Recent content by hladun

This is for the 3200, but the door wiring should be the same. https://www.dropbox.com/scl/fo/q5crjaj44y6xxdm77n9py/h?rlkey=3vynxlv8xfb0gr7msr90vwxxb&dl=0

I've uploaded a 3200GT set of manuals to Dropbox. The 4200 is similar except for the engine and drivetrain. There's a lot of useful info here. It takes a little hunting but there's a good description of the A/C system along with wiring diagrams...

The cover hood (the door) has a switch on the latches that make sure they're engaged. The latches are adjustable and if set too tight they might not properly engage. That may be why some people burn out the latching motor and it may cause a problem like yours. The manual release behind the...

For an engine with a 100k miles on it the internals look in great shape. It's a shame that probably some of the best engines ever built are sitting idle because owners are afraid to drive them. My Spyder is my summer daily driver so it does get used.

The chains and guides look in great shape, did you actually find something broken/worn out? Most importantly, did this work solve the problem? Can't the hydraulic tensioners just be changed externally?

I'd probably just have a machine shop make them. The non-Skyhook shocks have spacers that might work but that's just a guess. Put some anti-seize or brake grease between the adjuster and washer to help turn it. You might still have to take some load off the spring (raise the car or use...

All for a few pennies. The problem is that the adjustment ring binds on the rubber cushion. What Maserati should have done, and what you should definitely do, is add a washer (like the spacer ring on the normal shocks). You will then be able to turn the adjustment ring with the shock...

I found that some oils foam in my 4200. You can see it on the dipstick. It makes it hard to read the oil level and, more so, foaming causes lubrication problems (check Internet). I now use Pennzoil 5W40 and don't see any foaming...

Yes

Looking from front of engine. Left bank 1 at front to 4 at rear. Right bank 5 at rear to 8 at front. Firing sequence: 1-8-6-2-7-3-4-5

I'd clean the MAF, clean the throttle body, put in some fuel injector cleaner (Sea Foam) and the try an "Italian tune-up".

I'd be concerned about pressurising the system to max operating pressure with nitrogen . The LP side (evaporator, LP hoses and compressor inlet) never operate at those pressures...maybe 100psi (7 bar) at most. Sounds a bit like "ball peen hammer" auto repair too me. As for dryers, I agree...

The first step is to have an AC shop draw a vacuum and see if there are leaks. If no leaks then you need 2.4 lbs of R134a (a lot). It's a sealed system so dryer changes are probably unnecessary unless it's been opened or new parts installed. It's not a Buick so it's "comfortable" at best...

See the two bolts with orange markings that hold the latch. Loosen them and raise the latches. When you press the manual release behind the driver's seat the cover should easily release with a push.

Shocks don't control ride height. On the Skyhook shocks they're threaded and the ring nuts set the ride height. You can't adjust the nuts in place because Maserati left out the washer that would stop binding. This is probably more than you want, but for those who are keeping their cars to do...