Pagoda SL Group

W113 Pagoda SL Group => Body, interior, paint, chrome, and cosmetic items => Topic started by: John Betsch - "SADIE" on December 21, 2019, 15:26:53

Title: 230SL clamp reference
Post by: John Betsch - "SADIE" on December 21, 2019, 15:26:53

My '65 230SL presently has a combination of the old style strap and Norma clamps which may or may not be correct where they are applied.  e.g.the air cleaner has a strap clamp which I believe should be Norma.  Every engine bay picture I have seen has a different mix/application of clamps. 

While I have read the clamp description in the Tech Manual, can anyone refer me to or possibly have an engine bay picture of a complete and correct use of the combined clamp types that they can point me to?  JB

Title: Re: 230SL clamp reference
Post by: mrfatboy on December 21, 2019, 16:03:45

Here are pics of 49er's original engine bay photos of his 250 SL and 280 SL that I use for reference for my car.

As I understand it all the Norma style clamps should have Phillips head screws in them except for the very early 230 SL's which have slotted.  However I have not 100% confirmed this. I look forward to a discussion on this😀

You can see in the photos there are at least 4 different clamps used around the engine bay. 

Heater hoses & Brake booster hose
Power steering hose
Radiator hose
Everything else

Title: Re: 230SL clamp reference
Post by: Shvegel on December 27, 2019, 17:22:04

The power steering return hose uses 2 special quick release screw clamps not used anywhere else.

Title: Re: 230SL clamp reference
Post by: Pawel66 on December 27, 2019, 19:27:14

They are not similar to those used on the coolant hose?

Title: Re: 230SL clamp reference
Post by: mbzse on December 27, 2019, 20:13:41

Quote from: Shvegel

The power steering return hose uses 2 special quick release screw clamps not used anywhere else

Quote from: Pawel66

They are not similar to those used on the coolant hose?

The quick release type looks like this

Title: Re: 230SL clamp reference
Post by: Pawel66 on December 27, 2019, 20:52:11

ok, this is the same one, I think, that is on the coolant hose, isn't it? Just different diameter. Or I am missing something?

Title: Re: 230SL clamp reference
Post by: mbzse on December 27, 2019, 21:06:29

Coolant hose clamp, Beru 9mm width strap.
This type also used on the rear axle for the large rubber bellows.

Title: Re: 230SL clamp reference
Post by: mbzse on December 27, 2019, 21:22:33

Quote from: mrfatboy

.../...You can see in the photos there are at least 4 different clamps used around the engine bay.../...

Yes..  please note however, the clamp types installed from factory changed significantly sometime in 1969 (280 SL).
The earlier, band type tightened with a twist pin were replaced by C-clamp type with M4 tightening screw. See attached

Title: Re: 230SL clamp reference
Post by: Pawel66 on December 28, 2019, 09:52:32

Quote from: mbzse on December 27, 2019, 21:06:29

Coolant hose clamp, Beru 9mm width strap

I see, thank you!

Title: Re: 230SL clamp reference
Post by: ja17 on December 28, 2019, 15:54:04

Some cars originally used that  power steering supply hose clamp below the thermostat housing (in a larger diameter).