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> -6 lower valve cover modifications
Scott S
post Oct 22 2009, 09:58 AM
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Hi All –
I am starting to button up my 2.7 after getting everything cleaned up. I noticed on the PP site that Wayne had to remove a significant amount of the cooling/structure ridges on the lower 930 valve covers. I was surprised at how much material was removed. Is this a “every 914 is a bit different” type mod, or is it always something that needs to be done? Can I simply use a dremel? I don’t want to warp anything….
Thanks! (IMG:style_emoticons/default/beerchug.gif)
Scott S
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J P Stein
post Oct 22 2009, 10:13 AM
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It needs to be done to all of em'. A considerable amount of material needs to come off. One way to do it is to leave off the valve cover when installing the engine.....them trim to fit with a bit of extra room. Basically, the ribs need to come off down to the nut bosses on each upper/aft quarter of the cover.
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Ferg
post Oct 22 2009, 10:17 AM
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Do them now while they are off, and yes, quite a bit needs to come off.

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Scott S
post Oct 22 2009, 10:27 AM
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Here is the pic Wayne sent me. He said he only had to do one side – but I had heard other variations. Thats was why I was wondering about each car being different. I will do this to both sides to make sure. (IMG:style_emoticons/default/sawzall-smiley.gif)

Thanks JP/Ferg (and Wayne!)


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john rogers
post Oct 22 2009, 10:41 AM
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Both sixes (2.2L & 2.7L) we had in my race car were modified to use bolts and no material was removed.
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Ferg
post Oct 22 2009, 10:44 AM
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I would do both sides, IIRC one side I did slightly less, but if I did it over, I would do it just like that pic, much cleaner looking.
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MDG
post Oct 22 2009, 10:53 AM
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I did mine like the pic shows; did both too. Take your time grinding as it cuts fast. Pretty easy mod and unless you want to drop your engine every time you need to remove them, you'd better do it now.

Oh, and zero leaks since I did it.
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Cap'n Krusty
post Oct 22 2009, 11:33 AM
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Or you "could" use early 911SC aluminum lower valve covers. They fit, they clear the body/suspension, they don't warp, and they don't leak. The best part? There's a TON of them around because people do what ever their internet friends tell 'em to. I had a pile of them at Ventura, and they FLEW away to knowledgeable buyers.

The Cap'n
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ClayPerrine
post Oct 22 2009, 12:11 PM
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The Capt'n is right. But if you already have the turbo valve covers, you have to trim both sides. Otherwise you won't get them off the engine without dropping it out of the car. No clearance over the suspension console.

My motor is out of the car right now. I can take some picts of mine if you like.
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J P Stein
post Oct 22 2009, 07:25 PM
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You can use bolts....*IF* you heli-coil the threads.
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sixnotfour
post Oct 22 2009, 08:02 PM
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I like to leave a back bone


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TROJANMAN
post Oct 22 2009, 09:12 PM
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Looks nice in pictures.........
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Scott,
If you can get away, you should come down and take a look at my car this weekend. It just so happens to be up on jackstands (shocker) (IMG:style_emoticons/default/biggrin.gif)
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Ferg
post Oct 22 2009, 09:20 PM
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QUOTE(TROJANMAN @ Oct 22 2009, 07:12 PM) *

Scott,
If you can get away, you should come down and take a look at my car this weekend. It just so happens to be up on jackstands (shocker) (IMG:style_emoticons/default/biggrin.gif)



Don't listen to him Scott, Brant fell for that, he was there all day (IMG:style_emoticons/default/lol-2.gif)
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IronHillRestorations
post Oct 22 2009, 09:21 PM
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I've always had 5/16" taken off the entire top of the cover. I know you don't have to do it like that, but to me makes it look less hacked.

I didn't know about the SC lower covers, thanks Cap'n!!

I like the helicoil or insert / bolt idea, anyone else do this JP, or did you come up with it?
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Gint
post Oct 22 2009, 09:22 PM
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QUOTE(Ferg @ Oct 22 2009, 08:20 PM) *
QUOTE(TROJANMAN @ Oct 22 2009, 07:12 PM) *
Scott,
If you can get away, you should come down and take a look at my car this weekend. It just so happens to be up on jackstands (shocker) (IMG:style_emoticons/default/biggrin.gif)



Don't listen to him Scott, Brant fell for that, he was there all day (IMG:style_emoticons/default/lol-2.gif)

(IMG:style_emoticons/default/lol-2.gif)

I call your jackstand queen and raise you two motors. Both are not installed in a car and one has modified valve covers and the other one has unmodified valve covers. Both are sitting side by side for comparison even. Ha!
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TROJANMAN
post Oct 22 2009, 10:07 PM
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Looks nice in pictures.........
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QUOTE(Ferg @ Oct 22 2009, 07:20 PM) *

QUOTE(TROJANMAN @ Oct 22 2009, 07:12 PM) *

Scott,
If you can get away, you should come down and take a look at my car this weekend. It just so happens to be up on jackstands (shocker) (IMG:style_emoticons/default/biggrin.gif)



Don't listen to him Scott, Brant fell for that, he was there all day (IMG:style_emoticons/default/lol-2.gif)

:wed:

He left at a reasonable hour. The street lights hadn't even gone on yet (IMG:style_emoticons/default/bootyshake.gif)
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TROJANMAN
post Oct 22 2009, 10:21 PM
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Looks nice in pictures.........
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QUOTE(Gint @ Oct 22 2009, 07:22 PM) *

QUOTE(Ferg @ Oct 22 2009, 08:20 PM) *
QUOTE(TROJANMAN @ Oct 22 2009, 07:12 PM) *
Scott,
If you can get away, you should come down and take a look at my car this weekend. It just so happens to be up on jackstands (shocker) (IMG:style_emoticons/default/biggrin.gif)



Don't listen to him Scott, Brant fell for that, he was there all day (IMG:style_emoticons/default/lol-2.gif)

(IMG:style_emoticons/default/lol-2.gif)
Both are not installed in a car and one has modified valve covers and the other one has unmodified valve covers. Both are sitting side by side for comparison even. Ha!

Is that because your living room is connected to your dining room (IMG:style_emoticons/default/poke.gif)

(IMG:style_emoticons/default/biggrin.gif)
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J P Stein
post Oct 23 2009, 06:58 AM
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QUOTE(9146986 @ Oct 22 2009, 08:21 PM) *



I like the helicoil or insert / bolt idea, anyone else do this JP, or did you come up with it?


Nah, it's standard practice in the aircraft industry to use helicoil inserts in female aluminum threads. Aluminum threads wear out with regularly removed fasteners.
They are called STI threads/inserts leaving you with a standard thread hole.
I ground off the ribs like everyone else.....
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Scott S
post Oct 23 2009, 11:53 AM
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Gint, Greg -
I will need to see one of your rides. The two pics above are confusing. Waynes pic clearly shows the valve covers being gound on the fan side of the motor. Sixnotfour, in your pic it appears that they need to be done on the tranny side of the motor (based on where the suspension ear is in the pic).

EDIT: think I will just do the entire thing as per Perry's post to be safe.

Thanks a million everyone. very very appreciated.
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MDG
post Oct 23 2009, 12:35 PM
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tranny end gets the grind; you can access the nuts up front no problem
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