Author Topic: hood prop  (Read 6005 times)


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hood prop
« on: March 13, 2003, 09:10:21 »
I replaced the hood prop on a 230sl (the prop it replaced was a stick), now the hood stays open only about 45 degrees, maybe less.  Should the prop rod be 'wound' like a clock spring to increase tension?  I have already figured out that the plasic receiver that  the prop rests in should be reversed...the prop slipped out and the hood almost chopped  a few fingers.
230sl 4sp with guillotine option


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Re: hood prop
« Reply #1 on: March 13, 2003, 10:58:31 »
   It is my understandingthat your car is not unique and many of us have the "guillotine" option. There should be quite a bit of tension on the hood prop rod. Even with that mine would slip out at times. I made a minor modification to my car to avoid finger chops or head smashes. The receiver to the hood prop on my car is plastic. The rod has a rounded section the rides in the receiver. I drilled a hole in the reciever and if I place a nail in the hole while the hood is up it is impossible to lower the hood. My fingers and head have not been threatened since.
1969 280SL guillotine safety option


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Re: hood prop
« Reply #2 on: March 13, 2003, 11:34:41 »
I would think that if your hood drops closed on it's own, then there is a problem.  It should not do that.  Yes, there should be quite a bit of tension on the prop, but I can't say how much.  Perhaps someone could provide proper installation instructions for a new spring/prop and guide?

See this thread http://index.php?topic=92 for pics of my old and working hood prop.

1966 230SL Euro
1994 E420
« Last Edit: March 13, 2003, 11:38:24 by rwmastel »
Pagoda Technical Manual, please contribute:
1966 230SL (waiting patiently for me), 2006 Jeep Wrangler Rubicon (off-roading), 2017 C43 AMG (daily driver)
1980 450SL (for sale)
1997 E300D (sold in 2022), 2006 C230 (sold in 2015), 1994 E420 (sold in 2007)

Cees Klumper

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Re: hood prop
« Reply #3 on: March 13, 2003, 16:14:41 »
The prop on my hood was guillotine-prone because the plastic receiver was worn a bit. You can adjust it back and forth, so that is one option, but since this did not do the trick, I decided to take it off and install it the other way around (it's symmetrically shaped). Now the hood stays up very well.

Btw I have been advised not to simply drop the hood to close it - rather, we are supposed to lower the hood slowly by hand until it rests on the keeper, then use the heavy hand and press it closed firmly. Dropping it as a matter of practice supposedly is bad for the hood/paint? Seemed to make sense at the time, so that's how I've been doing it since.


white 1969 280 SL
Cees Klumper
1969 Mercedes 280 SL automatic cream white
1961 Alfa Romeo Giulietta Sprint Coupe 1600 red
1972 Lancia Fulvia Coupe 1.3 Rosso Corsa "Luigi"
1983 Porsche 944 2.5 Pasadena Yellow
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