You can change the style the forum displays by selecting your preferred style at the bottom left of the site.
We have made an enhancement so that old threads should now link from search results to the correct thread. This is not yet in place for single post links
all the conversions i have done so far all options have been interchangeable. 7a 3b aby aan and ur all have the pin or steel in the correct location and all work on either engine. For the aby to the ur gearbox use a ur flywheel and an uprated clutch but make sure you fit a spiggot bearing into the rear me the crank to support the input shaft.
all the conversions i have done so far all options have been interchangeable. 7a 3b aby aan and ur all have the pin or steel in the correct location and all work on either engine. For the aby to the ur gearbox use a ur flywheel and an uprated clutch but make sure you fit a spiggot bearing into the rear me the crank to support the input shaft.
I presume also a 3B clutch with 7A flywheel would fit the UrQ gearbox right? As long as I use the spigot bearing.....
I presume also a 3B clutch with 7A flywheel would fit the UrQ gearbox right? As long as I use the spigot bearing.....
From what I feel - 7A flywheel will not accept urq gearbox main shaft. 7A, S2(3b) flywheels are not ment for 016 gearbox. And urq has one .
From my expierence - it's better to use 3b clutch for gboxes with clutch cylinder which is fixed by bolt, and to use older type flywheel combo (MC1, WR) for the gboxes which have clutch cylinder which is fixed by pin.
I have no idea is it possible to mix (clutch fork and release bearings look different), but I have expierence of mentioned sets working. And expierence of not working when I have tried to use old clutch cylinder on newer gbox (bolt type).
In general (I repeat this bazilionth time, no pictures this time, if you want them - search! ) there are three useable solid flywheel clutch combos:
1. 7A, S2(3B), NG(modified with timing pin) flywheel + 7A or S2(3b) clutch. This is for S2 and other non typ85 or typ44 cars. Flywheel has bearing.
2. 1B, KG, MC1 typ44 (audi 100/200), and urq cars post 84(?) pre 88' production year. Flywheel is easy to identify, because it looks like bowl, however has timing pin on the back. This is heaviest thing that can be bolted to typ85 or typ44 car. 20vt engines run with this, however it has negative impact on revving, positive impact on daily use, car feels smoother. I have no info on oldest URQ's which had sensor on top of the box.
3. MC2, 3B, 1B(?) typ44, urq RR post 88 production year flywheel + clutch meant for same engines. This is best (IMHO) setup for typ85 or typ44 car. Flywheel can be identified by having timing pin on the back, and having BIG hole in the middle (no bearing). Note that 3B clutch is the same as other engines. Also S2(3B) pressure plate probably can be used with this combination, as I was unable to spot any differences. But haven't tested (and not researched this topic).
Note, if you manage to mix anything not in order I have written - (like s2 flywheel in typ44) it will work form engine side, but flywheel timing marks will be WRONG!. You cannot rely on factory marks when doing timing belt change, etc. It's possible to use front puley marks for this purpose thou.
Regarding spigot bearings. 3B from audi 200 has "small" spigot bearing in the crank. Which is not accepting large typ85 input shaft. It's quite a PITA to get it out. Note that some typ44 016 torsen boxes have small diameter shaft, some have large. And the bearing for small shaft is quite expensive. 3B, ABY from S2, AAN - have no bearing. So check your gearbox shaft diameter first, then press apropriate bearing into crank.
Should we edit what I wrote and then make this sticky? . Because I feel it will be asked many times again and again .
We process personal data about users of our site, through the use of cookies and other technologies, to deliver our services, personalize advertising, and to analyze site activity. We may share certain information about our users with our advertising and analytics partners. For additional details, refer to our Privacy Policy.
By clicking "I AGREE" below, you agree to our Privacy Policy and our personal data processing and cookie practices as described therein. You also acknowledge that this forum may be hosted outside your country and you consent to the collection, storage, and processing of your data in the country where this forum is hosted.
. 
) there are three useable solid flywheel clutch combos:
Comment