Another 914-6 GT Tribute Project Options

[Tom1394racing]

This is a pretty typical issue from what I've heard. I think you can get away with milling down just one corner of the covers. See this post:

http://www.914world.com/bbs2/index.php?sho...p=2239420&#

(IMG:http://www.914world.com/bbs2/uploads/post-15674-1442626025.jpg)

(Not my picture)

Thanks for the suggestion. My covers have been milled. The interference I have is between the valve cover stud, the inside mate surface of the valve cover and the top of the heat exchanger.

[targa72e]

Twin plug lower plug clearance is dependent on what head studs and nuts were used. The 964 on did not use the allen head nuts to provide more clearance. Several aftermarket set address this I issue as well. might be able to change out nuts to use same plugs top and bottom.

john

[Tom1394racing]

Twin plug lower plug clearance is dependent on what head studs and nuts were used. The 964 on did not use the allen head nuts to provide more clearance. Several aftermarket set address this I issue as well. might be able to change out nuts to use same plugs top and bottom.

john

Thanks John

Yes, I know I could replace the lower barrel nuts with 964 style head stud nuts. That might give me additional clearance and I might be able to get a regular spark plug socket down inside there. However, the motorcycle plug solution has worked well for me on my RSR twin plug motor And so I’m planning to go that route.

[mb911]

Twin plug lower plug clearance is dependent on what head studs and nuts were used. The 964 on did not use the allen head nuts to provide more clearance. Several aftermarket set address this I issue as well. might be able to change out nuts to use same plugs top and bottom.

john

Thanks John

Yes, I know I could replace the lower barrel nuts with 964 style head stud nuts. That might give me additional clearance and I might be able to get a regular spark plug socket down inside there. However, the motorcycle plug solution has worked well for me on my RSR twin plug motor And so I’m planning to go that route.

So if you switch to bolt on solution rather then stud and nut you can slid the cover off. It works pretty well

[Tom1394racing]

Twin plug lower plug clearance is dependent on what head studs and nuts were used. The 964 on did not use the allen head nuts to provide more clearance. Several aftermarket set address this I issue as well. might be able to change out nuts to use same plugs top and bottom.

john

Thanks John

Yes, I know I could replace the lower barrel nuts with 964 style head stud nuts. That might give me additional clearance and I might be able to get a regular spark plug socket down inside there. However, the motorcycle plug solution has worked well for me on my RSR twin plug motor And so I’m planning to go that route.

So if you switch to bolt on solution rather then stud and nut you can slid the cover off. It works pretty well

Thanks Ben...That is my plan. I will probably leave the upper studs and change out only the bottom row with bolts.

[mb911]

Twin plug lower plug clearance is dependent on what head studs and nuts were used. The 964 on did not use the allen head nuts to provide more clearance. Several aftermarket set address this I issue as well. might be able to change out nuts to use same plugs top and bottom.

john

Thanks John

Yes, I know I could replace the lower barrel nuts with 964 style head stud nuts. That might give me additional clearance and I might be able to get a regular spark plug socket down inside there. However, the motorcycle plug solution has worked well for me on my RSR twin plug motor And so I’m planning to go that route.

So if you switch to bolt on solution rather then stud and nut you can slid the cover off. It works pretty well

Thanks Ben...That is my plan. I will probably leave the upper studs and change out only the bottom row with bolts.

That works. I just went full bolts to ease it

[Tom1394racing]

A bit more progress. I did a preliminary fit of the engine sheet metal. It took a little fiddling with some enlarging of the mount holes and some tin snip work but it seems to fit well. I'll still have to drill some through holes for the lower plug wires.

I also installed the Kennedy Engineering Phase II clutch kit that allows me to use the 3.0 flywheel with the 901 gearbox. All seemed to go smoothly.

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attachmentid=917689]

[peteinjp]

This is a pretty typical issue from what I've heard. I think you can get away with milling down just one corner of the covers. See this post:

http://www.914world.com/bbs2/index.php?sho...p=2239420&#

(IMG:http://www.914world.com/bbs2/uploads/post-15674-1442626025.jpg)

(Not my picture)

The 993 uses bolts for the valve covers instead of studs. 900 075 345 02- but they are 6mm so e probably no help.... Just saying the factory did it too. .

