Quote:
Originally Posted by CNGBiFuel
Sorry, my er.. attempt at humour may not translate. And I think you do a better job with English than I ever would with Italian, so my apologies.
That thing really is in a 'nice' position. I had heard it was awkward but never have I worked on one. I have worked on the ECM and steppers. But on my test bench. I am an electronics engineer working on hydrauilic control systems, so the Necam unit is similar to these systems.
I feel sorry for you.
Mine is a three minute job. You would only want to strip yours down once. Looks like a 2-3 hour job or more. I am guessing it is easier to remove the radiator than the inlet manifold, but I may be wrong. There is advantage in removing the manifold, in that these cars need their PCV breather system replaced at 100,000+ miles. This is also found under the manifold.
I do know the distributor is held on via 2 x rubber mounted bolts. If you can get to these maybe you get more space. But your knuckles, not mine.
I can see why you will fight for a chemical solution, I would too. Only as said, I think your chances of this being successful are not good.
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Quote:
Originally Posted by CNGBiFuel
Sorry, I do remember one bloke I sold a stepper motor to was telling me to get at this using a 10mm spanner to undo the dist. rubber mount. Loosen the gas distributor from the engine block. This allows you to move the dist. slightly to the right. Then you can get to the stepper 3mm Hex. You do not need to take out the rad. Hope that helps.
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No problem with slang, don't apologize!!!
The pack of radiators creates a problem, I should empty R 134 of AC and the water of cooling system. The manifold removal foresee the disassembling of petrol rail and LPG injectors, plus other devices (debimeter): I remember when once I removed the manifold (during head gasket replacing) wasn't easy: ever the same space problem...
The two rubber mounted bolts it's a very good idea: I tried just one time to remove them but I stopped because the wrench has really few space for rotate (it's strange, in a such spacious engine compartment ...!!!).
The solution you propose seems to to be actually the most viable, I only have to search for a proper key for bolts with a different handle.
Anyway, yesterday I made a test...
In the morning I bought an injector cleaner for PETROL; at lunch time I unplugged the LPG pipe feeder from filter, I poured 10 tablespoons of cleaner in the pipe and remounted it.
I started the engine in PETROL mode and I immediatly stopped the engine when it switched in LPG mode.
After a couple of hours I started again the engine in petrol mode.... When I have switched on again the engine in LPG mode a dense smoke has flown from exhaust pipe: it smelled like a candle soon extinguished (burned wax), the engine has coughed but in a few second has burned the cleaning liquid and quitted smoking. I went at home without engine cut off.
This morning the engine, once started, has switched immediatly in LPG mode (instead of waiting the usual 30 seconds), the idle was at 1500 rpm (instead the usual 750....) and the sound was different (a hollow sound); the "behaviour" was very rough and responsive.
On freeway I could appreciate a "new car", it reached a torque, speed and acceleration never experimented before. At the moment no cut off, let's see on way back home... and let's hope....
It's obviously too early to tell anything, but I wanted to keep you informed.
P.S.: you said than on manifold there is a PCV breather system: what is and how can I recognize it?
Thank you!