Pin holes in the head sealing surface..., Can I run as-is, or should they be welded up? |
|
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. |
|
Pin holes in the head sealing surface..., Can I run as-is, or should they be welded up? |
jhadler |
May 15 2009, 11:21 AM
Post
#1
|
Long term tinkerer... Group: Members Posts: 1,879 Joined: 7-April 03 From: Lyons, CO Member No.: 529 |
Hey all,
The motor is going back together, and upon close inspection of the heads, there are some small pinholes along the sealing surface of the head. I'd like to drop the head gasket and lap the cylinder to the head, but will these holes be a problem? Based on the measurements, the pinholes will be 0.016" outside of the ID of the jug, and as such, covered by the jug. But is that enough? Can I run this as-is? Lap the jugs to the heads, and run sans gasket? Should I run I gasket? Or should I have the holes welded up and re-flycut the heads? There's all of about 40 minutes run time on these heads right now. Thoughts? Experience? Thanks! -Josh2 |
jhadler |
May 15 2009, 09:50 PM
Post
#2
|
Long term tinkerer... Group: Members Posts: 1,879 Joined: 7-April 03 From: Lyons, CO Member No.: 529 |
Easy Cap'n... My JBWeld comment was in jest...
Yeah, I figured that it was probably gonna need to be fixed properly. Sounds like the head will need to have the valve and the seat pulled, the pin-holes milled out, and then re-welded and fly cut. After all the work that went into these heads, I hate the idea of re-doing it all. But with all this work going into the motor, I'd hate to be throwing it all away and need to tear it down again later on... I guess I'll talk to the guy who did the heads, see what he has to say. -Josh2 |
Lo-Fi Version | Time is now: 26th September 2024 - 09:51 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 ... |