DVR'd the episode last night. Finished it today, but won't spoil it. W123 did well for itself as expected.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

I don't have cable television. Is there an online source to watch this episode on?

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'81 300SD

Yes, freetv-video-online.me has the newest episodes of Top Gear USA.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

I could not understand why I disliked the USA version. Could it be that the U.S. hosts are silly and sometimes stupid? Well that would apply to the UK version, too.
Your comments help. For some reason I care about the UK hosts and I don't connect at all with the USA guys.

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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags

For perspective, look at these.

The 10 Worst High Speed Car Crashes | WreckedExotics.com

Top 10 Most Expensive Car Accidents | Ferrari, Bugatti, McLaren F1 and Rowan Atkinson

SPOILER ALERT: My following post asks a question about the details of the episode. If you don't want to know anything that occurred in the episode before watching it, please don't read this.

Can anyone help me understand how the w123 ran for so long without a fan belt? I have never owned a w123, but I assume the fan belt drives the water pump. Without a water pump, I would think the water in the block would boil within a very short amount of time. They kept implying that as long as they had airflow to the radiator, the w123 would not overheat. But without a water pump, I would think it would overheat regardless of air flow over the radiator. Any thoughts?

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1968 220D, w115, /8, OM615, Automatic transmission.
My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).

There are many possible reasons, climate, condition, etc. There is a thread on this subject here. Basically, the airflow through the radiator, free wheels the fan, causing the waterpump to circulate coolant.

A lost fan belt and the decision to drive it home

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

were those 2nd gen w126 seats and steering wheel? did the honda get it's water pump belt cut? if not, that wasn't fair! i wonder why the engine died? maybe the IP lost good lubrication

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83 300CD- sanden, dual p/f condensers, 160a alternator, ect
91 300TD- 722.6, #22 head, 3.5L IP, w140 manifolds, ect

I don't think a honda will run with the belt driving it's water pump cut... It's the timing belt on most Hondas...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Coolant will circulate by thermosypon and a bit of fan windmilling (If the fan is attached to the water pump and not just a bearing block.) . This is where hot water rises ( through the upper hose ) and cold(er) water sinks ( as is passes through the rad.) The Ford model T didn't come with a water pump through it was a popular aftermarket add on.

A diesel at low load stays coldish because so much air is passing through the cylinders. ( This is also why idling a diesel leads to wet stacking .)

If this was done in England, it is cold and damp further assisting cooling.

However, at higher loads, more coolant flow is needed and the head needs to be pressurized to prevent nucleate boiling. The thermostat provides a restriction causing dynamic pressure to rise.

I do some work for a scrap yard when their guys get stuck working on a generator / electrical / major engine issue. One of the light towers would _occasionaly_ shut down but only when it was not windy ( they are on a plateu ) Turns out they changed fan the fan belt, didn't check the size of the old one. New belt was too long, adjuster topped out, fan / water pump would not spin with engine running. When it was windy, air would flow through the rad keeping temps below safety shutdown. They had 2 of the same units, the other one was turned 90* to prevailing winds and would shutdown after some run time regardless of wind speed.

Oooops, I forgot about that. Used to our engines too much haha

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83 300CD- sanden, dual p/f condensers, 160a alternator, ect
91 300TD- 722.6, #22 head, 3.5L IP, w140 manifolds, ect

Have a look at the thread I just started

And you thought the blue Vs green coolant wars were bad. . .

I love the UK version.

As far as I am concerned Tanner should be in jail for a very long time for all the stoooopid reckless things he has done on public roads.

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1999 Mercedes E300TD daily driver sold at 238K miles 106K miles were mine, rust worm got it :-(
2006 Mercedes CDI new daily driver! 56,000 miles May 2016 now 85,625 Apr 2018 and Apr 2019 101,000 miles Apr 2020 109,875. March 2024 135,250

Nope. Looked like early 90s leather seats from a W124. Only thing I could think of that would swap over without too much effort.

The US version is really cheesy and mediocre. I like UK, but they also have some crappy comedy from time to time. Overall, a lot better though.

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

Top Gear America - [05x07] - 2014.08.03 by husyk - Car Videos on StreetFire

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