Head rebuild problem, Is this guy a dick head? |
|
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. |
|
Head rebuild problem, Is this guy a dick head? |
DavidSweden |
Jan 4 2015, 05:56 PM
Post
#1
|
Member Group: Members Posts: 479 Joined: 8-June 14 From: Sweden Member No.: 17,452 Region Association: Scandinavia |
I am rebuilding my engine a 2.0 from 76. I took the heads in to be reconditioned.
The machinist told me that the valve stems needed replacing, the valves needed regrinding and the seats machined. He said this would be no problem. He know tells me that the new valve stems are not at the same angle as the originals and after machining the seats the valves sit too low in the valve seats. He says new valve seats are required As you will understand I am not happy especially when he reassured me that he could do the job no problem. Is this guy incompetent dick head or is this a common problem,? Appreciate feed back before I go to the shop on Wednesday. |
r_towle |
Jan 4 2015, 09:01 PM
Post
#2
|
Custom Member Group: Members Posts: 24,588 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
If he put in new valve guides and reamed them out at the wrong angle, then tried to fix his error (he jigged it up wrong) by grinding the valve seats again, I would have to agree.....go get your heads.
Now you need new guides, again, and new seats. It's not the end of the world and the heads are not ruined, you may just want to find a shop the knows how to deal with type4 heads. Contact mittelmotor in Germany, they may be able to suggest a good machinist in Sweden, or look at the german look forum on,shoptalk forums and ask there...again to get a name of a shop that will treat you right. |
DavidSweden |
Jan 5 2015, 05:02 AM
Post
#3
|
Member Group: Members Posts: 479 Joined: 8-June 14 From: Sweden Member No.: 17,452 Region Association: Scandinavia |
If he put in new valve guides and reamed them out at the wrong angle, then tried to fix his error (he jigged it up wrong) by grinding the valve seats again, I would have to agree.....go get your heads. Now you need new guides, again, and new seats. It's not the end of the world and the heads are not ruined, you may just want to find a shop the knows how to deal with type4 heads. Contact mittelmotor in Germany, they may be able to suggest a good machinist in Sweden, or look at the german look forum on,shoptalk forums and ask there...again to get a name of a shop that will treat you right. Thanks for the input, I am at a real disadvantage as my knowledge of engines and rebuilding is very limited...in other words I dont know shit. And Yes I mean guide not stems sorry for the mistake. I will take some photos and post them later in the week until then I will try to stay calm and hear what the guy has to say. Thanks again |
Lo-Fi Version | Time is now: 9th June 2024 - 01:35 AM |
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 ... |