开云体育

开云体育

It may take a couple of heat cycles to fully bleed so check it regularly for a while and top up as nescessary.?

Toaph,

Go to the groups home page:
/g/S1S2euroS3LotusEspritOwners
In the left margin you'll find a list of word-links. Scroll down to 'Files' and click on it. Basically the same as on YahooGroups.

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The Esprit's cooling system will self-bleed, as noted. However, it doesn't happen immediately, and may take several heat cycles/ drives to fully bleed the system. As the air burps out, the coolant level will drop. So check the coolant level in the header tank before each cold-start/ drive over the next few days, until the coolant level stabilizes at 'full'.

Alternatively, you can bleed the system in one session.

Starting with a cool system, remove the pressure cap from the header tank. Add enough 50-50 anti-freeze mix to make sure there's a couple of inches in the bottom of the tank, but do not fill it. If you fill the tank full when cold, the coolant will expand as it heats up, overflow the tank, and make a mess.

Leave the cap off, and start the engine. Let it idle long enough to heat the system up to full operating temp... keeping an eye on the temp gauge as it does.

When the engine starts, the coolant level will drop a little. If you can then see the bottom of the tank, add a little A-F mix. As air burps out, the coolant level will drop further. Keep checking the level, and add a little A-F mix as necessary to keep a couple of inches showing in the bottom of the tank... but don't fill it.

As the engine/ coolant temperature rises, the coolant will expand, and the level in the header tank will rise. That's why you shouldn't start out with a full header tank. A few inches in the bottom will leave room for expansion without over-flowing and making a mess.

When the thermostat opens, the coolant level in the header tank will drop a little. If necessary, add a little A-F mix to keep showing a couple of inches in the bottom of the header tank.

When you hear the radiator fan cycle on & off, that's a sign that the system has reached full operating temperature. Allow the fan to cyle on-off a couple of times, then check the coolant level in the header tank. Add enough A-F mix to bring the level up to full. Install the pressure cap and tighten it securely. You're done.

Regards,
Tim Engel


Jul 1, 2022, 9:17AM, Toaph, <toaph@...> wrote:

Wow, the one thing they make simple. I'll bookmark the link to the files, thanks.

-- Toaph

July 1, 2022, 10:00AM EDT, Bill Galbraith <lotus@...> wrote:

Toaph,

Yes, it’s a simple matter of replacing the hose and refilling the header tank to half to 2/3 full. There should be a small hose from the top of that downpipe to the header tank that effectively bleeds the system for you.

Files are at: /g/S1S2euroS3LotusEspritOwners/files

Bill

My method , although can be messy, eliminates the need for cycling.
remove the heater hose that connects to the rear of the head .?

Use a spare length of hose around two feet in length and push it on the hose connector near the head, no need to clamp?
you will now have two open hoses , hold them up high and fill one of them with coolant until the coolant emerges from the other hose.
quickly, remove the spare hose and refit the heater hose back then re-clamp