IamScotticus

I think I heard it before, but, Are the coolant heater hose pipe taps in the carb manifolds and the pump BSP , NPS, or NPT? I thought they were BSP but I don't see the washer shoulders, and everyone Ive seen are fitted with NTP fittings, wright or wrong. The OE Ford fittings I have are tapered. The new manifold and pump I have appear to be a straight thread, although an NTP will thread, but not very far. I would prefer BSP or NPS to avoid cracking.

How many times can those tires be re-treaded?

I just made damn sure I got a 7 before I got married. @38

Definitely NO! Heaters are a required road safety item in many jurisdictions in Europe and elsewhere. Is it required in yours? It's probably simpler for Lotus & Cat to just build them in the cars, unless sold strictly as race kits. Even in the cold, there isn't any warmth from the waist up. With a hood in place, the engine heat is often sufficient. Keep the room on the bulkhead!

That's an excellent suggestion. And a good excuse to put an elbow on.

Hello, Its time for some updates on the subject. None of this is new, just new to me. I want to make it clear, the Cross flow open coolant system works, and if the radiator cap is working and the recovery tank coolant level is kept adequately for cool down return, and all the functions of the radiator cap are working, the open loop system works very well. My reading about the merrits of the closed loop system has convinced me that the purpose of it is to eliminate many of the points of failure of the radiator cap. My research has also shown that plastic expansion tanks and the pressure caps can have a high failure rate, depending on quality. These can have a greater failure rate than an open system. A plastic expansion tank will leak from its seams and caps will fail allowing boil-off. You should usually see evidence of this from pooling or seeing coolant level loss in the tank. When possible, buy OEM quality for these. Another option is use a metal surge/expansion tank and pressure cap. These have the advantage of absolute reliability and caps are available in a variety of pressure rates. The open system can be a silent killer failing to drawback overflow or a cracked cap gasket letting loose at the worst possible time. (ask me how I know) Pick your poisons. The only engines Caterham have used open systems on have been the Kents. I am not pursuing a metal tank now but if I did, https://www.carbuilder.com/uk/horizontal-header-tank-bottom-brackets https://www.carbuilder.com/uk/horizontal-header-tank-rear-brackets And there are other good tanks. Moving on... I have sourced some new parts for the closed conversion: Amazon, of course And: Fiesta Mk2/3/4 PN:6814635 Samco Sport Hose kit: The hose kit comes with 3'7" x 5/8" heater hose, perfect for the smaller expansion tanks. That length is the length from the rad mount to the footwell shelf edge. Maybe a little short for a scuttle mounted bottle to a lower hose Tee, but adequate for anywhere else. No top bleeder hose. https://samcosport.com/product-category/car-kits/caterham-7/ Lets discuss this tank, the Rover series 200 & 400, PN: EAP8713, and its cap, Rover PCD100160. It was used by Caterham on the K Series, Sigma and early Duratecs and mounted on the front top chassis cross tube. It's a fine tank but I found the Crossflow is mounted too far forward to use it on the provided brackets. The hoses would be touching and there may be a height problem too. If mounted high enough to clear the Fiesta TH, would it clear and fit under the nose? Plenty of room for the K Others have been able to use the 200/400 tank on the scuttle. Notice the cap appears to not be the standard Rover cap. Notice the fiesta thermo housings used. Where do those "7" branded cases come from? I like this Rover 200/400 tank but it's getting hard to source. The pressures for the Rover caps are ideal, in the 100 bar, 16 psi range, and the mid point fill volume is 20oz. I would prefer a taller and narrower tank to keep slosh away from the cap. 5/8" outlet. Failing other options,I will use it. The Rover 600: Used by Caterham and Lotus. Uses aforementioned Rover cap. Also used on the Lotus Elise. There's your cool Lotus connection. I really like this tank, but those stubby legs are worrisome to me. Cat parts still has the bracket The 600s close cousin, the Rover 25: Longer legs are probably an improvement. The ubiquitous Land Rover Freelander: Used by CC on everything after the Rover 600 tank. The mount for this crews into the boss in the center of the top cruciform. You always wondered what the was for, didn't you? There are other options.. The Westfield standard appears to be Opel Corsa: The Dacia Duster / Renault Kangoo I heard from one other L7C member that uses this tank on his/hers BDR. 21psi cap. I found some other miscellaneous Crossflow applications: Birkin, I believe. Anyone know this tank? As for how to plumb, the tank flow is top to bottom. The top inlet nipple is usually plumbed to a high point such as a radiator air bleed or thermostat housing. The bottom outlet is usually plumbed to the cold side between the radiator and pump inlet. It needs to be on a suction part of the circuit where coolant will be drawn out of the tank and thus, pulling air & coolant from the bleed hose location which no longer needs to be the high point, but it helps. On a Crossflow, if the pump heater inlet pipe is available, use it. If a heater is plumbed, tap into the return hose going to the pump. If running a straight line from the carb manifold to the pump, tee into that. But not if using a coolant controlled carb choke. If neither heater circuit is available, tee into the lower radiator hose. Because an expansion tank is never completely filled, the air gap retains the purged air (closed) and excess pressure is vented out the cap, which should be the highest point of the system. The coolant is allowed to expand and retract and contain sudden acceleration surges within in this vessel. In the UK, Crossflow closed system kits have been sold by Arrowstar and James Whiting.

