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Search: Posts Made By: diplonasty
Forum: R/C107 SL/SLC Class   06-20-2019, 06:23 PM
Replies: 48
Views: 2,248
Posted By diplonasty
When I bought the car, it was running VERY RICH. ...

When I bought the car, it was running VERY RICH. The smell was impossible to ignore.
I have no idea how long it had been running this way but I do know it failed emissions MISERABLY.

Goody's...
Forum: R/C107 SL/SLC Class   06-20-2019, 06:01 PM
Replies: 48
Views: 2,248
Posted By diplonasty
So.... The very first thing I want to do is say...

So.... The very first thing I want to do is say THANK YOU to EVERYONE who took the time to post here and share their knowledge and experience. THANKS!

I think my plan of attack will be as...
Forum: R/C107 SL/SLC Class   06-19-2019, 06:14 PM
Replies: 48
Views: 2,248
Posted By diplonasty
Djenka; Please explain what a Thermostat...

Djenka;
Please explain what a Thermostat Changeover is? Does Changeover mean REPLACEMENT?
Forum: R/C107 SL/SLC Class   06-19-2019, 05:14 AM
Replies: 48
Views: 2,248
Posted By diplonasty
Would you please explain what you mean by...

Would you please explain what you mean by THERMOSTAT CHANGEOVER?
Forum: R/C107 SL/SLC Class   06-18-2019, 05:42 PM
Replies: 48
Views: 2,248
Posted By diplonasty
I can get a timing light and verify. He...

I can get a timing light and verify. He mentioned 27 degrees at 3000 RPM. Should both vacuum lines be connected or disconnected?
Forum: R/C107 SL/SLC Class   06-18-2019, 05:38 PM
Replies: 17
Views: 1,185
Posted By diplonasty
Do you disconnect the vacuum lines when setting...

Do you disconnect the vacuum lines when setting at 3000RPM? My distributor canister has 2 vacuum lines.
Forum: R/C107 SL/SLC Class   06-18-2019, 05:18 PM
Replies: 48
Views: 2,248
Posted By diplonasty
Hello Silver. I have not pointed the laser at...

Hello Silver.
I have not pointed the laser at the temp sender. I have pointed it at the thermostat housing and compared that to the top of the radiator. If the top of the radiator is close to...
Forum: R/C107 SL/SLC Class   06-18-2019, 03:47 PM
Replies: 48
Views: 2,248
Posted By diplonasty
The old bottom hose did not have a coil - neither...

The old bottom hose did not have a coil - neither doesthe new one I put in a few months ago. I never saw this in the parts list on AUTIHAUSAZ, FCPEURO, or anywhere else. Did these cars come with...
Forum: R/C107 SL/SLC Class   06-17-2019, 07:51 PM
Replies: 48
Views: 2,248
Posted By diplonasty
How high were the temps?

How high were the temps?
Forum: R/C107 SL/SLC Class   06-17-2019, 03:57 PM
Replies: 48
Views: 2,248
Posted By diplonasty
Thermostat

Dlenka;

Thank you for these images. I will check the bottom radiator hose the next time I take the car for a spin.
I do know that the top hose gets hot as hell and becomes pressurized. Would...
Forum: R/C107 SL/SLC Class   06-17-2019, 03:47 PM
Replies: 48
Views: 2,248
Posted By diplonasty
Aux Water Pump

Thank you for clarifying this for me. It certainly explains why I never found it.
Forum: R/C107 SL/SLC Class   06-17-2019, 05:26 AM
Replies: 48
Views: 2,248
Posted By diplonasty
Thanks. I installed a BEHR thermostat. Would a...

Thanks. I installed a BEHR thermostat. Would a WAHLER work better?
Also, I understand there may be an auxiliary water pump (https://www.autohausaz.com/pn/0008356964OE) - Where is this component...
Forum: R/C107 SL/SLC Class   06-16-2019, 10:15 AM
Replies: 48
Views: 2,248
Posted By diplonasty
Turning on the heat brings the temperature down a...

Turning on the heat brings the temperature down a bit but the hot air that comes out is INTOLERABLY hot.
I have tried both the Mercedes Blue and the green stuff. I observed no difference between...
Forum: R/C107 SL/SLC Class   06-16-2019, 10:08 AM
Replies: 48
Views: 2,248
Posted By diplonasty
Aux Fan

Funny thing that you mention the aux fan. I installed a new 212 self grounding switch. It works but it does not appear to help much. I even tried attaching a ground wire so that the fan would run...
Forum: R/C107 SL/SLC Class   06-16-2019, 09:47 AM
Replies: 48
Views: 2,248
Posted By diplonasty
The AC definitely causes the engine to run...

The AC definitely causes the engine to run hotter. I assumed that this would be because it is the original 42 year old compressor ( which was converted from R12 to R134 at some point) and that it...
Forum: R/C107 SL/SLC Class   06-16-2019, 09:34 AM
Replies: 48
Views: 2,248
Posted By diplonasty
Thank you. How much of a difference would you...

Thank you. How much of a difference would you say it would make?
Would going synthetic help as well?

One other thing that may be worth mentioning: I mentioned earlier that the temps start out...
Forum: R/C107 SL/SLC Class   06-16-2019, 07:58 AM
Replies: 48
Views: 2,248
Posted By diplonasty
Thank you for the responses. Goody's Automotive...

Thank you for the responses.
Goody's Automotive in Scottsdale set the ignition timing as well as the air/fuel mixture. They appear to be the GO TO shop for the 450SL in Arizona, so I have to assume...
Forum: R/C107 SL/SLC Class   06-15-2019, 07:17 PM
Replies: 48
Views: 2,248
Posted By diplonasty
Forgot to mention.... expansion tank and cap are...

Forgot to mention.... expansion tank and cap are in good shape - no pressure leaks.
Forum: R/C107 SL/SLC Class   06-15-2019, 06:58 PM
Replies: 48
Views: 2,248
Posted By diplonasty
Yet another 450SL running HOT thread

Hi. I've read so many threads here on the subject of 450SLs running hot.....
I have a 77 450SL with 57,000 miles. I am the third owner.

In the cooler months, this car has had some "good days"...
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