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Can a different distributor be fitted to a 16v 1.7 33?

 
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BigAl
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Joined: 06 May 2003
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PostPosted: Fri Mar 09, 2007 11:47 am    Post subject: Can a different distributor be fitted to a 16v 1.7 33? Reply with quote

The reason I ask is because the little mark on the distributor that indicates the no1 cylinder (driver side front) is in the wrong place, its pointing to no3 (driver side rear). Has sum one fitted the wrong one? If they have and I fit the correct 1, will I have to retime it? Or will the recess (at the bottom of the distributor) slot in the correct place? and point to the no1 position?

I found out the hard way when changing the last 2 HT leads, I took off all the leads, not noting how they were originally and when I put on the new ones the correct way, the car misfired.

I’ve been told that to time up the 33's you have to take off the sump, remove the oil pump and reinsert shaft to distributor in the correct orientation. Bearing this in mind, surely someone hasnt gone through all that.

I don’t fancy doing all that after I’ve only just replaced the oil pump collector, as mine had snapped, found that out when I did an oil change and decided to bash out the dented sump.
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stedee
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PostPosted: Fri Mar 09, 2007 2:05 pm    Post subject: Reply with quote

maybe some one has fitted it 180` out, i`m not sure it is possible to do this - just a guess.
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Bellamachinna
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Joined: 12 May 2003
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PostPosted: Fri Mar 09, 2007 4:06 pm    Post subject: Reply with quote

Hi...

I had similar problems, with a previous 1.5TI. I had to convert it to use a Bosch distributor, and coil, instead of the original Magnetti Marelli unit.
Even the wiring connectors, were diferent and needed adapting...

However, after fiting the distributor, the car didn´t start and misfired badly.
After scratching my head for a while, i tried to invert the ignition leads, (altering the ignition order)...
The solution was easy...
Instead of removing the sump & oil pump, i removed the distributor, and on the base of it, removed a pin that "locks" the bottom piece of the distributor (the part that "connects" with the oil pump).
Assembled the distributor back with this piece rotated 180º, to his original position.
The car started first time.

I presume that 16v distributors can be disassembled like the ones from series 2...
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BigAl
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PostPosted: Fri Mar 09, 2007 4:37 pm    Post subject: Reply with quote

Now that’s what I thought, I was in the middle of taking the distributor off and was going to look for a locating recess bit in the engine, instead of the distributor, take it out and move it to the correct position. This info was given to me by another alfa guy (75 specialists), I called my alfa garage (33 specialists) for advice and they said that the only way is to do what I said earlier. I didn’t look any further. My car runs ok, ht leeds look weird though. Will it cause any problems? I just remember when I had my car on the diagnosistics, for mot, the advance was well up on what it should be.
Anyone done anything similar on a 16v??? to confirm or deny?
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bobbber
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PostPosted: Fri Mar 09, 2007 4:42 pm    Post subject: Reply with quote

I didn't think the dizzy had anything to do with advance on the 16v?

Bob
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Bellamachinna
Alfa 33


Joined: 12 May 2003
Posts: 352
Location: Lisbon-Portugal

PostPosted: Fri Mar 09, 2007 5:26 pm    Post subject: Reply with quote

Quote:
My car runs ok, ht leeds look weird though


They look weird, and can break internally easily... Rolling Eyes

Quote:
I just remember when I had my car on the diagnosistics, for mot, the advance was well up on what it should be.


On the 16v, the distributor has nothing to do with the advance of the ignition. Just to exemplify, loosen it and with your engine running, turn it one way or the other...
The ECU compensates automatically...
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BigAl
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PostPosted: Fri Mar 09, 2007 10:31 pm    Post subject: Reply with quote

ht leads are new, not in any twisted order, shall I leave it then? Might look on another 16v and see where the mark is (supposedly for cylinder 1). In tdc rotor arm points to little mark, but that mark is on clyinder 3 instead of 1
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Bellamachinna
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PostPosted: Fri Mar 09, 2007 11:30 pm    Post subject: Reply with quote

In my opinion, you wouldn´t loose much if you tried to "invert" the distributor...
That way you could have a "normal" firing order. Imagine if you take your car to a "normal" mechanic, and for some twisted reason he needs to disconnect the leads....

He simply will never be able to start the car again Laughing Laughing Laughing

Otherwise you can leave it, that way. (but -again, my opinion- i would only leave it alone, if the only way to do this is removing the sump & oil pump)
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BigAl
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PostPosted: Sun Mar 11, 2007 2:44 am    Post subject: Reply with quote

I hear that, dont fancy doing all that work, which might not be needed if an incorrect dizzy has been fittted, when i could have done it when i changed oil pump pickup. Thanks for your input peeps.

BTW i fitted my fastech chip today, seems a bit smoother, sounds nicer but stil seems flat.
Before i put on the last new original alfa HT leads, my car was rampant. I had some silicon leads that i knew were leaking on the front 2 cylinders and the new type original alfa HT leads on the rear 2 (so it would be easy to change when i got the original alfa HT leads for the front. However, after waiting nearly 3 mnths for them to come, they sent the wrong ones, (what i had already) so they let me have the others, which are the old type (green), makes me think that the green ones are of less quality.
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