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> Door Stop Repair
mg911guy
post Oct 1 2005, 03:44 PM
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Hi All, I have my doors apart on my 70 914/4 and while im in there I want to repair both door stops.

I recall an article on repairing the "T" shaped piece by welding on new "bumps". There was even a picture of what the finished shape should be.

Does anyone know where I can find this article? I thought it was in a magazine? Like Panorama or the Mid-Engine-Views?

Thanks in Advance.

Mark
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McMark
post Oct 1 2005, 03:52 PM
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Are your bumps completely gone? Performance Products sells new aluminum rollers that cured most of the problems I've seen with door stops. Got any pictures of yours?
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mg911guy
post Oct 1 2005, 04:13 PM
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McMark

Thanks for the reply. Yes, they are almost gone. I have attached a photo.

Mark..


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Brando
post Oct 1 2005, 04:26 PM
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Yeeargghh... mine are worse than that...

How can we get new bars and rollers?
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McMark
post Oct 1 2005, 04:27 PM
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Wow. (IMG:http://www.914world.com/bbs2/html/emoticons/blink.gif) Thanks for the picture.

Sourcing good used ones would be my recommended course of action, as well as the roller replacement kit if yours are worn out.
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McMark
post Oct 1 2005, 04:28 PM
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PerfProd Roller Kit
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mg911guy
post Oct 1 2005, 04:32 PM
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Yeah, I found a 74 at Pick a Part last Sunday and forgot to check. I got the rear calipers though.

I just remember an article that had a life size drawing showing shape of both bumps. I have the welder ready to go. If I can find that article. I am searching through my magazines. I will let you know if I find it and maybe post a pic...

Thanks again Mark..
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bondo
post Oct 1 2005, 05:05 PM
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QUOTE (mg911guy @ Oct 1 2005, 03:32 PM)
Yeah, I found a 74 at Pick a Part last Sunday and forgot to check. I got the rear calipers though.

Ooh, which pick-a-part? What's left on the 74?
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mg911guy
post Oct 1 2005, 05:28 PM
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The Pick a Part in Sun Valley (SFV).
It still had the engine and tranny. No intake. 1.8L.
Side shift linkage was gone.
Front and Rear bumpers, doors, Trashed interior.
Head light assy's were gone no front trunk lid. But the rear was there.
Front Bilsteins were there w rotors and calipers.
No Sway Bars.
Gas tank was gone.
Engine lid was ripped out.
No muffler but the exchangers were there.
All fenders were there.
Windshield was there.
I cant remember if the rear glass was there.

Hope this helps.
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bondo
post Oct 1 2005, 10:01 PM
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Cool, thanks. It'll be a bit before I'm down south, but I'll check it out if I can.. sounds like there are some good parts left.
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jd74914
post Oct 2 2005, 09:12 AM
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QUOTE (McMark @ Oct 1 2005, 05:28 PM)
PerfProd Roller Kit

Just fix the rollers with some washers. Its easy and cheap, and the steel will never break. While your in there I would also suggest fixed the bolt pivot if it out of line at all. I'd suggest doing this while its out, cause its a b*tch to got back in.

Before:


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jd74914
post Oct 2 2005, 09:13 AM
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After with steel replacement.


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McMark
post Oct 2 2005, 10:20 AM
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Steel washers rubbing against an aluminum piece doesn't sound like a recipe for longevity. (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif)
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davesprinkle
post Oct 3 2005, 08:09 PM
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When I found that the door detent cams were NLA, I had a few reproductions machined. They differ in only two ways from the OE piece:
1. They don't have the tiny grooved serations along the "bumpy" side of the cam. Presumably, Porsche added these to provide some damping when plastic roller ran against them. The serations were worn completely away on the driver's side cam, and were only barely visible on the passenger cam. In any case, their presence or absence doesn't materially affect the primary purpose of the cam.
2. The repro cams have a second hole at the "head" of the cam, added for ease of machining. It doesn't affect the function of the piece and isn't visible when the door is assembled.

I've been considering having a production run of these made, assuming there is enough interest. What do you think?






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Grimstead
post Oct 3 2005, 10:40 PM
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QUOTE (davesprinkle @ Oct 3 2005, 07:09 PM)
When I found that the door detent cams were NLA, I had a few reproductions machined. They differ in only two ways from the OE piece:
1. They don't have the tiny grooved serations along the "bumpy" side of the cam. Presumably, Porsche added these to provide some damping when plastic roller ran against them. The serations were worn completely away on the driver's side cam, and were only barely visible on the passenger cam. In any case, their presence or absence doesn't materially affect the primary purpose of the cam.
2. The repro cams have a second hole at the "head" of the cam, added for ease of machining. It doesn't affect the function of the piece and isn't visible when the door is assembled.

I've been considering having a production run of these made, assuming there is enough interest. What do you think?

How much do you think? (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif)
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jsteele22
post Oct 4 2005, 10:07 AM
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Ditto : How much ?


I think there would be some demand just for a replacement set of door stops that isn't made out of brittle pot metal. As long as the price is reasonable, say $15-20.
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mightyohm
post Oct 4 2005, 10:45 AM
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I think you could sell those!
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davesprinkle
post Oct 4 2005, 03:04 PM
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OK. I'll pursue a quote on a small production run of the door detent cams. Stay tuned; I should have an answer in about a week or so. I'm not dodging the cost question; I just can't commit to a price until I know what my vendor will charge.

What about rollers? Anyone interested in replacements machined out of a proper hard plastic like Delrin?
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thesey914
post Oct 4 2005, 03:52 PM
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I've just Stripped &cleaned up mine. I need a set.
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Gint
post Oct 4 2005, 04:38 PM
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I could use a set myself.
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