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Hi,

I've been reading a lot of threads around engine identification and i'm still struggling to identify the non original engine in my gt junior.

Engine number is AR01655*126781

The car was imported from South Africa and now has a 2l engine instead of the 1600.

From my research so far, on this forum and Fusi, I think it's an Alfetta engine. But I have not been able to isolate the exact number.

Any help will be very much appreciated.

Thanks
 

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engine tipo 01655 used in following
(taken from german alfa forum listing)

116.36 AR01655 Alfetta GTV 2000 Lusso 76-
116.36A AR01655 Alfetta GTV 2000 Lusso 78-
116.36B AR01655 Alfetta GTV 2000 Lusso 80-82
116.36C AR01655 GTV 2.0 82-86
116.36D AR01655 GTV 2.0 Turbodelta
116.38 AR01655 Nuova Giulietta 2.0

116.55C AR01655 Alfetta 2000 Lusso
116.55F AR01655 Alfetta 2.0 81-85

116.97 AR01655 Nuova Giulietta 2.0
116.A1A AR01655 Nuova Giulietta 2.0 Super u. t.i.

I'd say your serial # is datable to about '82, no later than '83.
 

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I am here trying to find out what engine I have now on my Junior GT 1300 MY 1975. The engine's number is falsified and does not help. Data that I have: it;s a 2.0 L engine with tall oil dipstick in exhaust side, there is no mechanical fuel pump, it seems like Spica front cover but there are not the bolt holes, you can see a bi-polar sensor of unknown purpose, and engine is fitted with batwing oil pan and later type oil filter. There is temperature warning light sensor aft of the head (same like Alfetta's), the car has gearbox with hydraulic actuator clutch and LSD. Attached photos are self explaining. As far as I know original Gt Junior 1300 had a cable clutch... I think the power train is a combination from different irrelevant parts, even the engine maybe.
Any light about engine's type? If it is an Alfetta engine crankshaft should be drilled for gearbox shaft pilot, correct? Other Nord engines with temperature red light sensor on the head? All comments are welcomed!
 

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Hello Aris64 and welcome to the BB

Yes your engine looks like a later Spica engine, the engine number will tell you what you actually have, engines designated AR00520 are two liter motors from 105 Series, those designated AR0016xx or similar are from Alfetta 116 Series - the engine number should be on the rear flange next to the gearbox below the exhaust manifold

I'm pretty sure your car would have had a hydraulic clutch even being a 1300, I had a '75 1600 DeLuxe (2000 GTV body with a 1600 drive train) and it was a hydraulic clutch car with dual circuit brakes. Fusi records the last of the 1300's as being the same spec car but with the 1300 engine & short 5th gear ratio

Post the chassis & engine number and we'll tell you what you have

Ciao
Greig
 

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Hello Aris64 and welcome to the BB

Yes your engine looks like a later Spica engine, the engine number will tell you what you actually have, engines designated AR00520 are two liter motors from 105 Series, those designated AR0016xx or similar are from Alfetta 116 Series - the engine number should be on the rear flange next to the gearbox below the exhaust manifold

I'm pretty sure your car would have had a hydraulic clutch even being a 1300, I had a '75 1600 DeLuxe (2000 GTV body with a 1600 drive train) and it was a hydraulic clutch car with dual circuit brakes. Fusi records the last of the 1300's as being the same spec car but with the 1300 engine & short 5th gear ratio

Post the chassis & engine number and we'll tell you what you have

Ciao
Greig
Thanks for your reply! I got the engine out to fix several leaks and I had the possibility to check thoroughly my engine and my conclusion is that:
1) Engine number is falsified for taxation reasons as it is registered as 1570cc while it is 1962cc
2) On flywheel is stamped 105.12 and crankshaft is not drilled to accept the gear box shaft but it has the normal bronze buch. So, I can safely say that this an AR 0512 engine coming from Berlina 2000 of same period, even though head is coming from Alfetta 2000 (thus the temperature sensor switch aft of cyl No. 4). Exhaust camshaft is from 105 engine but intake is from 116 with the variable timing mechanism. This system, as I understand, is not functioning as automatic any more as there is no electronic part, however allows for static change of timing. I have not yet checked in depth but I noticed that there is a little overlap in the valves (intake valve has already open a little when excaust valve is yet a little open. Still pending to be checked for degrees calculation, etc. The engine has high copression piston and I calculated CR=10.4, compression measured in all cylinders in the range 205-220 PSI.
3) It is remarkable that the car has been fully converted to GT Veloce 2000, including a gearbox with the long 5th (0.79) and LSD differential, the big taillights and all cosmetic items of Veloce. The car from factory is an 105.30 (Junior GT 1300) of the last generation in 1975.
If I had the correcr engine number I would correcting the registration but I don't know how I could do it anymore. The engine's number appeared in photo and if you see very carefully you can see that is area has been welded and grinded / stamped for someone unknown stupid in the past...
 

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