There is really nothing weird with this kind of engine. It is rather straight-forward 4-cylinder EFI OHC European design. A rather simple one as well, compared to say SAAB B204 or such. Throttle is cable operated and ignition is conventional dizzy + Hall sensor type.

As always with turbocharged engines, air leaks are no-no. I fabricated an adapter by glueing an air nipple on hockey puck, which I jam into rubber hose going into turbo and pressurize via air compressor.

I would wait with investigating mechanical noises until fiel/ignition is solved and engine runs. The tapping noise can easily be something like stuck valve lifter. In order to try to "unstuck" it, you usually need properly warm engine and oil pressure. Also, considering grime and rust on cam lobes, I would change oil & filter after first proper drive.

You were right. The return line was plugged. I was surprised there was so much pressure in the line. It was plugged at the bottom of the tank unit. It cranks a lot better, no more locking. But still no start. How do I check the FPR? It's in such an awkward position. It's a PITA to remove.


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If your return line was blocked, you flooded the engine and your plugs are likely fouled. Before you go any further, I suggest following:

- pulling fuel pump fuse (so you do not dump even more fuel into engine)
- remove ignition plugs and dry-crank the engine to spit out all excess fuel from cylinders (and clean up the plugs themselves).

Once that is done, make sure you have spark. If yes, reinstall fuel pump fuse and try to start the engine again. (be advised that ECU must be able to measure head temperature in order to enable cold-start enrichment, so if coolant temperature sensor is for some reason not connected to ECU, make sure it is before you try to start it).

If you still have trouble starting the engine, you can proceed the troubleshooting by measuring the fuel pressure. You can basically measure fuel pressure anywhere between fuel pump and BTR. Usually, there is a tap on the fuel rail bade specifically for this. Otherwise, you can fit a T-hose on incoming fuel line and connect pressure gauge. Fuel pressure should be whatever pressure is in intake + 3 bar. Thus, if 0.5 bar of vacuum is present in intake during idle, fuel pressure should be 3 - 0.5 = 2.5 bar. At boost, it should proved 3 bar "above" boost pressure. Be advised that there is a thin rubber hose between intake and BTR. This hose must be leak-free for BTR to operate correctly.

If fuel pressure is still wrong, then either BTR is stuck (or ruptured) or air signal feed to BTR is leaking. BTR is nothing but a cup with spring-loaded valve, actuated by air pressure and bleeding off excess fuel into return line. I believe BTR is held in a rail by round clip. You just loosen the C-clip and pull out BTR from the rail "cup".


P.S.
It is slightly worrying that you experienced fuel "hydrolocking" when cranking the engine. There is a risk you bent a rod (yes, you can do it with starter only). Let's hope your valves were leaky enough not to let this happen. Also, oil level is probably a bit higher now with all fuel that went past the rings...

I believe this is FPR. Thin nipple is "pressure signal", side pipe should be fuel return to tank and bottom of FPR is "pressurized" side.
http://forums.pelicanparts.com/uploa...1469877084.jpg

This seems to be some other kind of FPR than I am used to (Weber instead of Bosch), but it should work the same...

Thank. Yes I know to pull the plugs and evacuate the combustion chambers. I'll see about swapping the FPR. Or cleaning with brake clean and wd40.


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I spent an hour today on it. I pulled the FRP to find almost nothing in the return line. From the pump through the injectors and to the FPR was loads of fuel and pressure. I took the FPR off the old engine cleaned it and tested it with a hand vacuum pump, put some air through it and it opened. But put it on the car and same thing. After tapping on #2 injector it opened and is firing now. I pulled and cleaned the plugs, evacuated the combustion chambers and still same. Cranks, farts then hydrolocks. I am getting spark. The mechanic who helps me sometimes verified in a somewhat humorous why. I repaid him by helping him remove an AC compressor from a Lexus GS. Here they all came with the Supra Turbo engine.
I wonder why did it start and run before I changed the dizzy cap and rotor.
Why did I have plugged return line, now almost nothing in it. The FPR should let something through. I swear I will never touch an Italian car ever again.

You are probably flooding the engine due to injectors being forced open by stuck FPR and filling the cylinders with fuel. Other alternative is that ECU is fried and keeps injectors open 100%, thus dumping all fuel into cylinders.

Check if injectors are cycling when cranking. If yes, energize the fuel pump manually (without cranking the engine) and check whether you have 3 bar in the fuel rail (all excess fuel should be flooding back to return line if injectors are not opening)

There is nothing magic or "Italian" with this engine. The fuel system works on same principles as in any other American, German or Japanese car between mid 80's until entry of direct injected engines couple of years ago. Your problem seems to be that you are trying to revive car that has been sitting for long. Unfortunately, you do not follow general trouble shooting pattern but throwing things at the wall and see what sticks.

