Originally posted by FieroGT42:
I've been keeping an eye out for an easy and inexpensive way to adapt an F23/F40 quick disconnect to the stock cluck system while I'm doing an auto-to-manual swap, and I found a solution I'd like to share.
Since I'm converting to a manual, I need to run a new clutch line including a flex line, so this is perfect for me. I am not endorsing any manufacturers or retailers below. This is just the information I compiled.
F23/F40 HTOB clutch line adapter/flex line
I've been looking for a suitable adapter or a way to make one since I discovered that the F23/F40 clutch line coming from the bleeder junction is plastic and is obviously not suitable for flaring to meet a stock Fiero or custom line.
If you have the bleeder Y-pipe junction block thingamajig with the quick-disconnect intact, you can remove the plastic line and attach the steel end to an adapter or brake nut of your choice. On the F23, the supply side tube inside the plastic line is just a few hundredths under 1/4" OD so it will fit nicely inside 1/4" adapter. I welded one to seal it, then filled the cavity with JB Weld, but I was curious to find out if someone already made a solution for those who can't or don't want to bother with this.
Knowing that the F23 was used in the F-body (Cavalier/Sunfire) as well as the Delta platform (Cobalt, G3, etc.) and many others, I looked at what they were using. Eventually I found someone making adapters for $60-80, and another who made a part starting with a BMW clutch line. The aftermarket BMW lines for $40+ looked a little Autozone/Pep Boys ricer quality to me, so dug a little more and found the part that it originally replaced. Apparently there's a Getrag in a BMW E46 that uses the same connector on the HTOB side and the other end is threaded. With just an adapter or clutch line threaded into that, you can have a German OEM quality flex hose and HTOB/clutch line adapter manufactured in one piece without having to hack, weld, braze or crimp. Since I'm swapping from auto to manual, this was ideal for me. I'd have needed to buy a flex hose anyway. If you're swapping an F23/F24 into an auto, or if you're swapping into a manual and have an old flex hose, this would probably work for you.
The part is about 16"-ish long. The flex section is 31 cm/12" and the usable length from the F23/F40 plastic bleeder junction is 37.5 cm / 14 3/4". The quick disconnect plugs into the F23 and uses the same clip as the stock hose, and the other end terminates in a female metric M 10 x 1.0 bubble flare. The stock Fiero lines used M12x1.0 bubble flare, so a one-piece adapter should let you use this for a flex line while minimizing the number of connections that can leak. Since I'm running a new clutch line, and I think 3/16 will be easier to bleed than 1/4", I'll have a single 12mm-10mm adapter on my clutch master instead.
The prices I found below are for the cost in USD including shipping to central USA. There are flashy stainless braided variants of untested quality and durability out there ranging from $40 to $80 shipped, but the OEM part is even more affordable and may actually be more reliable. And one of the biggest benefits, to me, is that there is no welding, brazing or other "Mickey Mousing" to use it.
I bought the OEM part. Here's what you can expect to receive:
These are the OEM part numbers and applications. You can probably get the part from any BMW dealer for these cars or use them to check interchanges:
These are the parts and sources I found:
Code: Select all
[b][U]OEM:[/U][/b]
[U]$ Part # Manufacturer retailer[/U]
28 W0133-1815281-FTE FTE Amazon.com
* 21 52 6 774 267 (same as above)
* 323E.352E.03 (same)
35 21526774267 Genuine BMW part ECSTuning.com
35 21526774267 (41523 ) Genuine BMW part secarpart.com
37 21526774267 Genuine BMW part (various dealership websites)
[strike]NOTE: FTE/EPS has been making OEM European parts for over 60 years. It may be an exact OEM part.
In any case, I'd expect it to be of the same quality.[/strike]
I've confirmed that the FTE is in fact the OEM part, so any of the above numbers should be genuine.
[b][U]Aftermarket braided SS:[/U][/b]
[U]$ Part # Manufacturer retailer[/U]
36 18/33, 207 ? Euro-wise.com
40+ AP-E46M3-400 Agency Power many various websites
42.36 SSCLC160 ? from turner motorsport
45 SS-CLU-02 Rogue Engineering Rogue Engineering
The Agency Power/Turner parts are generally thought by many Bimmer enthusiasts to come from the
same manufacturer. Rogue Engineering may have a different supplier or make their own stuff. I didn't
do that much research since I didn't use their parts.
Jason