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Author Topic: Heater core valve  (Read 3391 times)

vande17941

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Heater core valve
« on: September 27, 2017, 15:47:24 »
I have noticed that my heater core valve isn't closing all the way and needs the little adjustment linkage rids adjusted (the one I can see through the firewall with the rubber plug removed.

It looks like absolute hell trying to figure out how to adjust those heater linkage rods through that tiny hole. Does anybody have any tips or tricks?
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'66 USA (1967 model Year) 230sl, 4-speed Manual, Driven Like a Real Car! Set up with KYB Stiffer Shocks, and Motor Mounts w Urethane Inserts Underneath, 3-point Belts, Headrests Installed 🚗

1986 560sl Cabernet & Palomino (not recommended)

2001 SLK320 Sport AMG Silver & Black

thelews

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Re: Heater core valve
« Reply #1 on: September 27, 2017, 17:57:53 »
If I recall, pop the ball off the valve and then pull the rod through the hole to adjust?  If not easy to pull, rotate the control in the car.
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John - Wisconsin
1967 Early 250 SL Red/Caviar, Manual #1543
1961 190 SL 23K miles
1964 Porsche 356
1970 Porsche 911E
1991 BMW 318is
1966 Jaguar XKE
1971 Alfa Romeo GTV 1750

vande17941

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Re: Heater core valve
« Reply #2 on: September 29, 2017, 07:13:56 »
Well I can reach about anything there is in this car....but working through that little hole and getting that thing to where I can adjust it does NOT look fun.
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'66 USA (1967 model Year) 230sl, 4-speed Manual, Driven Like a Real Car! Set up with KYB Stiffer Shocks, and Motor Mounts w Urethane Inserts Underneath, 3-point Belts, Headrests Installed 🚗

1986 560sl Cabernet & Palomino (not recommended)

2001 SLK320 Sport AMG Silver & Black

Jonny B

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Re: Heater core valve
« Reply #3 on: September 29, 2017, 16:22:04 »
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Jonny B
1967 250 SL Auto, DB 568
1970 280 SL Auto, DB 904
1966 Morris Mini Minor

vande17941

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Re: Heater core valve
« Reply #4 on: September 30, 2017, 14:57:34 »
Great info there...I must have been blind not to find that page. Will give it a whirl, though it doesn't look fun.
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'66 USA (1967 model Year) 230sl, 4-speed Manual, Driven Like a Real Car! Set up with KYB Stiffer Shocks, and Motor Mounts w Urethane Inserts Underneath, 3-point Belts, Headrests Installed 🚗

1986 560sl Cabernet & Palomino (not recommended)

2001 SLK320 Sport AMG Silver & Black

Jonny B

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Re: Heater core valve
« Reply #5 on: October 01, 2017, 16:09:03 »
Believe me the tech manual item is a piece of cake compared to the alternative - pulling out the heater core. I have the bruised knuckles and strained back to prove it. And not only was I a punishment glutton once, I did it twice! Once on my car and once for a friend.
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Jonny B
1967 250 SL Auto, DB 568
1970 280 SL Auto, DB 904
1966 Morris Mini Minor

vande17941

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Re: Heater core valve
« Reply #6 on: October 01, 2017, 21:01:15 »
Pulling the heater core looks like it would be the most terrifying job on the car? I hope and pray mine never leaks.
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'66 USA (1967 model Year) 230sl, 4-speed Manual, Driven Like a Real Car! Set up with KYB Stiffer Shocks, and Motor Mounts w Urethane Inserts Underneath, 3-point Belts, Headrests Installed 🚗

1986 560sl Cabernet & Palomino (not recommended)

2001 SLK320 Sport AMG Silver & Black
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