Wevo Shifter adjustments needed

[Matt7127]

I just installed a new Wevo shifter on my 82 911SC. 1,3,5 shift very easy but going into the bottom gears 2,4,reverse are very hard almost as if there's not enough throw. I'Ve checked all the adjustments on the shifter itself but I'm wondering if I need to make adjustments to the coupler In the tunnel behind the seats or possibly replace. Anyone else experience this after installing the Wevo? Any help would be much appreciated. Thanks

[Porchdog]

I installed a used Wevo a couple weeks ago.

My 915 was "freshened" 20+ years/80+ thousand miles ago and 2nd gear is fussy to difficult. The WEVO made the shift to second noticeably stiffer/more difficult. Heel/toe mostly solves that for me.

Adjusting per the instructions was a bit more trial and error than I had expected. It took me about five iterations of finessing the coupler adjustment until I was happy with it and had the reverse lockout correct. My coupler bushings are fresh and everything linkage wise is pretty tight.

I'm also interested if someone has a more precise adjustment process than the factory instructions.

[gomezoneill]

I'm going through the same thing. I've spent hours trying to get it right. I installed the wevo coupler also. Thinking of returning the product. I ordered the wevo clamp and I'm going to give it another try.

[Darkly-Noon]

I installed the WEVO PSJ coupler several years ago and the 915 classic shifter a couple years after that. If I were to go back in time and do it over, I would probably just do the coupler, as it makes for a big improvement compared with the original, sloppy unit. I like the spring centering and shorter throws the new shifter gives you, but I think the value proposition is questionable.

After putting in the new shifter, it took a few adjustment iterations to arrive at the best position for all gears. It shifts cleanly, 1-2 is fine (ie. take your time and keep the revs up) but sometimes I find it hard to get the shifter out of 4th gear after driving for a while. Not sure why that is. My transmission may require some work in the future, as I'm not sure anything has ever been done to it.

I also felt the centering springs provided with the shifter, while probably good for track use are much too heavy for normal street use. WEVO sells lighter springs, but I managed to find some lighter ones myself to use. It still provides spring centering, but not as heavy as before.

Hope that helps

[75 911s]

I noticed on 1-3-5 easy and lower is hard, I needed to move the shift rod toward the back of the car at the coupler. This effectively centers the shifter front to back better. In other words, lower the distance between the coupler joint and the shift rod end. Too much and you can't get into 1-3-5. Not enough 2,4,R is difficult.

As for the WEVO - I don't fault them for the difficulty in tuning it. I think that is on the original Porsche design. The WEVO and the PSJ exacerbate the tuning difficulty of the shifter and the coupling. That's also what makes the wevo great is the precision once you do nail it.

Combined with the tower set screw, the side to side spring is really nice. If you are getting squeeks you can drop a bit of oil on the spring shaft, a little goes a long way here.

[mnez]

My Wevo is perfect. Installing just the shifter doesn't change anything to do with the shifting inside the transmission itself, other than a small increase in effort if the length of the shift handle is shorter than before. If it isn't right, the coupler needs adjustment, and therefore needed adjustment anyway. Follow his adjustment instructions exactly, and you will be very close. Fine tuning takes some time and iterations. Small adjustments make a big difference.
Don't forget about the cup bushing and the rod bushing.
I shimmed my springs to increase the effort - it is to personal taste, that's why different springs are available.

[ClickClickBoom]

I had a Seine Systems shift gate installed with a Stomski Shift Coupler, car shifted very nicely. Installed the Wevo shifter assembly, car shifted better, with more precision and better shifter placement. The coupler adjustments are truly minute in scale. If you are having trouble shifting, its the adjustment/install or an organic problem inside the transmission.

[Mahler9th]

I would consider checking the condition of the coupler and perhaps making adjustments to suit your taste.

My application is racing.

I am a relatively "early adopter" with the WEVO shifter and PSJ coupler. I have had mine for more than a decade. And I know the WEVO folks personally.

I have a lot of experience with all of the bushings, adjusting the shifter and adjusting the coupler.

Before the WEVO products I had a factory short shift kit and a factory coupler. When I made the change it was immediately noticeable and welcomed.

In my opinion, the instructions WEVO provide are top notch-- I know they worked hard on them. Jerry Woods Engineering/Motorsports/Smart Racing Products used to sell the WEVO shifters and couplers, and they had their own instructions which were also very, very good. I think I posted a PDF of those somewhere in these Forums in the past.

In my experience and opinion, most of the installation and fine tuning steps for these WEVO products are similar to what you would do with factory parts. It can take some fine tuning to get things they way you want them.

