Mudder

Welcome!! Don't purchase hoses, yet. What cooling system does your original build have? If it's the original "partial loss" system (no pressurized expansion tank) consider rebuilding the system!! IamScotticus is a walking encyclopedia on many things Kent engined Sevens and he pretty much coached me through rebuilding my cooling system. I am driving my 1999, 1700 Super Sprint very spirited over High Elevation Passes in Colorado or stop and go traffic in Denver and it has NEVER missed a beat. The cooling system, Thanks to Scott, has been extremely reliable. If you want to go that route, very few of the original hoses will work. Also the stuff Caterham offers on its website might be slightly different than what you have on your car. It will be a waste of money if you plan on a cooling system modification. No worries, it's not a major project, but most definitely worth your while. What shape is your engine in? Cheers

Okay! the first measurements are taken. NSXguys Amazon recommendation might be the ticket, in deed. My Magneton seems to be unoptainium. There is only one supplier in the US and they don’t order spares anymore. The size matches my old “original” alternator and the clocking is as close to perfect as it gets. Even the bracket fits. It might just be a dream which rarely happens in my Brit car experience, but so far so good. I’ll install the Amazonia Version next week and report back. And I am in the process of rebuilding the original. Many Thanks to NSXguy and all the others who helped to get the current flowing again.

I'll provide the measurements as soon as I am back in CO.

No worries I am always trying to safe everything original!

I will. Thanks for posting!

Here are a couple of shots which show the size difference. in comparison the “original” alternator (left)which probably was a mid 2000s replacement, because Caterham supposedly used Magneton Alternators during this time frame demands a blood/skin sacrifice where as the Geo Metro (1996) one leaves the mechanic’s hands somewhat intact. see for yourself the clocking of the new alternator will need some bracketeering!

Nice Fabrication!!!! As soon as I find some time I'll send pictures of the brackets installed without the "Boat Anchor"

MV8 hit the nail on its head. There is NO space. I pulled the alternator today and it barely (as in nearly not) cleared the exhaust/frame/ steering column. The Geo Metro alternator got delivered and it seems somewhat smaller but needs bracket fabrication. My suspicion was correct. The front bearing on my Magneton Alternator is shot. That's were the ringedinging was coming from. I will try to get the bearings changed for right now. The bracket fabrication will be next (winter project). Thanks for all the help so far.

MV8 Thank you very much. Great advice. Working on it!!

That made me smile! thanks for sharing!!

Dear Seveners, I think one of my alternator bearings is going south. The alternator is still working, but the tiny bell like sound (ringeding) it produces drives me nuts. The sound could come from somewhere completely different, but I am getting tired of this Wild Goose chase, so I decided that I will start with the alternator. I would like to replace the unit with something I can easily get off the shelf. Reliability and availability are my main objectives. My Seven is a stock 1999 S3 1700 Super Sprint (LHD). Four in one stock exhaust. The real estate for the alternator is very limited and I am not sure whether it is the original unit (see attached picture) All the attachment points look very much stock. There is an angle iron attached to the bottom of my engine block, which serves as the mount for the two alternator bolts on the bottom and there is the usual adjuster at the top which mounts to the front of the engine. The electrical connections are three spade connectors which seem to have the cover/housing missing. The Alternator is a MAGNETON 14V 55A unit made in the Czech Republic. Part number is 443 113 516 709 Additional code on the sticker: 20D9 (could be a date code) I searched the Googles for a couple of hours, but cannot come up with a matching unit. I contacted MAGNETON, but haven't heard back If any of you has one of these units (working) for sale I would be happy to purchase it. Preferred option is however to come up with a "better" solution. Thank You!!

Thank you so much to everybody who chimed in. Still trying to find a cost effective AFR logger. The Innovates are kind of up there. well, it will be a worthwhile investment.

Removed!

I temporarily plumped a fuel pressure tester right after the fuel pump and my mechanical out put is 3 psi, revving it to 2000-4000 RPM With the Holley regulator in line my pressures are bouncing between 2 and 3 psi in the same Rev. range The regulator is a Holley 12-804 . It's difficult to get ethanol free gas around here. 91Octane comes as E10. I am at high altitude (8000ft) and I will try to jet it down a bit. Thanks!!

I talked to Innovate and they couldn't tell me where to install the AFR sensor on my 4/1 no cat setup. The Tech Guy was worried about wrong readings. I'll try Performance Electronics next.