Just an fyi, I was able to grind my p203 (the one from pelican) tool as John912 has pictured above. It still didn't fit the wobble nut correctly, as the recess wasn't deep enough, so I ground the inside circumference so it would seat over the wobble nut better. After doing this yesterday, I was able to get both cam shaft nuts off and today I was able to remove the heads. Found a burnt up, broken exhaust valve, oh joy...ha.
Josh
Josh:
For me it wasn't the wobble nut itself preventing a good grip on the left side, it was the recess of the left-side sprocket that the tool needs to fit into and clear the chain to allow a good bite on the nut. It's obvious now from Jon's photo of the genuine tool that Porsche had this figured out whereas the aftermarket company did not. Sorry to hear about the valve
John Schiavone
Connecticut
356 Cab, 66 911, 914-6, 550-Beck, 981 Cayman, 54 MV Agusta Dustbid
The genuine Porsche tool (L) is deeper internally as well.Originally Posted by Alaskan911
People often refer to the SIR version as "the factory tool", but it isn't.
Jon B.
Vista, CA
John and John, I very much appreciate the information and help you've provided. As mentioned earlier, it took some extensive modifying with the grinder to get my SIR tool to work with the wobble nut, but all is well that ends well.
This has been fascinating taking the motor apart and am glad I am doing it myself. Tonight or tomorrow I am gonna split the case and see what I find in there. Pretty soon I will start ordering parts and I hope you guys don't mind more of my rookie questions then, as I am sure I will have a bunch.
Once again, thanks for all your help!!
Josh
Not me, I’m more of a rookie than you are when it comes to the engine side. Fortunately I was mentored by someone who’s had these engines apart and back together more than he could remember
John Schiavone
Connecticut
356 Cab, 66 911, 914-6, 550-Beck, 981 Cayman, 54 MV Agusta Dustbid
Here is my offering s. P tool on left ( Has Bill`s Auto scrawled on the side) & Sir tool on right. Bottom photo showing the unusual locaters ? ....cliff
Last edited by Cliff; 03-29-2020 at 08:29 AM.
To err is human; to blame it on someone else is more human...
"You must always strive to be the best, but you must never believe that you are."
—Juan Manuel Fangio[48]
”What would PORSCHE do”
67 911 de Luxe, 356 B silver metallic / brown interior, ( buck skin really ) 67 PORSCHE [ built ] 912, Crystal blue, black interior, 72 T, Silver metallic/black interior, appearance group,factory AC.
The two genuine Porsche tools:
P 139 for 41 mm (atf) nuts.
P 203 for 46 mm (atf) nuts.
Jon B.
Vista, CA
Perhaps my 203 is not authentic after all!
To err is human; to blame it on someone else is more human...
"You must always strive to be the best, but you must never believe that you are."
—Juan Manuel Fangio[48]
”What would PORSCHE do”
67 911 de Luxe, 356 B silver metallic / brown interior, ( buck skin really ) 67 PORSCHE [ built ] 912, Crystal blue, black interior, 72 T, Silver metallic/black interior, appearance group,factory AC.
I’ve been using this non original setup for 40 years. The pictured one is 41mm for racing nuts. Don’t know if the 46mm piece will fit over the wobbly nut but I don’t see why not. G
Gordon, that's probably the tool that Porsche should've made. It would appear to keep both tools aligned.
Cliff, there's only been one version shown in the factory catalogs since 65, but there might have been a different pre-production tool in 64.
In the end, whatever works well is the important thing, but I think we should still document the original factory and various aftermarket versions.
As Josh has shown, some of the aftermarket tools don't always fit well in all situations.
Jon B.
Vista, CA
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