Head swapin in car.whats best way to drain block..?June 12 2017 at 3:26 PM
|Mark (Login Marx427)|
Hey Y'all, I'm changing a head gasket over the fender on a 65 Galaxie this week and I'd appreciate some advice on how to evacuate all or most of the water from the block.
Last time I did this on an FE, I got a bit of water into a couple of cylinders ....sent me scrambling for my girlfriends turkey baster and my can of WD-40....
Don't want to ruin another turkey baster, so what do you suggest to drain jackets at a lower level than bottom of head passages?
Re: Head swapin in car.whats best way to drain block..?
|June 12 2017, 3:57 PM |
Last time I did this I drained the radiator and then took off the theremostat housing and used my shop vac to suck out the rest of the water. If I remember right I also took out the lower bolt on the alt. bracket that goes to the head on the pass. side and that helped drain the head. You'll never get it all out but that will get most of it, also watch that you don't spill any of the antifreeze down the exhaust pipe like I did , it sure does make it smoke at start up.
1956 Ford F-100 460/C6
1964 Galaxie 500/390
smoke at startup
|June 12 2017, 6:36 PM |
On my stupid wagon i've beheaded it several times, each time managing to spill a bunch in the cylinders and down the pipes. I must have got a lot in the mufflers last time as it billowed white smoke for a long time. The antifreeze doesn't just evaporate like water. It took a half hour of embarrassing driving!
You can siphon it out after the intake is off by using a small clear tube down the rear head crossover passage and down through the head gasket hole in the deck.
Lower water pump bolt, passenger side
|June 12 2017, 4:58 PM |
Take that bolt out. It will drain the coolant below the level of the head gaskets on both sides.
1910 Model T Ford touring Red / Black
1914 Model T Ford touring Maroon / Black
1917 Model T Ford Torpedo runabout green
1915 Model T Ford touring Black of course!
1968 Mercury Cougar 428CJ Ram Air Red / Black/ Black
1968 Cougar XR7-G 390-2V X code Red / Black
1968 Cougar GTE 427 Augusta Green / Saddle
X2 on the lower water pump bolt
|June 13 2017, 7:49 AM |
Re: head swappin'
|June 12 2017, 5:33 PM |
Why not drain the block thru the petjcocks on either side of the block. I'm not a youngster but has worked on all sorts of engines.
Not zacktley a youngster myself.....but last block petcocks I saw was on a 37...
|June 12 2017, 5:57 PM |
....not sure if you mean the screw in plugs.....but I aint touching those........
'64 390 has one
|June 12 2017, 6:05 PM |
Not sure who put it in, but came with the stock motor.
|June 12 2017, 8:33 PM |
My 64' has one on each side. I replaced them with brass marine drains.
|June 13 2017, 6:14 AM |
I spent the money for the good brass marine style, they are awesome. Luckily the screw in plugs came out of that block.
|June 12 2017, 7:18 PM |
To be honest with you, just wiping it out with a rag won't hurt a thing.
However, bottom water pump bolt should get it low enough
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 445 cid FE, headers, RPM intake, 1000 HP series Holley, 4 speed
Flatheads all had petcocks....
|June 12 2017, 8:06 PM |
and I believe the Y-blocks I played with all had 'em too. Spilled a bit the first time I took the head off my '64 427. Don't believe I climbed under to check for a petcock. After that, I built engines on a stand/bench and put in whatever I found necessary.
|June 13 2017, 6:31 AM |
I installed these to eliminate antifreeze running into my armpits.