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87 Gt Hatch, 16 Valve Project


Sutty2006
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You'll be fine, as long as you don't chop into any of the bits that are inside the pvc loom tubing (which is pretty obvious when you're working on it) then there's nothing that you'll cut that is tricky to sort. They are pretty simple things.......now the subaru rally car that we've just re-loomed, on the other hand...........argghhhhhhhhh!

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I feel sorry for you then! I hate wiring..... even though im a HGV technition by trade. Work keep sending me on electrical courses but they just dont get the message that things like ohms, resistors, can lines, data lines and all out electrical cr4p really blaggs my head.... im no sparky. If i cant whack it with a massive hammer then i dont wish to know.... infact, I took the fuel pump relay out by pry barring the fuse box over with a 2ft pry bar! lol. Ive even been known to adjust alternator belts on old ERF's with a lump hammer...

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  • 2 weeks later...
  • 2 weeks later...

Then swapped over the important 1800 parts to the XE, but giving the sump half an hour in the steam cleaner before it was fitted. Also had the XE flywheel blasted and skimmed very lightly.

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Was going to do a bit more this weekend but the weather is cack. :(

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  • 3 weeks later...

Shiney exhaust fannymold turned up in the week from retropower (cheers dudes, its one hell of a fannymold!)

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test fitted to engine

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Looks awesome :)

Set to taking the towbar and fuel tank off....... only to find the injection tank I bought last year is as sealed as the titanic...

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Both tanks together.

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So its back to the drawing board. I need to run a return pipe to the tank, any ideas?

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I've pondered the carb/injection tank problem, for injection not only is there a return pipe but the pump draws a large volume from the tank through a large bore pipe to convert to pressure.

I have often wondered if you can use a Carb tank and simply put a 'Y' connector in the pipe from the tank so as the pump receives fuel from both the tank and the return line, the 'Y' connector would be a problem to create as it would have to be two small pipes feeding into a large pipe.

I dont think there would be a need for a non-return valve in the line from the tank, the engine is using fuel so the pump is putting out more fuel than it is getting back from the return line so it would be drawing on the tank line all the time as well.

This seems a very simple solution so there must be a flaw in it somewhere, someone with more intelligence please tell me where i've gone wrong !

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that would not work ian as its a pressurized input and the return is just normal flow, easy option is do what daz did on his coupe tank and pop a return on the carb tank, maybe on the fuel neck?? if u put a y peice in it would pressurise both feed and return,

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It did cross my mind Ian but like mickappy says the return needs to be normal flow as the feed is highly pressurised. Also there will be the need for a swirl pot if I use the carbed tank due to the high quantity of fuel demanded from the sender. Injection tank should have this built in. I don't want to start using swirl pots and lift pumps, it all seams a bit too much.... So if I can't find a decent hatch injection tank I might have this one rebuilt. Cost a fortune but at least it will look better :)

Oh and the engine is in now :D

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Mickappy - don't get what you mean by pressurized input, a fuel pump has a pressurized output.

the way i see it on a normal injection system the pump sucks a large volume of fuel from the tank through a large bore pipe, the pump then converts this to pressure and sends the fuel to the engine which uses some of the fuel, the 'head of pressure' is maintained by a restrictor in the return pipe after which fuel at a lower pressure and volume returns to the tank.

what i am proposing is that the pump sends high pressure fuel to the engine, a 'head of pressure' is maintaian by a restictor in the return pipe as per a standard injection, but instead of the return pipe going to the fuel tank it goes back to pump to be re-pressurized and sent back round to the engine, but as the engine will have used some fuel the differnce would be made up by a pipe coming from the tank and joining the return line before it gets back to the fuel pump, the fuel pump getting enough fuel by drawing (sucking) on both the return line and the pipe from the fuel tank. this way there is no need to have a large bore pipe coming from the fuel tank as it only has to make up the difference the engine uses.

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I don't think the return line into the fuel feed to pump works right, i'm sure i read that because its pressurised it messes up the feed from the tank and can cause fuel starvation at the pump. This wasn't something i read online either it was from a magazine and i seem to remember it was from Dave Walker in CCC in one of his rolling road report articles.

Can't quite get my head around it as fluid dynamics never made sense to me half the time :wacko:

Anyway i think the simplest solution is to fit a return line to the level sensor fitting plate using something like this

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But install it in the injection pickup/level sensor which has a larger diameter feed pipe, and fit it to your good old fuel tank.

You won't have the little baffle around the pickup that the injection tank has, but this really only has an effect if you are low on fuel and throwing the car around so the pickup isn't submerged.

Which can be fixed by not running low on fuel ;)

Or if you were going to use it on track days etc you can baffle the tank with foam or similar products but this is so expensive you'd be better off having a custom alloy tank made with baffles in it.

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I have contemplated the t or y piece idea before, it won't work as far as I can see.

To be fair, once all primed, it actually should, but the problem is any air in the system can't escape, as it has to make its way up into the tank via the same pipe that the fuel is coming down.

it "might" work but it would be a bit iffy as it would airlock very easily

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engines in anyway...

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At first attempt, exhaust manifold wont go in while the engine is bolted to the mounts. Might have to either raise the engine enough to slide it through the gap or remove the brake bias valve to give enough clearance.

Then the hard work starts wiring it all up.... :(

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brake bias valve bends nicely to the battery tray area. well out of way of the heat from exhaust.

why not get a quote for a new tank in alloy from one of the places on e-bay that make their own tanks for rally cars. might get a supprise in price.

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  • 2 weeks later...
  • 2 months later...

Well, the heat is on.

Yesterday this engine fired on brake cleaner momentarily. Today I'm fitting the high pressure pump and fuel lines, changing the oil and filter, filling the gearbox with oil and changing the starter motor. I used the 1.8 starter instead of the c20xe one, which doesn't like engaging the flywheel.

Cars booked in tomorrow for a full Powerflow, then Tuesday for its MOT, Wednesday for final tinkering and adjustments before hauling its ass to billing on Thursday.

Cutting it fine!!

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Brake servo pipe fits straight onto the xe inlet manifold, only mine was splt, so had to repair by raiding the breakdown van for some truck pipe..

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High pressure fuel pump ready to be mounted to a bracket under the car

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Sorry this next pic is upside down. Its the right way up on my computor but photobucket has turned it round for some reasona and wont let me edit it.

So I saved the throttle cable from the Corsa I ripped the engine from. Fits straight on, no modification.

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Pushed into next doors garage to use the ramp. Easier access today.

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