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Water pump in, next A/C Bracket
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Topic: Water pump in, next A/C Bracket (Read 6707 times)
ncsurfer
Inactive
Senior
USA, NC, Raleigh
Posts: 190
In good company!
Water pump in, next A/C Bracket
«
on:
October 05, 2012, 20:47:50 »
I replaced the water pump with a long neck version(thanks for all the great advice), but now I need to take the A/C bracket off to get at the short hose coming off of the water pump housing.
I have most of the visible bolts off of the front of the A/C bracket except the lowest one and I have the bolt on the top side of the bracket. My question is: Do I need to take the A/C bracket off without taking the A/C compressor off of the bracket, or should I take the compressor off the bracket and then the bracket itself?
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1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck
ncsurfer
Inactive
Senior
USA, NC, Raleigh
Posts: 190
In good company!
Re: Water pump in, next A/C Bracket
«
Reply #1 on:
October 05, 2012, 22:24:37 »
Also, how do I get at the bottom bolt on the front of the bracket?
Thanks.....
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1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck
Benz Dr.
Associate Member
Platinum
Canada, ON, Port Lambton
Posts: 7220
Benz Dr.
Re: Water pump in, next A/C Bracket
«
Reply #2 on:
October 05, 2012, 22:32:47 »
Not sure what you have in mind but I suppose everything would be easier to work on without the weight of the AC pump. Removing the AC bracket just to get at the short hose or chain tensioner is one of the least attractive jobs on the whole car; relative to lots of jobs that aren't that much fun.
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1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA ''The Red Rocket ''
Dan Caron's SL Barn
1970 3.5 Coupe
1961 190SL
1985 300CD Turbo Coupe
1981 300SD
2013 GMC Sierra
1965 230SL
1967 250SL
1970 280SL
1988 560SEC
ja17
Full Member
Platinum
USA, OH, Blacklick
Posts: 7414
Re: Water pump in, next A/C Bracket
«
Reply #3 on:
October 06, 2012, 00:08:39 »
I usually leave the compressor on the bracket since the bolts holding the compressor to the bracket are difficult to get to also. But the assembly is heavy and very awkward. You may be able to get to the front lower bolt through a factory hole in the vibration dampner Just turn the engine to line up the hole. There is a single nut on a stud between the AC bracket and the block. It is difficult to get to. Also I presume you got the 17mm head bolt in the recess of the bracket which attaches to the front of the cylinder head? This is one of two which attach to the cylinder head. The other is a 19mm head bolt which is above the 19mm head bolt.
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Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback
ncsurfer
Inactive
Senior
USA, NC, Raleigh
Posts: 190
In good company!
Re: Water pump in, next A/C Bracket
«
Reply #4 on:
October 06, 2012, 00:28:37 »
Joe, thank you so much. I would have never thought about turning the dampner. I just could not see a way to get at the lower bolt. Yes, I think I got the 17mm bolt you are talking about if you mean the one on the side of the head. I will check again in the morning if it is not. Thanks......
Logged
1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck
ja17
Full Member
Platinum
USA, OH, Blacklick
Posts: 7414
Re: Water pump in, next A/C Bracket
«
Reply #5 on:
October 06, 2012, 06:38:09 »
There is a 17mm on the front of the head also. It is just belowand to the left of the 19mm. It is hidden in a recess.
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Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback
ncsurfer
Inactive
Senior
USA, NC, Raleigh
Posts: 190
In good company!
Re: Water pump in, next A/C Bracket
«
Reply #6 on:
October 07, 2012, 00:21:32 »
I also found what I think, are 2 12mm bolts to the block and bracket, but I do not have a wrench that will fit into the space. Joe, are these 12mm? I they are, I will buy a 12mm swivel head socket wrench to get at them. Thanks.....
Logged
1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck
ja17
Full Member
Platinum
USA, OH, Blacklick
Posts: 7414
Re: Water pump in, next A/C Bracket
«
Reply #7 on:
October 07, 2012, 00:25:33 »
If those are the ones down on the side, low, between the compressor and the block, they should be 13mm head if original.
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Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback
ncsurfer
Inactive
Senior
USA, NC, Raleigh
Posts: 190
In good company!
Re: Water pump in, next A/C Bracket
«
Reply #8 on:
October 07, 2012, 00:33:54 »
Thank you Joe, you are the best!!!!!
Logged
1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck
ja17
Full Member
Platinum
USA, OH, Blacklick
Posts: 7414
Re: Water pump in, next A/C Bracket
«
Reply #9 on:
October 07, 2012, 02:36:08 »
Be careful to seal all those bolt threads going into the block during re-assembly or you may have a leak!
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Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback
ncsurfer
Inactive
Senior
USA, NC, Raleigh
Posts: 190
In good company!
Re: Water pump in, next A/C Bracket
«
Reply #10 on:
October 07, 2012, 03:40:56 »
I used an aluminum, copper, graphite anti-seize compound on the bolts going into the water pump and block. Should I use the same for all the A/C bracket bolts going into the block as well? Thanks...
Logged
1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck
ja17
Full Member
Platinum
USA, OH, Blacklick
Posts: 7414
Re: Water pump in, next A/C Bracket
«
Reply #11 on:
October 07, 2012, 04:57:02 »
Normally a sealing compound like Permatex, or a gasket shellac is used for sealing bolt threads.
Logged
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback
ncsurfer
Inactive
Senior
USA, NC, Raleigh
Posts: 190
In good company!
Re: Water pump in, next A/C Bracket
«
Reply #12 on:
October 07, 2012, 11:47:47 »
Will do thanks.....
Logged
1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck
ncsurfer
Inactive
Senior
USA, NC, Raleigh
Posts: 190
In good company!
Re: Water pump in, next A/C Bracket
«
Reply #13 on:
October 16, 2012, 02:42:45 »
Joe, Should I have used Permatex on the water pump bolts as well?
Also, I have the A/C bracket off and I am considering replacing the compressor with an up dated smaller compressor. Can you suggest one and would I need a different A/C bracket?
Thanks....
Logged
1970 280sl Horizon blue/navy, automatic
1973 450sl Silver/red, automatic
1985 280sl red/beige, 5 speed
1995 E320 Cab. Black/Cream, Auto
2016 Porsche Boxster Spyder
2008 Porsche Boxster RS 60 Spyder
1964 MB L1113 Firetruck
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Pagoda SL Group
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W113 Pagoda SL Group
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Drive train, fuel, suspension, steering & brakes
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Water pump in, next A/C Bracket