Glad you got it working, even if there isn't clarity in what was going on. In the diagram I see an ambiguity in the representation of the system - the gap between line number 52 and fitting number 121 - but if those are connected, then there is a pressurized connection to the clutch MC #51 and if you are getting anything green, it's definitely LHM. The clutch MC must be more of a valve that pressurizes the slave to release the clutch. Learn something new every day. - Art
Unless I am wrong, seems to me that the late Indy's 4900 that had LHM brakes had a conventional Clutch system. See here the comparison of a late Indy with a Ghibli and a Khamsin: https://www.classicandsportscar.com/news/csc-features/the-holy-trinity-of-maserati-v8-gts-%E2%80%93-ghibli-ss-indy-and-khamsin "As Heywood points out, this late car uses three different fluids for its various services: LHM for brakes, brake fluid for the clutch and ATF for the steering."
Homage to Jarvik. Some loss of LHM was inevitable, but otherwise the surgery was uneventful, and the patient is recovering well... Image Unavailable, Please Login
After doing that job you do wonder why they couldn't used the screw in style? Maybe there's a reason? Are those new or rebuilt?
Carter at Dave Burnham Citroen rebuilt them overnight. The procedure went pretty smoothly: - Back off the 13mm nut 4-5 turns, located on the distribution block above the main accumulator. - Cycle the headlight doors until there's no pressure. (- Get some rags and a small glass container to catch the LHM - there was still pressure to squirt the stuff out of the fittings in the next step..) - Loosen the flared-pipe fittings at each of the two Spheres (use a combination of 10mm, 14-15mm and 9/16" wrenches). - Loosen the 10mm lock nuts on hold-down armature. - Wrestle the armature and Spheres out. - Rebuild and repaint the Spheres (if one of them leaks, rebuild both while you're at it). - Reinstall Spheres. - Tighten the 13mm nut above the main accumulator. - Start engine, rev a little to run the compressor. - Actuate brakes, check for leaks. - Drive to Cars & Coffee. Cheers, - Art
Well that's great Dave. Over the years a number of folks have had issues with those special Maserati only fittings leaking. It's been eons since I did this.
Most leaks are cause by overtighting the flare fittings and not the special adapters themselves. Best not to disturb the adapters as they are very brittle and will break even if you are careful (ask me how I know). On the body of the pressure regulator is a hex bleed nut that can be briefly opened while the engine is running to let trapped air escape. The bleed nut is opened with a 12mm wrench. Ivan
My pleasure. One added step at the very end: - Bleed the brakes if they feel a bit soft or indicate the Low Pressure light.. Mine felt 10% soft but didn't trigger the Low Pressure light to blink. I drove the Bora a couple of weeks, then decide to bleed the brakes and found just a bit of air. Now the brakes are 100%. Cheers, - Art
Hello All, Hope you are all well?? Its been a whilst since I last logged on... I have a little problem which I am finding difficult to resolve... My LHM head light switch has a leak which I cant seem to stop. It has reduced to a small seep now with new seals in. Has anyone else had this problem, are there any spare parts available. The part number is Bosch 0 523 200 052. Is there anywhere which can overhaul and test these switches? Thanks all Rich Image Unavailable, Please Login
Talk to Maurice---in New Zealand! Owns yellow Bora--- Perfect gentleman---the ONLY hydraulics guy I trust. Regards.
---------------------------------------------------------------------------------------- Hello Villard Can you send me the contact details of French distributor of Maserati parts, European equivalent of MIE ? Regards Charles
Hi There, Just stumbled across this thread... Does anyone know a source for the small bore flexible hydraulic lines. I need to replace the two that go to the headlamp switch. Thanks
Those are a Bosch part and were also used on the Mercedes 600. Try this website: https://www.woerle-fahrzeugtechnik.com/en/content/133/96/restoration/comfort-hydraulics I have never used this company. Let us know of your experience if you decide to use them. Ivan
Hi Mark, This place appears to have the lines you are looking for. https://www.authenticclassics.com/SearchResults.asp?Search=600+hydraulic Regards Paul
Just to share an interesting Citroen/Maserati hydraulic story - At a car show this May with our Khamsin, a young local man introduced himself and said his father had bought a '72 Indy 4.9 at auction late last year and was in the process of recommissioning it.. We talked and, as I looked up information on the Indy with my smartphone, I said I assumed the '72 was an early enough model year it didn't have Citroen hydraulics. He said "Actually, it has the Citroen hydraulics. It wasn't delivered that way, but was retrofitted with it." I don't think I've heard of an owner retrofitting the hydraulics *into* a Maserati, at least here in the US. - Art
I missed the point where the Khamsin became yours as opposed to your fixing it for a friend? Was this one of Mike's cars?
Here is your clue;-) The silver car is Art's, since last September when I procured it to him from the previous owner, Andrew, also in New York state. The blue one he takes care of for a friend. Art took these beautifully composed photos. Image Unavailable, Please Login
Here is an interesting testimony on the resistance to fading of the LHM braking system. That comes from Paul Frère, a famous belgian automotive journalist, well acquainted with Guy Malleret at that time. The original statement is in french, here under is a free translation: "Mr. Malleret, the Managing Director of Maserati, lent me a Bora for a weekend and I used it a lot on the narrow, winding mountain roads, in the Apennines and on the highways. What makes this automobile quite remarkable is that it really excels in these two conflicting operating conditions, being quite agile in the former and both stable and relatively quiet at 225-235 (true) km / h. , which appears to be the natural cruising speed on highways without traffic. If I had remembered that the Motor magazine had been unable to time its test car accurately, I would have attempted a race in both directions, but I confirm that the estimate around 260 km / h is a fair enough good guess. But what perhaps impressed me the most were the brakes, actuated by the Citroën high pressure system and incorporating ventilated discs on all four wheels. Since the car weighs more than 1.5 tonnes, what they took on the mountain roads where I drove, without losing any of their efficiency and their progressiveness is quite incredible ... "