Pete

Edit- wrong part number 900 067 238 02

[Tom1394racing]

This is a pretty typical issue from what I've heard. I think you can get away with milling down just one corner of the covers. See this post:

http://www.914world.com/bbs2/index.php?sho...p=2239420&#

(IMG:http://www.914world.com/bbs2/uploads/post-15674-1442626025.jpg)

(Not my picture)

The 993 uses bolts for the valve covers instead of studs. 900 075 345 02- but they are 6mm so e probably no help.... Just saying the factory did it too. .

Pete

/
Edit- wrong part number 900 067 238 02.

Thanks!

OK...You guys have convinced me. I will change out all my lower valve cover studs to bolts. I am sure I must have the right size M8 bolts in my stash

[mb911]

This is a pretty typical issue from what I've heard. I think you can get away with milling down just one corner of the covers. See this post:

http://www.914world.com/bbs2/index.php?sho...p=2239420&#

(IMG:http://www.914world.com/bbs2/uploads/post-15674-1442626025.jpg)

(Not my picture)

The 993 uses bolts for the valve covers instead of studs. 900 075 345 02- but they are 6mm so e probably no help.... Just saying the factory did it too. .

Pete

/
Edit- wrong part number 900 067 238 02.

Thanks!

OK...You guys have convinced me. I will change out all my lower valve cover studs to bolts. I am sure I must have the right size M8 bolts in my stash

Good call

[technicalninja]

But you LOSE the cool nylocks...

Just kidding!

Now, every single 911 I have adjusted the valve on I purchased the kits with the new nuts.

I SAVED the old ones...

Been using them for 3 decades when I need a nylock for something.

I still have 60+ old ones!

[rgalla9146]

Hey Tom
Your project is coming along beautifully.
See pics of my lower ignition wire routing.
The grommits are 993 or 996 OEM
I'm away at the moment so can't provide the part #
Also, I used full size lower spark plugs and found the only plug wrench that would
work was the one included in '69-'73 OEM tool kits.
I also used 12 point cyl. head nuts for additional clearance.
The lower valve covers are milleded 996 items with the rubber perimeter seals.

[TJB/914]

Hi Tom
Outstanding build and workmanship (IMG:style_emoticons/default/pray.gif)

If you need any of these 911 spark plug wrenches, free if needed.

Tom MI

[mb911]

Hi Tom
Outstanding build and workmanship (IMG:style_emoticons/default/pray.gif)

If you need any of these 911 spark plug wrenches, free if needed.

Tom MI

Tom that is badass. Wish I had some of those. They are not convenient then standard setups

[Tom1394racing]

Hey Tom
Your project is coming along beautifully.
See pics of my lower ignition wire routing.
The grommits are 993 or 996 OEM
I'm away at the moment so can't provide the part #
Also, I used full size lower spark plugs and found the only plug wrench that would
work was the one included in '69-'73 OEM tool kits.
I also used 12 point cyl. head nuts for additional clearance.
The lower valve covers are milleded 996 items with the rubber perimeter seals.

Rory

Thanks for the tip on the lower plug wire grommets. I should be able to find them. I do have the 12 point head stud nuts and an original ‘73 tool kit. I think I will check out switching to regular spark plugs when I change out the valve cover studs.

[rgalla9146]

Tom the pics were taken before I spent time to fully adjust the wire lengths,
especially over the top of the fiberglass.
Be carefull on the 4-5-6 side... leave enough length below the tin to remove plug
connectors

[Tom1394racing]

I replaced to lower studs on the lower valve covers with hex bolts. I kept the top studs as they make it easier to hang the valve cover and gasket for mounting. No more clearance issue with the heat exchanger or oil hose.

[Tom1394racing]

Yesterday I mated the transmission to the engine using my lift to position the transmission to slide easily onto the engine rear studs.

[Tom1394racing]

I mounted my new WOSP high torque starter after checking the position of the drive gear relative to the flywheel ring gear. The only way the stater fit was with the electrical connections on the top. Rotating it 180 deg results in interference with the gearbox exterior gusset. I am wondering if there be enough clearance between the top connections and the bottom of the rear trunk floor pan?

[Cairo94507]

Hi Tom,
@Tom1394racing My high torque started is installed with he terminals on top like you have. It fits and the terminals can be accessed. (IMG:style_emoticons/default/beerchug.gif)