![]() |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
![]() |
Britain Smith |
![]()
Post
#1
|
Nano Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,354 Joined: 27-February 03 From: Hillsboro, OR Member No.: 364 ![]() |
I went through the painful process of replacing both rear wheel bearings and CV joints this last weekend and to do this I decided to remove the heat exchangers. It was actually a lot less painful to remove the heat exchangers that I thought it would be, however I now think I may have an exhaust leak. I was surprised that when I removed my heat exchangers, there were no copper gaskets or anything. They did have copper exhaust nuts however, which probably is the reason they came off so easily.
So, should I order up some copper exhaust gaskets and install them with some new copper exhaust nuts? Do orignal 1.7L motors supposed to have the copper gaskets there? What does and exhaust leak on these motors sound like exactly? If I have one, it is very slight cause I can hear something but it is hard to distinguish over the valve ticking. Any assistance? -Britain |
![]() ![]() |
Chris Pincetich |
![]()
Post
#2
|
B-) ![]() ![]() ![]() ![]() Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California ![]() |
I just replaced my 1.7 HEs and didn't see the gaskets in there either - BUT they were there! You can feel them, with a flashlight you MIGHT see them, but they are hard to see. I had some extra metal from battery hold-down strap project and bent the tip 90 deg, filed/grinded sharp edge, and used my new tool to delicately pry the gaskets out.
Sealing the leaks - I was SUPER nervous torquing the nuts tight. My studs had lots of corrosion and some even twisted out and were screwed back in. My torque wrench set at 20 lbs still felt super stiff when I tested it on a wheel lug, so I used a small socket handle instead. I tightened gingerly, drove a day, tightened again, drove, and every time I got them a little tighter. However, now they are on REAL tight (not sure exact torque) and I still feel hot air comming down from the heads as if they leak a little - IS THIS NORMAL? I think they still leak a tad but barely. (IMG:style_emoticons/default/beerchug.gif) |
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 6th July 2025 - 08:55 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |