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| | | | Joined: Jul 2012 Posts: 10 New Guy | | New Guy Joined: Jul 2012 Posts: 10 | The 235 in our new truck(1948) has a lot of black sludge in the block. I've pulled the drain cock from the block and tried to back flush from there. No luck. I made a plate to go in place of the thermostat housing and tried to flush that direction, without luck.
I've got a new radiator to put in, but need to get the sludge out of the block before I install the radiator.
Does anyone have any ideas short of hot tanking the block?
I'd like to get it running and check it out before tearing into the engine.
Thanks | | | | | Joined: Feb 2000 Posts: 5,199 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,199 | Power washer, car wash, stiff wire, screw driver, lots of options with little work involved. Its mostly just bits of crude jammed together, so once you get some of it loose, the rest will follow. Power washer works best back flushing.
Joe | | | | | Joined: Jan 2009 Posts: 1,644 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 1,644 | On the block drain work a pc. of stiff wire in there tell some water starts flowing,than like Joe said it will start coming out easyer.Power washer is the tool for this job.
Pete
Last edited by Pete52; 08/02/2012 10:26 PM.
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Is it a 1948 235 or a 1955-2nd or newer 235?
| | | | | Joined: Jul 2012 Posts: 10 New Guy | | New Guy Joined: Jul 2012 Posts: 10 | Thanks for the suggestions. I finally hooked up my air compressor to the block drain and let it sit with pressure on. I pulled the water pump so I could get back along the cylinders and finally started to hear some bubbling from the back. I tapped around the drain with a small hammer and it finally broke loose. I'm going to hook my garden hose up to the drain now and back flush it good. | | | | | Joined: Jul 2012 Posts: 10 New Guy | | New Guy Joined: Jul 2012 Posts: 10 | Oh I forgot, it's a 55 model 235 | | |
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