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W123 rad options to hide/replace overflow bottle
bricktron Offline
'77 240D
***


Posts: 174
Joined: Dec 2011
Location: LAOS
#1
W123 rad options to hide/replace overflow bottle
want to stop seeing the overflow bottle. along with staying in cool climates, i am looking into a rad swap, plus either a siphon recovery bottle or that fancy non-expansive coolant they now have.

i have a turbo 300D setup right now. tried to put in a 240D radiator and nonpressurized overflow bottle, but didn't realize the oil coolers were different too, so i had to stop until i get a 240D cooler.

do all the rads have the extra lower section for (i think) auto trans? has anyone come up with another use for it?

are NA 300D rads/coolers different from the 240D ones? any other candidates to consider?

english red rat rod 1977 240D, OM617.952 burning B99.9, iron 4-speed & 2.88 diff, 195/60/R14 on alloys, 5mph bumpers, battery in the trunk, 25mm swaybar, 4x ECE H4 lamps, double brake lamps, deleted sunroof, export zoll & california blue plates




08-07-2014, 12:55 AM
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Simpler=Better Offline
PORTED HEAD
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Posts: 2,127
Joined: Jul 2008
Location: Baltimore, MD
#2
RE: W123 rad options to hide/replace overflow bottle
I always cap the transmission cooler holes to keep junk out. Some offroad guys use them to heat water on the campsite for bathing Smile

You can get a radiator cap that splices into the large radiator hose, allowing you to use a regular hidden non-pressurized coolant bottle.

With an electric fan, people have said that it rarely kicks on-so the assumption is the standard radiator is properly sized.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan Wrote:I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
08-07-2014, 12:40 PM
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bricktron Offline
'77 240D
***


Posts: 174
Joined: Dec 2011
Location: LAOS
#3
RE: W123 rad options to hide/replace overflow bottle
right on. that rad cap is just what i need. i looked for such a part before without success and i guess i will look again as it's so much simpler {tm}. i am guessing the hose splice thing provides a fill stem as well as a pressure valve - never sure how i could fill this radiator without the pressure bottle.

english red rat rod 1977 240D, OM617.952 burning B99.9, iron 4-speed & 2.88 diff, 195/60/R14 on alloys, 5mph bumpers, battery in the trunk, 25mm swaybar, 4x ECE H4 lamps, double brake lamps, deleted sunroof, export zoll & california blue plates




08-08-2014, 02:00 AM
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Simpler=Better Offline
PORTED HEAD
*****


Posts: 2,127
Joined: Jul 2008
Location: Baltimore, MD
#4
RE: W123 rad options to hide/replace overflow bottle
There are multiple options and retailers, here's jegs cap:
http://www.jegs.com/i/JEGS-Performance-P...8/10002/-1

[Image: 555-53098.jpg]
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan Wrote:I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
08-08-2014, 07:52 AM
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bricktron Offline
'77 240D
***


Posts: 174
Joined: Dec 2011
Location: LAOS
#5
RE: W123 rad options to hide/replace overflow bottle
ordering. thanks S=B.

english red rat rod 1977 240D, OM617.952 burning B99.9, iron 4-speed & 2.88 diff, 195/60/R14 on alloys, 5mph bumpers, battery in the trunk, 25mm swaybar, 4x ECE H4 lamps, double brake lamps, deleted sunroof, export zoll & california blue plates




08-08-2014, 09:14 PM
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bricktron Offline
'77 240D
***


Posts: 174
Joined: Dec 2011
Location: LAOS
#6
RE: W123 rad options to hide/replace overflow bottle
i found a filler from a dodge which i think will work. already have one of these:
http://www.jegs.com/i/JEGS+Performance+P...0/10002/-1
[Image: 555-511000.jpg]

can anyone tell me how the intake and outlet are supposed to be plumbed up to the hose filler barb? i thought there was going to be just one hose for both directions of coolant flow (i.e. either overflowing or being sucked back to the rad, depending on temperature).

english red rat rod 1977 240D, OM617.952 burning B99.9, iron 4-speed & 2.88 diff, 195/60/R14 on alloys, 5mph bumpers, battery in the trunk, 25mm swaybar, 4x ECE H4 lamps, double brake lamps, deleted sunroof, export zoll & california blue plates




08-13-2014, 12:45 PM
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Simpler=Better Offline
PORTED HEAD
*****


Posts: 2,127
Joined: Jul 2008
Location: Baltimore, MD
#7
RE: W123 rad options to hide/replace overflow bottle
Plumb the bottom one to your overflow port, and the top one somewhere it can vent.
Newbie-read this: Cheap Tricks
617.952-220k-Getting built up
larsalan Wrote:I guess I need to look at this stupid ass drip shit. What you have to like mess with those elements on the pump? What a fucking hassle. then use some wire to hold the throttle open or some shit?
08-13-2014, 01:32 PM
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bricktron Offline
'77 240D
***


Posts: 174
Joined: Dec 2011
Location: LAOS
#8
RE: W123 rad options to hide/replace overflow bottle
so complicated!! thanks again.

english red rat rod 1977 240D, OM617.952 burning B99.9, iron 4-speed & 2.88 diff, 195/60/R14 on alloys, 5mph bumpers, battery in the trunk, 25mm swaybar, 4x ECE H4 lamps, double brake lamps, deleted sunroof, export zoll & california blue plates




08-13-2014, 07:05 PM
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