how to tell short shifter parts, pics included

[javadog]

Don't know, all mine have had the collar. Maybe the boot was added later by an owner. What year is it from?

JR

[robotman]

I just talked to pelican parts it turns out the shifter in my 75 911s is from a 1970 to 1973 car the housing is marked 911.424.019.05. There is no adjusting screw just two roll pins hold the fork in place. And this is my problem there is about a quarter inch play in the housing with the new short shift kit pivot fork. Is there a proven fix for this or do i have to find a newer style shift housing which would be a 911.424.019.06 for 1974-1986 models.

[javadog]

You've got two choices. Buy a later one, used, or modify the one you have. You'd need to drill and tap the hole to suit the threaded pin used in the later housing. You'd also have to machine a flat spot on the face of the housing, for the lock nut. Once you have the housing in a vice, on a mill, you're talking maybe 10-15 minutes work. Then, you'd have to buy the pin and nut.

JR

[robotman]

That sucks wish i new this before i yanked it apart.
I guess i will look for a later housing.

[KTL]

I don't think it's necessary to modify the housing to fit the later style allen head pin and big jam nut. Instead, simply shim the box/fork to remove the play. Find some washers that have an inside diameter that is the same size as the roll pin. Stack the washers to remove the play between the fork and the shift housing.

Just don't make it tight such that there is excessive resistance to rotation. You may have to leave a slight bit of play, simply due to the thickness of washers available to you. Nonetheless, a little bit of play is better than the large amount you currently have.

[911pcars]

Originally Posted by javadog

The only problem with that is that there was also a lever that was in between the original and the short shifter. This lever had a 10% reduction in throw, as compared to the original levers, while the short shifter had 20%. It became standard in 1985. I'm pretty sure it also had the collar, which was intended to position the top of the leather boot that was used on the shifters of the mid- to late-1980's.

JR

Yes. 1985. One year only. About 10-12% shift throw reduction. The fork is rectangular, but the pivot pin offset is the same amount as the slightly longer (below the pivot) lever.

Sherwood

[robotman]

I was thinking of that but was not sure if i dont get it dead center would it screw shifting up.

[911pcars]

Originally Posted by KTL

I don't think it's necessary to modify the housing to fit the later style allen head pin and big jam nut. Instead, simply shim the box/fork to remove the play. Find some washers that have an inside diameter that is the same size as the roll pin. Stack the washers to remove the play between the fork and the shift housing.

Just don't make it tight such that there is excessive resistance to rotation. You may have to leave a slight bit of play, simply due to the thickness of washers available to you. Nonetheless, a little bit of play is better than the large amount you currently have.

M8 washer fits the roll pin OD. Try to install an equal number of washers on each end such that the fork remains centered with minimal clearance. Might have to source some shim stock/spacers though. And then there's the task of driving in the roll pins while keeping all the pieces aligned. However, excess clearance here is accentuated at the shift knob which may or may not affect full gear engagement.

Sherwood

[javadog]

Originally Posted by 911pcars

Yes. 1985. One year only.

Actually it was used many years. It was the only option in 1985 but it continued to be the stock shifter after that. If you wanted the short shifter, that was optional (M241), and more money.

JR

[911pcars]

Originally Posted by javadog

Actually it was used many years. It was the only option in 1985 but it continued to be the stock shifter after that. If you wanted the short shifter, that was optional (M241), and more money.

JR

To my knowledge, only factory equipped in '85-'86, but I could be mistaken. I'm referring to what is known as the semi short shifter. Perhaps you're referring to the always optional M241 factory short shifter.

Factory semi-short shifter: about 10-12% shift throw reduction
M241 Factory short shifter; about 24% shift throw reduction

After '86, the factory went to the G50 gearbox which had it's own shift housing.

Sherwood

[javadog]

Sherwood,

I guess "many" was the wrong choice of words. What I should have said was that it was also used as the stock shifter in 1986.

Most of my time has been spent driving a 930 and those shifters didn't change until 1989...

JR

[manxter26]

Not to hijack this thread, but I just purchased the Porsche Short Shift kit for my 72 911t w/915 trans. It seems there are issues using the early (72) shifter. I also have the shifter out of a 1978 911SC. If I put the Short Shift kit in the 78 shifter, is this a bolt in for my 72. Thanks.

[911pcars]

Originally Posted by manxter26

Not to hijack this thread, but I just purchased the Porsche Short Shift kit for my 72 911t w/915 trans. It seems there are issues using the early (72) shifter. I also have the shifter out of a 1978 911SC. If I put the Short Shift kit in the 78 shifter, is this a bolt in for my 72. Thanks.

The '72 915 shifter resembles earlier 901 shift housings. Yes. replace it with a 73-86 shift housing. The '78 shifter you have is an exact drop-in replacement. Make sure the short shift kit is for the 915 shift housings and not the 901 shifters (although I believe Weltmeister was the only manufacturer of these). Confirm with pics in this thread and elsewhere.

Sherwood

[robotman]

Ok modified my shifter with some washers and fine adjusting, all gears work good but going into reverse it does not feel like it is all the way back into reverse, its like its barely in reverse and could pop out. Also i thought it would shorten shift travel allot more than it did. It is definetly shorter but not as much as i would want.
Any suggestions?

[911pcars]

If the fork isn't centered fore-aft, e.g. if all spacers/washers inserted on the forward end, this will affect the travel of the lever, maybe enough to prevent total engagement of a gear. In any direction, shift lever travel is limited by the rubber buffer under the top carrier plate.

In neutral the lever should be vertical and pretty much centered between the fore-aft and left-right opening.

Sherwood