This is now the most popular thread on the forum Hey,Croc, can you get some adds on here? OK, I'll play...nicely. So a lot of people don't like DJT. A lot of Republicans don't like DJT. Consider popular past presidents, or political figures over 150 years ago, say, George Washington or Teddy Roosevelt, or anyone on Mount Rushmore, or even the unpopular ones like Grover Cleveland, and many others. All we know about them is what was recorded in the papers, writings, maybe some folklore. Certainly not the vast muntia of personal details that are routinely, ruthlessly and irresponsibly exposed on today's mass media. I propose that any of the greatest men in past, if were subject to today's scrutiny wouldn't just have mud on their walls, but mudslides. It is also very possible that many of the most least popular men, political and performance failures, if throughly scrutinized, would be found to be very morally respectable men. I understand Jimmy Carter was such a man. We alll know about that presidency record. But what do people know about Jimmy Carter, the person? It all just shows that the job of the presidency and the climb to the top isn't for everyone. It takes a personality, a skill set, and a team to get there and do well in that office. Unfortunately, the nice guys don't seem to do very well. Its very alarming to those who think about it, and to people all over the world, that the leader of the most powerful economic power house and commander of the most formidable and advanced intel, military, and possibly reverse-engineered ET technology(1), Is someone most people choose based on what they see on TV. (1) The jury is still out on that one, but I believe the Gov't likes to tease it up.

Or they just want you to hear them talk... Regardless, this is a really commendable event intended to communicate with the Caterham 7 owner base. The Webinar, a Zoom meeting people can watch on the internet, will have a Q&A. The registration page has three lines for question submissions to ask the senior CC mucky-mucks. Like, will you allow Arch to produce low volume parts to individuals that CC isn't interested in supporting? Or, will CC please support the live axles? Or, When will CC learn its lesson to not dump money into dumb projects that don't produce anything profitable? (21..Beautiful car) The event will take place Feb 22 at 13:30 US & Can Central I believe it is limited to Cat&Lotus7 club members. https://us02web.zoom.us/webinar/register/WN_zYpC9yV1SGipnhY8jCK29w

yes, many choices.

We don't get to see this often

Thanks, Bill. I have the PAX side tractor battery tray. I will be doing some modifications that eliminate the room for a battery there such as an extended footwell and dry sump tank on the end of that. With the batteries getting smaller, lighter, and available in various shapes, I hope to find one to fit in some of the available boot space in a Imperial LC live axle 7. The scuttle shelf is always an option but Im trying to keep it clear for fluid tanks, etc.

This wing stay has been caped on the end and painted. Put a magnet on that end cap.. is it plastic? probably. Whoever did the paint probably filled and sealed the holes, if the holes were there. And it was black. Bball"s 98 wing stay is tubular so it has a flat tab welded on. the BDR is square, like mine. It is drilled for a bolt. Standard 7 equipment up to the 90s.

Oh, boy. Barnes & Noble in my area hasn't carried this magazine for years. I don't know where else to look in Houston. The days of large periodical sections in book or electronic stores, or grocery stores are gone. Any help?

Rear hump panel very standard. Front of tunnel changed wirh the different shifter extensions used.

I agree to not group Caterham in with "other 7 replicas". I suspect users may have suggested (complained) that they don't want to see other replica brands if they are focused on a Caterham, or Lotus likewise. There are alerts available for Westfield, but not Birkin, Rotus, Dax Rush, stalker, or Robin Hood.

Get yours today!

Life's too short to drive boring cars. Honestly, I understand if you got play money, it's your money. But there are plenty of good running 7s that come up for sale for half the price. You don't have to be seven-less.

You can't strap a baby seat to the rollbar?

if you were shipping by weight, you could have had two

In my search for the perfect expansion tank, or bottle, or header tank, I have found this one that has been used by Lotus on Rover K engined G1 Elise and Exige and by Caterham on various 7 around 2015. Lotus part number A111K6004F. Uses cap A111K6001F and bracket C111K0003F. Rover 600. Available from Lotus and Rimmer Bros. If the Loti becomes unobtanium, there is a close second, the Rover 25 tank, PCF010086 (thanks, Roadsport06)

Jim, Look at these offerings. I would call Rimmer to ensure compatibility These are Dolomite but be advised the "Sprint" parts don't cross over. https://rimmerbros.com/Item--i-GRID008479 Since there is a reconditioned diff with a Quaife installed, If you ask, they might build you a 4.1 with a Quaife TBD installed. Having this done professionally is worth the expense. There is a January 16.67% sale at Rimmer on orders over 100 BPS

Here is mandatory reading on the Ital. Which you may find you actually have a Marina by the hub key size. Although Cat always claimed they were Itals. 2017_11_04_Ital-1.pdf 1993_03_05_Ital.pdf

the Ital axle is capable of handling power under 200hp without a brace. Nobody has broken an Ital with 100hp. Half shafts walking out from curbing and latteral hammering from worn A frame bushes, yes. But not from any 1600 OHV Kent engine. All the Itals supplied by Cat with the Xflows were 3.64. They thougt it to be a happy medium between performance and road cruising. Its the ratio I have on my 100hp Xflow and I find it adequate. Build up the Ital, consider removing the brace to reduce the weight, and hunt for a 4.10. There is a Quaife torque biasing diff, QDF8K, or Black Line HLF070 (china copy) to upgrade. Also, Jack Webb only needs five orders to turn out a run of upgrades for the Ital. https://jackwebbmotorsport.co.uk/Marina-Axle-Upgrade-p442913283 Im on board. Did you know... The Escort axle is 33 lbs heavier than the Ital!

MV, The way I read it, its the 10 that is a shambles. The Ital was obtained as a replacement but Jim is thinking the Ital gearing is too tall. He wants to replace the 10's case with the Ital's. I think that's the idea. Agreed, with a short cockpit, an Escort axle would have the best spares and aftermarket support.