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Shop / Re: Zebrano wheel
« Last post by dima on Yesterday at 04:10 PM »
Фото
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Mechanicals / Head gasket troubleshooting
« Last post by Mergyver on Yesterday at 11:14 AM »
Looking for advice from the brain trust.

I have a 1979 300SD 102,000 miles, om617 engine.

Noticed a coolant leak from the top hose where it attaches to the radiator. The odd thing is the engine was cold. It had not been run in about 10 hours. I squeezed the hose and it was hard (under pressure). I took off the catch tank cap and a lot of pressure was released. I started thinking I had a bad head gasket.

I ran a combustion gas test on the tank and it came up positive. I did a pressure test on the coolant system while the engine was hot. The pressure leaked down from 10 PSI to 5 PSI over the course of a half hour. I am still thinking head gasket.

Now it starts to get odd. I ran a compression test (while the engine was cold with all injectors out) and came up with 302,305,300,301,303. All appear good. So I am thinking the gasket is fine,

The car does not overheat ( temp gauge stays a hair above 174). Changed the oil and did not see any sign of coolant. No signs of oil in the cooling system.

I recently replaced the thermostat. I found several intake/exhaust manifold nuts were loose, I recently tightened those. I rebuilt the turbo.

So what do you guys think. Could the compression test be invalid because the engine was cold? Could something else be pressurizing the coolant system? Maybe a crack in the head that opens when hot and closes when cold? Should I pull the head? The car is a keeper/daily driver, if I have a head issue I would like to solve it before I damage the engine any more.

As always I appreciate all thoughts.
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Shop / Re: Zebrano wheel
« Last post by dima on Yesterday at 09:08 AM »
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4
Interiors & Exteriors / Re: Double Din Radio
« Last post by revilla on Yesterday at 01:59 AM »
I don't understand this fascination with pricing Becker radios so high.  They made millions of radios, and the Mexico Stereo is one of, if not the most, mass produced models of Becker radios ever made.  Thousands and thousands of them are still in existence, and supply far outweighs demand.  Then again, $300 to have one rebuilt and made bluetooth ready is a really good price. 

If your Becker is crusty then it's in need of repair.   Though, if you want to stay period correct but have good sound then buy a period correct Blaupunkt or Grundig.  They offer superior sound quality over Becker, and always did.  (up to a certain point)  And be sure to use paper coned speakers with the correct impedance match for maximum sound quality.  The best sound systems in the world use paper coned speakers!  :) 

Stan, in your last comment you stated  "The more you invest, the more you're investing in resale-value."  That's true, but only up to a point, and that comes rather soon on a W116.  We may spend $50,000-$80,000 to properly restore a W116 (if not more), but when it comes time to sell we'll only get a third or below of what we have invested in it.  So putting more into our cars than they'll ever be worth is something that has to be accepted.  We have one life.  Enjoy it.  :)

Ditto here. The W116s are these days to restore/repair/drive and enjoy... if one insists to make these cars a “business case”  today sorry wrong brand/period/model. It will always be a red ROI never reaching a selling price to recover the usual 5-digits investment! If, on the other hand, one drives and enjoys any W116 this is immo the car to have (not the car to invest).

Who knows, the market is capricious though, maybe our grandchildren will see a Return, but I doubt they will be able to drive them in 50 more years with all the restrictions being developed now globally.
In conclusion, Joy and Passion should be the currencies to build your business case. If so, it’ll be a VERY positive ROI.


Regarding the stereo subject.

If you insist to install a modern unit with all the functionalities, would you consider this folding screen option? It would save the ashtray and getting too invasive/destructive as it would fit in the current space you have your stereo now. When the screen is folded down is discreet at least, despite not being period correct.

Cheers everyone

https://youtu.be/4YTxz2oqb-Q
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Shop / Re: new parts available from MB
« Last post by s class on Yesterday at 01:18 AM »
Thats good news.

For what its worth, I recently ordered a new gas tank for a customer's 450SL 107, and the cost was also around 1800 euros. 
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Shop / Re: Wtb right side wood vent
« Last post by UTn_boy on 16 August 2019, 07:20 PM »
What exactly are you referring to?  There were no wood vents in a W116.  Are you maybe talking about the wood that goes around the right side dash vent?  If so, we need to know the year of your car, as well as the veneer that your car has on its wood.......Zebrano, Brazilian Rosewood, Macassar Ebony, or Walnut Root?  Early cars had different backing on the wood pieces, as well as different veneers.  The later cars (after early 1974) had only Zebrano and Walnut Root. 
7
Interiors & Exteriors / Re: Double Din Radio
« Last post by UTn_boy on 16 August 2019, 06:49 PM »
I don't understand this fascination with pricing Becker radios so high.  They made millions of radios, and the Mexico Stereo is one of, if not the most, mass produced models of Becker radios ever made.  Thousands and thousands of them are still in existence, and supply far outweighs demand.  Then again, $300 to have one rebuilt and made bluetooth ready is a really good price. 

If your Becker is crusty then it's in need of repair.   Though, if you want to stay period correct but have good sound then buy a period correct Blaupunkt or Grundig.  They offer superior sound quality over Becker, and always did.  (up to a certain point)  And be sure to use paper coned speakers with the correct impedance match for maximum sound quality.  The best sound systems in the world use paper coned speakers!  :) 

Stan, in your last comment you stated  "The more you invest, the more you're investing in resale-value."  That's true, but only up to a point, and that comes rather soon on a W116.  We may spend $50,000-$80,000 to properly restore a W116 (if not more), but when it comes time to sell we'll only get a third or below of what we have invested in it.  So putting more into our cars than they'll ever be worth is something that has to be accepted.  We have one life.  Enjoy it.  :)
8
Interiors & Exteriors / Re: Double Din Radio
« Last post by Diesel 617 on 16 August 2019, 06:35 PM »
Just by chance I was over at peachparts and saw someone selling this radio for  250$
http://www.peachparts.com/shopforum/mercedes-benz-used-parts-sale-wanted/377953-fs-becker-europa-model-466-a.html

The gentleman I have rebuild my electronics is: https://www.peachparts.com/shopforum/tech-help/318312-cruise-control-amplifier-diagnostics-amplifier-repair.html

He has rebuilt my dash clock (woot!), radio, cruse control amplifier (works flawlessly and holds the speed!) and has inspected numerous relays I have sent him and has even been able to rebuild some of them. I highly recommend him, very pleasant to deal with as well.
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Test Drive / Re: Former parts source no longer dried up.
« Last post by floyd111 on 16 August 2019, 06:27 PM »
I looked yesterday and there was a near perfect euro hazard warning switch.  Of course it was gone today when I went to buy it :(

Just keep looking.. I have left about a dozen behind for others to find, and that was at the end of the drought. There must be many more now, NOS and 2nd hand. These are actually so abundant, that people may not even bother list them anymore, so cold-calling volume-sellers should be most effective.
Maybe try and find a second keyword?
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Test Drive / Re: Former parts source no longer dried up.
« Last post by floyd111 on 16 August 2019, 06:23 PM »
No, besides having bought that NOS engine, there's been 0 movement in 10 months.. Still haven't found anyone to re-assemble the car with NOS parts.

BTW.. another source that's back : Quoka.de.
Lots of W116 parts there now, vs 2 years ago. (-when I stopped buying everything)
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