| Author |
Message |
    
Captain Ted
Member
Username: neversummer
Post Number: 12
Registered: 10-2008
| | Posted on Saturday, October 24, 2009 - 10:51 pm: | 
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This board has been very helpful, thanks to all for the support. I am going to winterize my 1989 5.0 mercruiser (GM I think) and typically use the old pink antifreeze through the muffs technique, as it has worked well in the past. After I run the antifreeze through, should I also pull the drain plugs in the block / manifold? My understanding is that there are 5 plugs in this engine, two on block, two on manifolds, 1 for power steering cooler (I dont know where or what the cooler looks like.)I have also heard that it makes sense to pour some antifreeze down the large house at the thermostat housing...Is this just the biggest hose of the 4 that i believe meet at the T-stat housing? |
Kghost
Senior Member
Username: kghost
Post Number: 1048
Registered: 07-2008
| | Posted on Sunday, October 25, 2009 - 08:34 am: |
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Guy Gaspar
Senior Member
Username: guyjg
Post Number: 5445
Registered: 08-2006
| | Posted on Sunday, October 25, 2009 - 09:16 am: |
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Kghost:
Very nice and simple posting. The picture says a thousand words. |
John Guerrero
New member
Username: maddog2112
Post Number: 1
Registered: 11-2009
| | Posted on Tuesday, November 03, 2009 - 08:15 am: |
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I have the Tahoe Q6 with merc 5.0 and need to put my mind at ease. I winterized last week and have a couple of questions. I poured a/f down the 2 hoses marked in green going to the exhaust manifolds. That all ends up in the block correct? I also poured a bunch into the large hose going into the waterpump. That also goes into the block correct. I poured a total of 4 gallons. am I safe? Ps. All the a/f was pored in after draining and reinserting the drain plugs. thanks in advance. |
Guy Gaspar
Senior Member
Username: guyjg
Post Number: 5462
Registered: 08-2006
| | Posted on Tuesday, November 03, 2009 - 10:41 am: |
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John:
Four gals. is more than enough. Did much A/F ended up on the ground? |
John Guerrero
New member
Username: maddog2112
Post Number: 2
Registered: 11-2009
| | Posted on Tuesday, November 03, 2009 - 03:24 pm: |
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Just the stuff that came out of the outdrive when I poured a quart or so down the seawater intake line. I just wanted to make sure it all ended up in the block, thru the hoses I mentioned earlier . Thanks |
Captain Ted
Member
Username: neversummer
Post Number: 13
Registered: 10-2008
| | Posted on Sunday, November 08, 2009 - 11:19 am: |
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You guys sure werent kidding about the amount of water that comes out of the block and exhaust manifold drain holes. After I only saw a trickle when I removed the blue and brass drain plugs, I stuck a flat headed screw driver up there to loosen all the rust and holy smokes, a lot of water came out! |
Bt Doctur
Senior Member
Username: bt_doctur
Post Number: 1212
Registered: 06-2006
| | Posted on Sunday, November 08, 2009 - 01:07 pm: |
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The hoses for the manifolds feed just the manifolds,you drain them first, ,then pour the A/F in untill it comes out the exaust.
The big hose from the top of the water pump, drain block first, install plugs, pour A/F in the hose untill it comes out the therm housing
The water inlet hose, pour A/F in there or remove the drive and blow some shop vac air thru it. |
Bob Griest
Member
Username: hippie
Post Number: 76
Registered: 04-2009
| | Posted on Tuesday, November 10, 2009 - 06:54 pm: |
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You men say to open the manifold drains but why not just take the hose off the 90* fitting at the bottom? Thank you, Bob |
Kghost
Senior Member
Username: kghost
Post Number: 1071
Registered: 07-2008
| | Posted on Tuesday, November 10, 2009 - 07:06 pm: |
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either / or just put them back on before adding any antifreeze |
