No Fun Here...
Thread Starter
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
No Fun Here...
My old 69 finally gave it up. Original motor, never out of the car. All numbers matching 69 427. Driving down the highway home and on shift, one cylinder quits. No noise. Puff of blue smoke out the right side. Idle home and it is missing on #2. Pull the plug and its oil. Compression check is zero on 2... Big blow by through the crankcase every time number two hits. Pulled the covers and both valves on 2 are working so am figuring it's a piston? No oil in the coolant or coolant in the oil. No knock. Quiet as a dead hog. I pulled in into the garage and this is as far as I got today.
Racer
Joined: Aug 2006
Posts: 330
Likes: 3
From: Wellington, New Zealand
Piston my have cracked, the rings could be holding the parts together? Might explain why there is no compression but nothing is rattling or banging around. A bit of bad luck, but it could have been worse. Car looks pretty nice from what I can see.
Thread Starter
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Hole in the piston. Hope the block is good.
Now you have an excuse to build it bigger and better. Totally stock, numbers matching exterior. 4.280 Bore and 4" stroke, internal balance, Pocket port heads, Roller cam. 460 CI, an extra 100 hp and no one will ever know. It is a beautiful car.
Now you have an excuse to build it bigger and better. Totally stock, numbers matching exterior. 4.280 Bore and 4" stroke, internal balance, Pocket port heads, Roller cam. 460 CI, an extra 100 hp and no one will ever know. It is a beautiful car.
Safety Car
Joined: Jun 2013
Posts: 4,399
Likes: 793
r
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Burning Brakes
Joined: Apr 2008
Posts: 1,222
Likes: 93
From: shelbyville West Michigan
I'd say 46 years isn't too bad for the original engine that's never been touched. you made it through years of un-leaded gas, low octane, ethanol, unhardened valve seats, low ZDDP oil, and who knows what else...
Drifting
Joined: Sep 2010
Posts: 1,412
Likes: 50
From: Laguna Niguel California
Sorry to hear about your misfortune. That's a beautiful car. The 1969 427 is the holy grail of Corvettes. Well, you may as well get busy with the rebuild, and while you're at it . . .
Thread Starter
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
Thanks guys! I haven't got the head off yet. I had done a compression check last fall and it was 150 plus or minus 3 on all. On doing intake manifold gaskets I peeked through the front and saw that the original nylon timing gear was still there from the factory.... See below. So, I replaced the cam, lifters, springs, retainers and pushrods while I was in there. When I did the pan gasket I looked up and the stock factory numbers are stamped inside the pistons. It probably would have taken me about 20 mins more to just pull the motor. Hope I didn't screw the block as the matching numbers are on the pad and with #2 it would be hard to even sleeve without decking. 45 years is pretty good on the stock stuff! Head off with pics tomorrow but my bet is a cracked piston and hopefully no damage to the block that can't be cleaned up.
Thanks again guys! This old thing means the world to me.
Thanks again guys! This old thing means the world to me.
Thread Starter
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
Check the bottom pic. Forlorn or what? Who takes a real 1969 427 Corvette and sticks it on the curb and who has a wife smart enough to pass by and go wohaaa, oh my...? Lucky and then some. She said: Can I buy this car. There is no question mark because she really wasn't asking.
Last edited by CanadaGrant; Apr 2, 2015 at 12:21 AM.
Safety Car
Joined: Oct 2007
Posts: 3,729
Likes: 267
From: Austin Texas
Corvette of the Year Winner 2017
2016 C3 of Year Finalist
actually, if your in good finical position the FUN is just starting !
visions of new Engine.. hmm,, more HP ! Pistons, ..Rods, ..Cam, Heads ?
save that block at all cost.
Good Luck
visions of new Engine.. hmm,, more HP ! Pistons, ..Rods, ..Cam, Heads ?
save that block at all cost.
Good Luck
Thread Starter
Safety Car
Joined: Apr 2006
Posts: 4,057
Likes: 421
From: BC
Thanks Pete. I was in the middle or removing the intake manifold so I could get the head off and my wife forced me to sit down and have a cold Miller. It's her fault.... I'm not sure I want to see this but I guess sooner is better than later.
