2 of them)
1969 Bonnie Brougham (4dr Hardtop & Cvt)
1969 Grand Prix SJ (2 of them)
1969 2+2 2dr Hardtop (Canadian model)
  #43  
Old 05-01-2017, 10:33 AM
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Engine rebuild is progressing. Received all the parts from EGGE, right on time and no errors, good service!

Machining is mostly done, had to fab some boring plates since my builder didn't have anything for Poncho OHC. Crank just needed polishing on the main and rod areas but I was surprised how out of balance the balancer, crank and flywheel were 15-25 grams off each. No wonder engine had a "coarseness" to her over 4k.

Hopefully she will be ready to head home by the end of the week.

__________________
My Break Away Squad
1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops)
1969 LeMans (2dr & 4dr Hardtop and a Cvt)
1969 LeMans Safari 2 seat Wagon
1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvt’s & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie Cvt
1969 Bonnie 3 Seat Wagon (2 of them)
1969 Bonnie Brougham (4dr Hardtop & Cvt)
1969 Grand Prix SJ (2 of them)
1969 2+2 2dr Hardtop (Canadian model)
  #44  
Old 06-19-2017, 11:07 AM
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Finished the instal over the weekend and put a good 100 miles on it Sunday. Despite the heat (90's and very humid it runs beautiful with no noises or vibration. Happy and relieved as this is my first foray into the workings of an OHC. Oil pressure is 20 at hot idle and 40 at hot cruising speed (didn't change the pump and it looks factory).

Only thing is a bit of weakness off idle (not the accel pump). I believe the problem is that the vacuum advance is DOA (probably has been for years). It uses ported vacuum that should give vacuum advance right as you step on it before RPM builds so that is probably the culprit. Found an NOS one and should have it by the end of the week.
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__________________
My Break Away Squad
1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops)
1969 LeMans (2dr & 4dr Hardtop and a Cvt)
1969 LeMans Safari 2 seat Wagon
1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvt’s & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie Cvt
1969 Bonnie 3 Seat Wagon (2 of them)
1969 Bonnie Brougham (4dr Hardtop & Cvt)
1969 Grand Prix SJ (2 of them)
1969 2+2 2dr Hardtop (Canadian model)
  #45  
Old 06-20-2017, 05:45 AM
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Jeff Hamlin Jeff Hamlin is offline
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Looks Great.
Happy Motoring

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  #46  
Old 06-20-2017, 11:15 AM
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Always a good feeling to be back on the road. The car seems to be a familiar color =P

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  #47  
Old 06-20-2017, 02:07 PM
66sprint6 66sprint6 is online now
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nice

  #48  
Old 06-21-2017, 11:56 AM
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In hindsight it was long overdue for a rebuild, apart from no longer blowing blue smoke on acceleration the biggest change is smoothness. The engine has never had a full rebuild before but the cylinders had been overbored in 78. The crank, flywheel and balancer were all way out of balance so the change in "revability" is huge.

Power is up by probably a third from its previous tired state. The appeal of a Sprint is now more evident, feels a bit like a stout little 283 chevy V8.

__________________
My Break Away Squad
1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops)
1969 LeMans (2dr & 4dr Hardtop and a Cvt)
1969 LeMans Safari 2 seat Wagon
1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvt’s & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie Cvt
1969 Bonnie 3 Seat Wagon (2 of them)
1969 Bonnie Brougham (4dr Hardtop & Cvt)
1969 Grand Prix SJ (2 of them)
1969 2+2 2dr Hardtop (Canadian model)
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