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CustomGMC’s 12-19-2019 02:20 AM

Got the motor turning
 
5 Attachment(s)
The engine in my 67 was stuck from the PO leaving the heads off for some years (it looked rough). After spraying it all down with penetrating oil and cleaning up the cylinders we were able to slowly get the motor turning over and all seems good so far. The cylinders all cleaned up really nice. I was really planning on replacing it but I’m going to give it a chance and maybe we will get lucky if nothing else is wrong. It was supposed to run really strong but they “took the heads off to rebuild and never got them back on”
I know it’s a gamble and we should probably just have pulled it but for a $40 gasket kit and some supplies It’s a cheap experiment.
Hopefully have it running sometime in the next week.

rpmerf 12-19-2019 08:07 AM

Re: Got the motor turning
 
I dig it. What have you got to loose, right? I think my biggest fears would be either crap in the oil pan getting stuck in a port, or loosing compression depending how bad the cylinder walls were. Might try and flush that oil as much as possible before you run it, then give it an oil change quickly afterwards.

yuccales 12-19-2019 08:39 AM

Re: Got the motor turning
 
I bet she runs!

maverickmk 12-19-2019 10:00 AM

Re: Got the motor turning
 
You'll be fine. Have any before pictures?

CustomGMC’s 12-19-2019 10:32 AM

Re: Got the motor turning
 
Quote:

Originally Posted by rpmerf (Post 8645411)
I dig it. What have you got to loose, right? I think my biggest fears would be either crap in the oil pan getting stuck in a port, or loosing compression depending how bad the cylinder walls were. Might try and flush that oil as much as possible before you run it, then give it an oil change quickly afterwards.

That’s what I was thinking. I pulled the drain plug and there was only about a quart of oil that was in it so hopefully they drained most of it when they took it apart. I sprayed penetrating oil all through the lifter valley and down onto the cam and dumped a quart of oil in it so hopefully that washed out some of the dirt and stuff and then drained it. I’m going to run it and then drain it all again with it warm so hopefully any remaining sludge will wash itself out. Someone had bored it 60 over at one point and the freeze plugs in the block have been replaced so not sure on how many miles on it.

CustomGMC’s 12-19-2019 10:33 AM

Re: Got the motor turning
 
Quote:

Originally Posted by yuccales (Post 8645417)
I bet she runs!

Crossing fingers!!

CustomGMC’s 12-19-2019 10:35 AM

Re: Got the motor turning
 
Quote:

Originally Posted by maverickmk (Post 8645450)
You'll be fine. Have any before pictures?

Thanks, I don’t think I took any. The cylinders had some surface rust and it was very dirty from years without a cover on it

truckster 12-19-2019 10:53 AM

Re: Got the motor turning
 
What did the oil look like when you drained it? If there was any water in it, I'd be concerned that water might have made its way past the rings and to the crankshaft.

Ironangel 12-19-2019 12:53 PM

Re: Got the motor turning
 
Pour a quart of Marvels Mystery Oil in with 4 quarts of your favorite zinc ladened 30w oil and fire that old girl up. Run her through a couple of heat cycles tuning her up and change the oil and filter. Take a compression test to reveal any possibly weak cylinders and you should be good to go...

maverickmk 12-19-2019 12:55 PM

Re: Got the motor turning
 
Quote:

Originally Posted by Ironangel (Post 8645539)
Pour a quart of Marvels Mystery Oil in with 4 quarts of your favorite zinc ladened 30w oil and fire that old girl up. Run her through a couple of heat cycles tuning her up and change the oil and filter. Take a compression test to reveal any possibly weak cylinders and you should be good to go...

Good call on the zinc.

Keith Seymore 12-19-2019 02:50 PM

Re: Got the motor turning
 
:five:

Got the motor turnin'.....

:five:

Head out on the HIGHWAY....

:two:

Looking for adventure....

:metal:

In whatever comes my way....

:lol:

Keith Seymore 12-19-2019 02:51 PM

Re: Got the motor turning
 
(sorry)

:o

maverickmk 12-19-2019 02:52 PM

Re: Got the motor turning
 
Quote:

Originally Posted by Keith Seymore (Post 8645596)
:five:

Got the motor turnin'.....

:five:

Head out on the HIGHWAY....

:two:

Looking for adventure....

