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German Blood
 
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Frunk & rear decklid holding shocks

OK so I have replaced ALL frunk and rear decklid holder upper thingys with new ones from here and they don't hold stuff up. Is there a check valve plug on them or something I am missing? Seems odd a simple pnuematic shock would be finicky but what do I know??

Anybody have input?

Old 09-08-2025, 04:06 AM
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what kind of hood shocks have you used ?
Ivan
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1985 911 with original 502 191 miles...808 198 km
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Old 09-08-2025, 04:20 AM
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Quote:
Originally Posted by proporsche View Post
what kind of hood shocks have you used ?
Ivan

Exactly what I was about to ask him. That's weird
Old 09-08-2025, 08:54 AM
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I bought a used set of these from a forum member, they work well but don't "pop" when the latch release is actuated so you need to make sure that the adjustments are spot on. I added a little string to the frunk late as a safety measure.

https://www.rennline.com/rennline-fully-mechanical-hood-strut-sku-e187/
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Old 09-08-2025, 08:54 AM
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Any chance these were installed in the wrong direction ?
The beefier piston section should be attached at the hinges and the thinner rod goes to the stationary or fixed body mount.
Old 09-08-2025, 09:59 AM
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Quote:
Originally Posted by EC900 View Post
Any chance these were installed in the wrong direction ?
The beefier piston section should be attached at the hinges and the thinner rod goes to the stationary or fixed body mount.
I will check. I got the struts here so they should be good to go brand new.
Old 10-09-2025, 07:54 AM
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Quote:
Originally Posted by EC900 View Post
Any chance these were installed in the wrong direction ?
The beefier piston section should be attached at the hinges and the thinner rod goes to the stationary or fixed body mount.
I always thought the beefy part went on top. Where the force is applied
Old 10-10-2025, 12:43 PM
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I think you are both referring to the same orientation. Thick part on top, on the articulated panel. Thin part attached to the car body. IIRC, it's so the oil will pool around the seal and keep it lubricated.
Old 10-10-2025, 02:32 PM
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Thick portion of the struts to upward. Here's pretty good video with some tool tips to help the painful task of installing new ones. The driver's side is a major PITA!

https://www.youtube.com/watch?v=5kcshy-u3Wo
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Old 10-11-2025, 12:31 PM
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Quote:
Originally Posted by Synchro Joe View Post
Thick portion of the struts to upward. Here's pretty good video with some tool tips to help the painful task of installing new ones. The driver's side is a major PITA!

https://www.youtube.com/watch?v=5kcshy-u3Wo
well it is a PITA if you are using the wrong tools.For inserting the pin in from outside in in order to be able to put in the safety clip i use magnet,no pliers at all.Also it much easier to insert the pin from inside out with or without using the safety clip.The pin will never leave the positiion even without the clip it is on constant pressure so it does not leave.Plus the dude on the video has no cover on the fender and the button on his jeans will for sure make some scratches;-)))

Ivan
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Old 10-11-2025, 11:29 PM
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Quote:
Originally Posted by Germanblood View Post
OK so I have replaced ALL frunk and rear decklid holder upper thingys with new ones from here and they don't hold stuff up. Is there a check valve plug on them or something I am missing? Seems odd a simple pnuematic shock would be finicky but what do I know??

Anybody have input?
Strange indeed, bad batch perhaps ?
Old 10-14-2025, 09:14 AM
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I've been through this before, replaced the struts with the heavy duty versions, only to have the frunk fall on my head again after a few years. The mechanical ones (referenced in my earlier post) work great!
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Old 10-14-2025, 09:31 AM
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Quote:
Originally Posted by mike635 View Post
I've been through this before, replaced the struts with the heavy duty versions, only to have the frunk fall on my head again after a few years. The mechanical ones (referenced in my earlier post) work great!
As long as no one tries to "force" the hood shut !
Old 10-14-2025, 12:34 PM
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Hi
Sounds like defective product ?
Warranty claim ?
Don't forget Pelican Parts LIFETIME REPLACEMENT!
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https://forums.pelicanparts.com/porsche-911-technical-forum/1139230-introducing-pelican-parts-lifetime-replacement.html
Old 10-14-2025, 01:37 PM
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Quote:
Originally Posted by mike635 View Post
I bought a used set of these from a forum member, they work well but don't "pop" when the latch release is actuated so you need to make sure that the adjustments are spot on. I added a little string to the frunk late as a safety measure.

https://www.rennline.com/rennline-fully-mechanical-hood-strut-sku-e187/
So, I too went with the Rennline shocks, and found that they held up okay but did not take on any of the weight load until locked in place. So for example if you dropped the front lid from the top, it would slam way too hard. I ended up with one Rennline AND ONE REGULAR shock. It’s a great solution, nd the one regular can be a bad one and it works fine for helping up and down.
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Old 10-14-2025, 02:59 PM
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I tried the one Rennline and one regular shock/strut too. It worked, but the Rennline strut holds the frunk lid about 6-8" lower than the pneumatic supports. I was always whacking the back of my head on the hood or latch.
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Old 10-14-2025, 11:35 PM
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Interesting idea to use one Rennline and one gas shock, might help with the missing "pop" when the latch is pulled. I've never been concerned with forcing the frunk closed, I'm the only one who opens and closes it and know the trick to get it unlatched. I do agree that you need to be careful once it's unlatched, the full weight of the frunk will come down if you don't hang on and let it down carefully.

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Old 10-15-2025, 08:45 AM
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