I have revived long standing dormant cars from a 74-BMW 2002 turbo, 78-450 SL, 77-911
86-944 turbo, 89-944S2, 90-928, etc. I have never had as much trouble with this car. Even the mechanic is stumped. Timing, ignition, fuel all check. What I don't get is it ran before putting coolant and dizzy cap and rotor. I am really shocked at the material quality and design logic between this and the German equivalent.


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I saw that video. He did not do a head gasket as I am.

I double checked fuel pressure regulator, some fuel is passing through, strong spark, clean plugs, power at injectors. So the only thing else is reset the timing.


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After taking a month off due to constant rain, I confirmed 3bar of fuel pressure I swapped the inhibition wires at the cap at the ***** started and idled smooth.
But still hard start with long cranking. I'll change the oils and button it up and run for my life.


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https://vimeo.com/185089979
Now I got it running smoothly the problem now is the idle air control valve. Pulled it the car idles at 3000rpm. Unplug it when warm and it runs well. The next challenge is the flush and purge the cooling system. Seems there is a lot of air in there and I can't find the bleed screw.


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Filled the ps reservoir to discover one hose split. That was fun replacing the hose. Found the coolant bleed hole on the top of the radiator. Now the radiator fan doesn't work.


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Thanks for the ongoing updates - I think we all want to see this Integrale back on the road.

And out of your life. What you're doing would drive me crazy...

Just a wee bit more. Found I connected the wrong connector for the rad fan. Who makes a rad fan coupler and headlight coupler the same size? So now the fan works but she boils over when I shut it down.


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https://vimeo.com/187081187


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Yesterday I finally got to the Lancia. Last 2 weeks I did a rear main seal on a Benz W210 E430 4 matic, easy. All 4 brake pads on a 2002 VW Golf, PITA without the rear caliper tool. I cleaned the idle air control valve, filled the transmission, attached the shifter cable then the clutch slave cylinder piston pops out and then no pressure. I hate this car


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This car throws one issue after another. Now the master cylinder won't prime and I see the clutch release arm appears to be out of position. I did the engine. Clutch is their problem.


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Finally I'm done. Clutch hydraulics bleed, shifter linkage, diff oil, 2 engine oil changes, too many spark plugs cleaning. It appears one or more of the injectors are leaking. It starts easily when it sits overnight. But the accelerator must be floored to restart. That's their problem now. Time to get into my 951.


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https://vimeo.com/193797227


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The Lancia is mostly done. It has a high idle problem think it the idle air control valve and the radiator bleed screw broke but otherwise it's runs well. Thanks for all the guidance and encouragement.
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The car is up for sale!
The owner gave me the old engine. Do I rebuild and sell it or sell it in parts or just scrap it. https://uploads.tapatalk-cdn.com/201...480dd74b18.jpg


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How fast can you run?

Haven't you had enough pain from this turd?

LoL. He sweet talked me into working on his C4 vette. No start. I did the Optispark, back and legs are still soar 3 days later. Next fuel pump, easy peasy, then remove the hydraulics the PO put on. https://uploads.tapatalk-cdn.com/201...e298dae8b7.jpg
https://uploads.tapatalk-cdn.com/201...5b88d5cadf.jpg


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You are the PPOT Jonas Salk for Integralitis. Thank you!

I need therapy. I stripped the head last night to carefully check the head. My mechanic told me these heads need to be torqued in 2 stages unlike German cars. That could have been why the coolant mixed. I wonder how much the bottom end weighs. Will it damage my W210 if I use it to move it.


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https://uploads.tapatalk-cdn.com/201...9f25564380.jpg


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Got deep into the head. Stripped, cleaned, dried, red sprayed, cleaned, dried, micro checked NO cracks!!! Next the block.
For your viewing pleasure.

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Yaaa, I was going to say Ed from the Wheeler dealer show. LOL!

He is my hero[emoji177][emoji177][emoji177]


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It appear the cylinder walls and cams are too rusted to be saved without significant outlay. So I'm done. Anyone want it?


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Is this the original engine or the one you transplanted?

The original one.


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Those are quite possibly the ugliest wheels that I have ever seen on a C4.

Nice car to restore. I saw one on the program Wheeler Dealers, I think the host Mike said those cars were like alkasetzer, just add water and watch em' fizzle away. I don't think they discovered galvanized steel yet. Good luck, Bienvenetto! Ciao!http://forums.pelicanparts.com/uploa...1489669550.jpg

I think those wheels are the best thing about that car .. but then I like Hot Wheels toys too:D

I have no love for American cars except the for the Typhoon. I can't believe that was the pinnacle of American engineering. That hood weighs so much!! The interior is impossible tight, leaf spring suspension!!! Some young dumbass will want those 20" Giovanni's.


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https://uploads.tapatalk-cdn.com/201...17e33a59c7.jpg
Is this too far gone?


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I soaked the block in vinegar/water. Stripped it and cleaned all the bits. Put some oil in the bores Going to try to hone it later the week.


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