It has been my experience that if the core is clogged, a citric acid flush is
not going to accomplish much, ad the solution can't get to the clogged portion
of the core. That is, it can't flow past or through the clogged areas.
It may clear out the parts that are partially clogged, but the total
You can easily confirm this if you get an IR thermometer and measure
the temperature of both the inlet and outlet of the radiator when the
engine is warmed up. You should see a noticeable temperature drop
from inlet to outlet, even with the car sitting still and idling. A
good justification to
ication to
> buy a cheap HF IR thermometer.
>
> What you describe is a classic example of a clogged radiator from my
> experience. And I've had a couple of them in both 123 and 126 chassis cars.
>
> Dan
>
>
> ________________
> From: Curt Raymond
I expect you're right, it hadn't occurred to me to try the IR thermometer, I've
got one, will give it a shot.
-Curt
Date: Sat, 21 May 2011 17:25:17 -0700 (PDT)
From: LWB250
To: Mercedes Discussion List
Subject: Re: [MBZ] Hot 190D
Message-ID: <363589.99351...@web65705.
21, 2011 8:10 PM
Subject: Re: [MBZ] Hot 190D
Doesn't seem to be speed dependent, does seem to be load dependent.
Specifically if I'm coming up an incline in high gear with low rpms...
-Curt
Date: Sat, 21 May 2011 11:31:18 -0700 (PDT)
From: LWB250
To: Mercedes Discussion List
Subject
Doesn't seem to be speed dependent, does seem to be load dependent.
Specifically if I'm coming up an incline in high gear with low rpms...
-Curt
Date: Sat, 21 May 2011 11:31:18 -0700 (PDT)
From: LWB250
To: Mercedes Discussion List
Subject: Re: [MBZ] Hot 190D
Message-ID: &l
ot;Kaleb C. Striplin"
To: Mercedes Discussion List
Subject: Re: [MBZ] Hot 190D
Message-ID:
Content-Type: text/plain;charset=us-ascii
With hot and running look around for leaks. As for why it is running hot i
would guess the radiator is clogged. Does the electric fan clutch
Another thing to consider - does it run hot at or above a certain speed? If
so, it's clogged.
Dan
From: LWB250
To: Mercedes Discussion List
Sent: Saturday, May 21, 2011 2:29 PM
Subject: Re: [MBZ] Hot 190D
If you pull the radiator, just stick a garden hose in the inlet and see how
ssion List
Sent: Saturday, May 21, 2011 10:19 AM
Subject: Re: [MBZ] Hot 190D
> So my '84 190D has always run hot, the needle would go up to around 95 and
> drop back down and up and down slowly while driving but it was never an
> issue, now with the arrival of warmer weather it seems
So my '84 190D has always run hot, the needle would go up to around 95
and drop back down and up and down slowly while driving but it was
never an issue, now with the arrival of warmer weather it seems to be
getting worse.
If it's not the thermostat, chances are that it's the radiator.
Try a c
Pressure test -- leaks are obvious by drips or hissing.
I would guess you do not have a functioning main fan -- they have an
electric clutch on that model, and you are only getting cooling from
the electric fan, hence heating to 95C or so up and down.
If the fans work properly, and there ar
With hot and running look around for leaks. As for why it is running hot i
would guess the radiator is clogged. Does the electric fan clutch kick in?
Sent from my iPhone
On May 21, 2011, at 8:34 AM, Curt Raymond wrote:
> So my '84 190D has always run hot, the needle would go up to around 95 an
12 matches
Mail list logo