:metal:

In whatever comes my way....

:lol:

https://i.imgur.com/x9gR2lV.jpg

Mts67C10K20 12-19-2019 03:46 PM

Re: Got the motor turning
 
NICE
it's a sbc it will run when all others fail
Clean
Flush
Clean
Flush
And as always hold your breath when you hit the key

CustomGMC’s 12-19-2019 09:33 PM

Re: Got the motor turning
 
Quote:

Originally Posted by truckster (Post 8645480)
What did the oil look like when you drained it? If there was any water in it, I'd be concerned that water might have made its way past the rings and to the crankshaft.

There was about a quart of some really dark and thick oil. I think that part will be okay

CustomGMC’s 12-19-2019 09:37 PM

Re: Got the motor turning
 
Quote:

Originally Posted by Ironangel (Post 8645539)
Pour a quart of Marvels Mystery Oil in with 4 quarts of your favorite zinc ladened 30w oil and fire that old girl up. Run her through a couple of heat cycles tuning her up and change the oil and filter. Take a compression test to reveal any possibly weak cylinders and you should be good to go...

Good idea on the mystery oil! I need to get some more of it.

CustomGMC’s 12-19-2019 09:39 PM

Re: Got the motor turning
 
Quote:

Originally Posted by Keith Seymore (Post 8645596)
:five:

Got the motor turnin'.....

:five:

Head out on the HIGHWAY....

:two:

Looking for adventure....

:metal:

In whatever comes my way....

:lol:

Lol that’s funny! Hopefully heading out on the highway, I need a fun driver!

CustomGMC’s 12-19-2019 09:40 PM

Re: Got the motor turning
 
Quote:

Originally Posted by Mts67C10K20 (Post 8645611)
NICE
it's a sbc it will run when all others fail
Clean
Flush
Clean
Flush
And as always hold your breath when you hit the key

👍 that’s what I’m hoping

kidatheart 12-19-2019 09:55 PM

Re: Got the motor turning
 
Quote:

Originally Posted by maverickmk (Post 8645541)
Good call on the zinc.

Which oils are high in zinc?

Boog 12-19-2019 10:11 PM

Re: Got the motor turning
 
Externally the engine shows it's age but my goodness, inside it cleaned up real nice. The piston tops and cylinder walls look great. Hardly any ring groove to be seen. Having it opened up this far aren't you curious what shape the cam is in too? ;)

maverickmk 12-19-2019 10:20 PM

Re: Got the motor turning
 
Quote:

Originally Posted by kidatheart (Post 8645773)
Which oils are high in zinc?

I'm not aware of any oils currently available with an amount of zinc to protect flat tappet cams these days. There are small bottles of zinc additive available at all the usual auto parts stores.

kidatheart 12-19-2019 10:55 PM

Re: Got the motor turning
 
Quote:

Originally Posted by maverickmk (Post 8645782)
I'm not aware of any oils currently available with an amount of zinc to protect flat tappet cams these days. There are small bottles of zinc additive available at all the usual auto parts stores.

Ok. Thanks.

CustomGMC’s 12-19-2019 11:03 PM

Re: Got the motor turning
 
Quote:

Originally Posted by Boog (Post 8645777)
Externally the engine shows it's age but my goodness, inside it cleaned up real nice. The piston tops and cylinder walls look great. Hardly any ring groove to be seen. Having it opened up this far aren't you curious what shape the cam is in too? ;)

You are right about that, it cleaned up a lot more than I was expecting. I am curious about the cam but I’m really just wanting to see if it will run and it’s not knocking or any bottom end problems before I put any real money in it.

CustomGMC’s 12-19-2019 11:05 PM

Re: Got the motor turning
 
Quote:

Originally Posted by maverickmk (Post 8645782)
I'm not aware of any oils currently available with an amount of zinc to protect flat tappet cams these days. There are small bottles of zinc additive available at all the usual auto parts stores.

I was looking at some different zinc additives, STP sells one and some others. Any suggestions on which one I should get?

toolboxchev 12-20-2019 12:36 AM

Re: Got the motor turning
 
Did not look and see if you lubed a (new) cam and lifters???

Valvoline VR1

Comp Cams engine break in additive.

Best stuff I found out there and 89 thousand on a top end rebuild proves it to me.


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