P201 Engine Yoke clearance with crossover pipe

[Dauner]

Hi everyone,

Car is 1989 911 3.2 liter. Have my engine on my temporary ATV lift waiting to mount a SIR tools P201 engine yoke. Have others experienced interference with the crossover pipe in the pipe itself (not the mounting flanges)?

My specific question is, what did you do to remove crossover pipe? all hardware is severely rusted, so nuts are losing their hexagons pretty easily. I'm ready to dive in with dremel and cutting tool but I can't access one of the nuts on the lower inboard passenger side. lower inside nut on driver side has slightly better access.

Have people mounted the yoke on CAT side, flipped engine upside down for access, removed exhaust, then relocate yoke? Anyone been here, leave the two difficult to access nuts, swing crossover pipe down a bit, mount yoke.

Looking for a Been There, Done That.

thanks,

mark

[75 911s]

I removed mine prior to mounting on the p201.

Try all the usual suspects? Heat, kroil, skinny wrenches. You can grind down a cheap harbor freight wrench or ebay wrench. I think HF even has a skinny set in metric.

Once you get the pipe nut loose, you can use a big socket on the fitting if I remember correctly.

[john walker's workshop]

Probably need to cut a notch in it. Had to do it with mine.

[DRACO A5OG]

Originally Posted by john walker's workshop

probably need to cut a notch in it. Had to do it with mine.

+1

[Jesse16]

I remember a minor amount of grinding on my P201 to attach. Less than 1/4" or so in some area maybe ?? Then all was good for the entire process. Others reference it in various P201 threads.

[pmax]

Sure sounds familiar.

P201 Yoke clearance

I removed the crossover pipe.

[Dauner]

Just to finish out the thread for others in similar situation. My question wasn't do I need to remove my crossover pipe, but how did people remove an extremely rusty bolt / nut on the lower rear passenger side flange. My challenge was my original selection of ATV lift, sheet of plywood, and 2x4's with heat exchangers on the 2x4's. I knew I was going to have to grind, just couldn't figure out how to get in there. A little embarrasing that I didn't think of this earlier, but all I did was take short 6" 2x4 and lift the engine up a little higher. It was enough that I could get the dremel in to slice up the nut a bit, and hammer/cold chisel to get the nut started moving. Anticlamactic solution.

Also, just in case anyone is thinking of this, the sears "low profile damaged nut removal tool" didn't bite and work in this situation.

Thanks for everyone's thoughts and comments...

[Adrock]

I was in this situation just on the weekend, which is how I just came across this thread.
For the rusted nuts/bolts that I could access, I held a spanner on one side and a impact wrench on the other. They easily zipped off. The two inner nuts/bolts were difficult because almost nothing I used would grab them. In the end I grabbed one end with a pair of vice grips and the other side with a spanner. Then I hit the spanner with a persuader. (manual impact wrench!) got it loose.

I was also doing this in order to fit up the yoke, but wasn't able to remove the cross over pipe, even with the nuts removed. I assumed that the pipe might have gone slightly inside the heat exchangers? Or should it just slide off? I ran out of time/daylight to really get stuck into it to see why it was sticking. Looking at diagrams, there shouldn't be anything holding it on there.

[proporsche]

My yoke from Porsche factory has already the cut out on it..
Ivan

[boyt911sc]

Originally Posted by proporsche

My yoke from Porsche factory has already the cut out on it..
Ivan

I have no problem installing my 911 engine yoke at left or right side of the engine for the removal and installation of the cross over oil line.










For removing frozen nut, use heat and impact tool


Tony

[Adrock]

I wouldn't have a problem fitting the yoke either if my cross over pipe was the same as yours.
However, I believe that I have the 930 configuration which appears to be much fatter than your cross over pipe.



Heat wasn't required to undo the bolts. Just the impact wrench and some WD-40... although I doubt the WD-40 had time to penetrate much, esp since the bolts were horizontal.

[pmax]

The other is for oil.

The crossover pipe in question is for the exhaust.

[Adrock]

Originally Posted by pmax

The other is for oil.

The crossover pipe in question is for the exhaust.

Ha. Well that would explain it!
I can't see how anybody, including those with the yoke with a section cut out of their yoke could fit it to the engine without removing the exhaust cross over pipe.

[proporsche]

adrock..that is exactly the reason for the cut out section so it fits ,trust me;-)

Ivan

[boyt911sc]

Originally Posted by Adrock

Ha. Well that would explain it!
I can't see how anybody, including those with the yoke with a section cut out of their yoke could fit it to the engine without removing the exhaust cross over pipe.

Adrock,

I have three (3) 911 engine yokes and have loaned them several times to PP members. Both SC and Carrera 3.2 engines with comple OEM exhausts mount perfectly with these yokes. I have done more than a dozen engine rebuilds and can not understand your problem if you have the correct yoke. Some cheaper versions have problem with fitment. Not the ones we got from Pelican Parts.

Listen to Ivan. He has a lot of experience in mounting 911 engines on engine stands.

Tony

[Adrock]

Originally Posted by boyt911sc

Adrock,

I have three (3) 911 engine yokes and have loaned them several times to PP members. Both SC and Carrera 3.2 engines with comple OEM exhausts mount perfectly with these yokes. I have done more than a dozen engine rebuilds and can not understand your problem if you have the correct yoke. Some cheaper versions have problem with fitment. Not the ones we got from Pelican Parts.

Listen to Ivan. He has a lot of experience in mounting 911 engines on engine stands.

Tony

Do you happen to have any photos of those engines with both the 3.2 exhaust cross over pipe installed and the yoke? I searched the forum when I had the problem and all the posts I found were people having the same problem as me including some that cut their pipe off to make it fit. I'm using the "correct" yoke, so I'm keen to see some images of how you have managed to do this. Thanks for your help.

Sent from my Pixel 2 using Tapatalk

[Adrock]

Here's my flywheel end with cross over in place....

Sent from my Pixel 2 using Tapatalk

[proporsche]

well? to install the yoke you have to remove the clutch first...
Ivan

[pmax]

Originally Posted by boyt911sc

Hmm...

[proporsche]

well it is easier, no reason to leave the clutch on it;-)if you are lifting the engine with yoke it is is for a reason ,let`s say working on it...big PIA to take it later or?
also it is Tony`s engine without the cross over pipe;-)

Ivan