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Identifying a 2.7 engine?
Posted: Fri Mar 23, 2007 10:51 am
by nath
Hi everyone, i have an alpina c2 2.7 (genuine)
The damn engine doesnt have an engine number!! where it should be is just blank, not ground off or dirty, its just clean metal.
The safety tag attached to the sump is still there, (these are put there to prevent grinding the number off)
The engine has alpina ECU, headers, original black rocker cover etc. If the engine had been taken out, the headers and top would have been as well....
Nothing goes with the blank number!
Why doesnt it have an engine number, and howww can i tell if it is indeed the 2.7? What can i check???
Re: Identifying a 2.7 engine?
Posted: Fri Mar 23, 2007 9:40 pm
by Brianmoooore
IIRC, at some time the engine number was near where the distributor blank plate is on the LH side of the block.
Re: Identifying a 2.7 engine?
Posted: Sat Mar 24, 2007 12:26 am
by nath
It seriously has no number- pisses me off!
Re: Identifying a 2.7 engine?
Posted: Sat Mar 24, 2007 1:45 pm
by ed325i
not ground off or dirty, its just clean metal.
Like the block I have in the shed, it looks like its been ground off and then cleaned up with the sander so its smooth.
Re: Identifying a 2.7 engine?
Posted: Sat Mar 24, 2007 5:00 pm
by datonyb
id also be inclined now to check the cuttle panel for any signs of welding/filler or different paint mate
Re: Identifying a 2.7 engine?
Posted: Sat Mar 24, 2007 5:04 pm
by maxfield
You could always take a spark plug out and stick something like a straw down and mark the length which would tell you the stroke therefor engine size.
Re: Identifying a 2.7 engine?
Posted: Sat Mar 24, 2007 5:10 pm
by oakey
dyno power run? or is the engine not in a car....
Re: Identifying a 2.7 engine?
Posted: Sat Mar 24, 2007 5:59 pm
by kidsinister
You need to find the four digit number stamped into the front of the head, inlet side; they'll be slightly obscured by the manifold but you can just about see them.
If they're there, that will at least tell you the head is genuine Alpina.
Re: Identifying a 2.7 engine?
Posted: Sun Mar 25, 2007 2:30 am
by nath
What should the number read? Do you mean stamped, or cast? (inny or outy)
Re: Identifying a 2.7 engine?
Posted: Sun Mar 25, 2007 10:18 am
by kidsinister
Stamped; just a random four-digit number.
Re: Identifying a 2.7 engine?
Posted: Sun Mar 25, 2007 8:27 pm
by nath
I think you are talking about the number which i cannot find dude.... just to the rear of the left side engine mount? (just forward of it on slightly later engines)
Re: Identifying a 2.7 engine?
Posted: Mon Mar 26, 2007 7:41 am
by kidsinister
The number I'm talking about is stamped into the cylinder head, behind the inlet manifold - look for it around the circled area in this pic:
If there is no stamped, four-digit number there it's not an Alpina head.
Re: Identifying a 2.7 engine?
Posted: Mon Mar 26, 2007 10:32 am
by nath
Well cant find any number- so must be a 325i engine- car has ALL th eother parts incl. ECU and headers, suspension etc etc, and the car is apparently an original sytner C2 2.7.. wonder what happened to the head and block??
Re: Identifying a 2.7 engine?
Posted: Mon Mar 26, 2007 10:48 am
by kidsinister
Also, if the part number cast into the centre of the head (same side) ends in 885 it's a 325i.
Re: Identifying a 2.7 engine?
Posted: Mon Mar 26, 2007 12:37 pm
by nath
yeah i can JUST see 885. gay.
Oh well, best idea to part it out when i sell then i guess?