regal_bill
Cadet
- Joined
- Sep 30, 2011
- Messages
- 27
Good Afternoon!
I have a 1990 Volvo 5.7 (DP-A). While winterizing, I got no water to drain from the SB exhaust manifold. I got some wire (and zip ties, and nails) and have spend 2-3 hours trying to dislodge gunk. I can get the wire in about 3-4 inches, then I can't get it any further. I keep pulling out bits of gunk - moist black sooty gritty stuff, a couple of grams at a time. I can get a mirror and see down into the drain about 3-4 inches, then I can't tell if if turns or is just blocked. I pulled the port plug, and it looks to me like there are two channels inside. On the SB side I only see one - and what could possibly be one that is completely blocked off by that same black gritty stuff.
I can't get a good shot in with the wire because of the exhaust (see below). Do I keep chipping away at the gunk and hope at some point it breaks free? Do I pull the exhaust so I can get a better shot in to try to clean it out (and if so, how is that done? I'm assuming it's NOT as easy as loosening the hose clamps and pulling...). Is there something I can pour into the manifold at the thermostat side to eat away from the inside?
I've never pulled this drain plug before - for 20 years I've been winterizing by feeding antifreeze in through the muffs. Yes, I know people cringe at that, but it's worked okay for me - although not pulling the plugs probably contributed to the gunk buildup. I gave up with the muff method because I can't get the engine to pull the AF in anymore.
I poured AF into the manifold until it came out the drive unit, but without draining it first, I have no idea what the mixture with the water that was inside is. I'm most likely still a freeze risk.
Any help, ideas, suggestions would be greatly appreciated!
Bill
I have a 1990 Volvo 5.7 (DP-A). While winterizing, I got no water to drain from the SB exhaust manifold. I got some wire (and zip ties, and nails) and have spend 2-3 hours trying to dislodge gunk. I can get the wire in about 3-4 inches, then I can't get it any further. I keep pulling out bits of gunk - moist black sooty gritty stuff, a couple of grams at a time. I can get a mirror and see down into the drain about 3-4 inches, then I can't tell if if turns or is just blocked. I pulled the port plug, and it looks to me like there are two channels inside. On the SB side I only see one - and what could possibly be one that is completely blocked off by that same black gritty stuff.
I can't get a good shot in with the wire because of the exhaust (see below). Do I keep chipping away at the gunk and hope at some point it breaks free? Do I pull the exhaust so I can get a better shot in to try to clean it out (and if so, how is that done? I'm assuming it's NOT as easy as loosening the hose clamps and pulling...). Is there something I can pour into the manifold at the thermostat side to eat away from the inside?
I've never pulled this drain plug before - for 20 years I've been winterizing by feeding antifreeze in through the muffs. Yes, I know people cringe at that, but it's worked okay for me - although not pulling the plugs probably contributed to the gunk buildup. I gave up with the muff method because I can't get the engine to pull the AF in anymore.
I poured AF into the manifold until it came out the drive unit, but without draining it first, I have no idea what the mixture with the water that was inside is. I'm most likely still a freeze risk.
Any help, ideas, suggestions would be greatly appreciated!
Bill