What was done to my car.

[Enright]

So, in reality, as long as i remove the FCD and MBC and put it through the BSV (abreviation city!!) then i should be ok and it's not likely to explode on me.

In a nutshell, exactly!

[John_W]

So, in reality, as long as i remove the FCD and MBC and put it through the BSV (abreviation city!!) then i should be ok and it's not likely to explode on me.

I agree with Neil. Obviously check for leaks, disconnected or perished hoses etc while you're in there.

Then i can get it to a R.Road and get it set up nicely.

I don't think there's a lot of setting up you can do on the Elan on a rolling road, however the dyno will tell you what power you're getting, and if you log ElanScan during the dyno session, it'll tell you an awful lot more. Also see if they can put a broad-band lamda sensor up the tail pipe and log it along with the power & torque curves.

Do make sure your static timing and plug gaps are correct before going to the dyno. Then post the results for all to see.

John

[Russc]

Ok, had a good scout around the engine bay yesterday while taking the radiator out. The FCD is just a plug in one that connects in between the line so i can just unplug that and put it back together with no problem.

There is no sign at all of the BSV or even it`s bracket. Looking through the manual it appears that it`s got to be plugged in so i need to find the plug as well. DOn`t suppose anyone knows whether it`s a particular colour or not??

[Monty]

Russ,

Just had a quick look and the plug is greyish with 2 wires green and white.

[John_W]

And if lost & gone forever, Lotus have them on sale for £42. Go to the Lotus website here and go to "promotions".

No bracket, though.

John

[Doug]

the BSV is supposed to have a single vacuum-hose-sized output hose that returns to the intake and plugs into the hard plastic short pipe just next to (downstream from) the trash-can

it may be gone, but if you see this then follow it and see where it leads you = to the BSV?

if it leads up the to the oil separater next to the CAS then that is the other line that is supposed to be next to it.

[Russc]

As ever thanks, i`ve got a bsv and a bracket just need to find out where it lives

Unfort i don`t have the usual air filter set up anymore so i`m kind of working blind.

Cheers Monty, i`ll have a dig around for it tonight.

[Russc]

Here`s a piccie of the right hand front (of the dirty) engine bay.

Looking is the plug at the right with the green and white wires (that dives under the light mechanism) the plug for the valve?

[ailwyn]

Russ,

On the air intake, just beyond your custom air filter you'll see a red and black hose coming out, the black hose is the one that should go to the BSV (which would normally be mounted on the air-box shelf), then from the BSV it disappears down towards the radiator, heading in the direction of the oil cooler (i.e. runs from the LH to RH side) but I lose it where it runs under the intake in your picture.

My uneducated opinion would be that the hose you see there would have been from the BSV to wherever it ends up, but they removed the BSV and the hose that went from the intake to the BSV. So, you need to fit the BSV in line - where x marks the spot.

Hope this makes sense.

Ailwyn

[paulwatkins]

Here's a copy of the diagram in the Engine Management Manual which shows how the BSV should be located.

[Enright]

Russ,

On mine the wiring comes from under the expansion tank, by the coil packs and HT leads.
Have a search in that area for a plug covered in insulating tape.
On your picture, where you can see down between the dump valve pipework, I can see a green wire just next to your alarm. That could be it.

[Russc]

Right i`ve had another look around and think ive found the connector to my BSV and can work out the connectors for that.

Now, the pipes that i have go all over the place, i`ve added a little diagram below of where they go along with a couple of piccies taken.

Looking in the manual i can`t see where the rest should/do go.

[Russc]

Yes i know i`m being an impatient sod but does anyone know? or failing that know where i can get the info from?

Cheers

[Enright]

I'd love to help but it's not obvious to me what you mean by "the rest".
Ideally it would be good to know where they come from in the little schematic above, even if they just point into space!

[Russc]

Ok fair enough, i did wonder if it was a little "confused". The parts are the parts and the lines are pipes i have in the car at the moment. I should have put MBC rather than BCV tho (oops!)

From my air intake i have one pipe going to the oil seperator and another pipe going to the top of the charge cooler pipe (the large pipe under the turbo as in the piccie)

From the forge dumpvalve i have one pipe (with the MBC in line) going to the top of the charge cooler (as in the piccie)

I know i have to remove the MBC and run the pipe from the dumpvalve through the BCV and into the air intake, that`s all ok. But that leaves me with a pipe going from the top of the charge cooler pipe to nowhere. (what is that point of the car actually called??) Unless the others are wrong as well.

What i really need i suppose is to see another "normal engine bay" was looking through all the manuals last night and can`t see it anywhere there either

[paulwatkins]

This is getting rather complicated!!!!

I'll try to simplify.

The forge dumpvalve that you have plumbed in, the vacuum hose should be run from the end of the dump valve onto a spare connector on the rear top left hand side of the common intake plenum (the large silver component with 'DOHC 16V' stamped on it.) See picture below. You will need to remove a blanking plug with a finger press circlip! Once you have done this, forget about the dumpvalve!

The red hose that you have running from the corrugated air intake hose to the oil seperator. This is ok. Now forget about this aswell!!

The red hose that you have the mbc connected into.....remove all of this hose including the mbc. This will leave two connections free.... one on the wastegate capsule, and one on the right angle spigot located under the turbo (at the top of the charge cooler hose). Now cut a short piece of hose and install it between these two points. Now forget about this aswell!!!

The other connection on the right angled spigot (under the turbo) should then go to the BSV and then to the other connection on the corrugated air intake hose(as shown in the diagram from my previous post). This is the black hose that Ailwyn indicated with a red cross. The BSV has to be placed IN this line.

I hope this helps!

Cheers, Paul

[Enright]

If this doesn't nail it, nothing will!

I have a re-circulating dump valve on mine, which plumbs the exhaust from the dump valve back into the air filter.

But this is how yours needs to be set up:

[paulwatkins]

You took the pictures right out of my mouth!!!

It took me half hour to type up your diagram!

Good luck Russ

[Russc]

That is fantastic, thanks loads. Just what i was looking for and now i should be able to plumb in what i need to plumb in.

It`s probably easy but i was making it more complicated with my lack of knowing what`s what.

Needless to say i`ve learnt a fair bit through this thread.

Thanks for your patience, i owe you a beer

[dapinky]

But this is how yours needs to be set up:

And here's one I made earlier?