Each and every time I remover my engine and transmission (which is fairly often), I have to assume that my initial attempt to adjust thing may require some fine tuning after a test drive.

[Mahler9th]

And by the way, I learned about a year ago that it can be helpful to use blue Loctite on the coupler set screw. I have never had a problem without it, but I have a friend that had his race ruined when vibrations caused the set screw to back out--- he got stuck on track and had to watch the race in his rear view mirror.

A friend with about 40 years of technical experience (and IMSA racing experience) told us that the Loctite can be a good idea.

[mickey356]

OK, I'll jump in.... I, just last week, installed a weave coupler because I was having similar issues as described (hard shifting in to some gears). I installed a Rennshift almost immediately after I got my car because I had on my SC and I loved it. The car doesn't get driven much (a week here, sits for a couple weeks, then another week, etc....) but I noticed an increasing sensitivity to shifting and started the process of trying to find the perfect adjustment....carrying two 13mm wrenchs all the time. I've gotten it pretty close but there it's still not quite there...tough to get in to first at times...others times it slides right in....difficulty going in to third sometimes....others times it slides right in, heel toe/ double clutching helps but I prefer a street car to perform like a street car and not have to do the fancy footwork.
Which brings me to the "minute adjustments.....a little makes a big difference" thing: How much as we talking, 1mm, 1/8"? You can knock that small of adjustment out by simply tightening the clamp, or at least I can. I'm just curious so I know what to look for when it comes to the adjustments. I feel like I've done all things (shifter, bushings, coupler, etc...) and I may be facing a trans refresh. I've read the threads where people have similar problems and then they replace a bushing and it's the second coming of the 915 .

[Mahler9th]

In my experience, 1/8" or less can make a big difference. The same is true for adjusting the factory parts-- they are functionally and geometrically equivalent.

After a year or two with the WEVO shifter and coupler I bought their clamp. That helped.

In my application, I access the coupler by crawling inside of the car. I usually have no passenger seat in the way.

I have to deal with the roll cage however.

It can be beneficial to have a second set of hands.

[mickey356]

Originally Posted by Mahler9th

In my experience, 1/8" or less can make a big difference. The same is true for adjusting the factory parts-- they are functionally and geometrically equivalent.

After a year or two with the WEVO shifter and coupler I bought their clamp. That helped.

In my application, I access the coupler by crawling inside of the car. I usually have no passenger seat in the way.

I have to deal with the roll cage however.

It can be beneficial to have a second set of hands.

Thank you Mahler, second pair of hands is pretty much my last option before dropping the trans this winter and taking a look inside.

[OldSpool87]

Originally Posted by Mahler9th

In my experience, 1/8" or less can make a big difference. The same is true for adjusting the factory parts-- they are functionally and geometrically equivalent.

After a year or two with the WEVO shifter and coupler I bought their clamp. That helped.

In my application, I access the coupler by crawling inside of the car. I usually have no passenger seat in the way.

I have to deal with the roll cage however.

It can be beneficial to have a second set of hands.

I’ve used the fine point Sharpie for this. Two colors for easy reference. In my experience it’s really that sensitive.

[Mahler9th]

Sharpies... I have tried that.

Having the passenger seat out makes it a lot easier to get hands on things. Not really that hard to take even a stock seat out... then you can clean underneath too.

I reckon that if the car shifted ok into 2 and 4 with the stock equipment, it should be able to adjust the WEVO equipment to get the same type engagement.

Good luck.

I think the WEVO product is great, and the WEVO people are great too.

[rattlsnak]

Should be a simple adjustment. Loosen the coupler with the shifter in neutral, mark the ends of each throw, tighten in the middle..

[Matt7127]

Just an update, i opened up the compartment and the coupler has no bushings. They are completely shattered. Prob due to age but the new ones I have should make a huge improvement. haha

[Matt7127]

It will probably be a trick to get everything adjusted correctly once the new bushings are installed but atleast I know that was the problem.

[Gordo2]

Originally Posted by Matt7127

It will probably be a trick to get everything adjusted correctly once the new bushings are installed but at least I know that was the problem.

I've found the Wevo shifter to be incredibly easy to install correctly, first shot using the Wevo instructions. Meanwhile, I've done it enough times that I don't even refer to the instructions anymore.

I have required slight adjustment to get the reverse lockout positioned correctly, but otherwise not much room for side to side error.

I'm sure your coupler repair (or replacement) is going to make a huge, positive difference.

Good luck.

[Bigtoe32067]

Anybody not like their coupler and want to get rid of it please let me know.
I’ll buy it off of you
Tony

[gomezoneill]

I finally got mine right it took a lot of fiddling. But it's awesome now.