| View previous topic :: View next topic |
| Author |
Message |
Corin
Alfasud
Joined: 28 Aug 2005
Posts: 55
|
 Posted: Sun Jan 07, 2007 1:31 pm Post subject: Which 1.7 engine used in series 2? |
 |
|
Like the subject says!!!
Was it only fitted with the 8valve or was the sixteen valve used as well? The car is a Greg Veloce
Thats G reg veloce, not the ultra rare Greg Veloce Pininfarina (Pinnie's younger brother's ill fated foray into car design)
Corin |
|
| Back to top |
|
 |
stedee
Alfa 33
Joined: 02 May 2006
Posts: 364
Location: brighouse
|
| Posted: Sun Jan 07, 2007 2:44 pm Post subject: |
|
|
as far as i know the series 2 only had the 8v
_________________
brum brum |
|
| Back to top |
|
|
john 33_16v
16 Valve
Joined: 27 May 2005
Posts: 1406
Location: herts, uk
|
| Posted: Sun Jan 07, 2007 5:40 pm Post subject: |
|
|
S2 1.7 and sprint 1.7 only used 8valve, but early ones had mechanical tappets, so cam covers are flat (like the sud) , later ones had hydraulic tappets with the ugly cam covers.
See boxer tech stuff at www.alfisti.co.uk for details and pics 
John
_________________
If it aint broke, fiddle with it until it is!
- - - - - - - - - - - - - -
93 33 16v Mirtle Met
08 Fiat Grande Punto Exotica Red
90 Yamaha FZR600 Genesis- Silky white/red/blue |
|
| Back to top |
|
|
johnboy
16 Valve
Joined: 26 Jun 2003
Posts: 1061
Location: margate U.K
|
| Posted: Sun Jan 07, 2007 6:12 pm Post subject: |
|
|
| stedee wrote: |
| as far as i know the series 2 only had the 8v |
apart from mine  but i fitted it  so no.
_________________
WODA WE NEED? MORE POWER!!
Alfa gt jtdm blackline
1990 S2 16v veloce sleeping!
2002 ts gtv the wifes now
1997 seadoo gsx 800
1999 freestyle superjet |
|
| Back to top |
|
|
Serpent33
Alfa Sprint
Joined: 06 May 2003
Posts: 210
Location: Singapore
|
| Posted: Mon Jan 08, 2007 10:57 am Post subject: |
|
|
I'm pretty sure it's the 8V twin carbs with hydraulics. The mech tappets were for the 1.5's
_________________
Each time I speed I say, "Dear lord, make me fast and accurate..." |
|
| Back to top |
|
|
john 33_16v
16 Valve
Joined: 27 May 2005
Posts: 1406
Location: herts, uk
|
| Posted: Mon Jan 08, 2007 11:34 am Post subject: |
|
|
In UK the early 1.7 definitely had mechanical tappets.
This engine pic http://www.alfisti.co.uk/enginepics/veloce_eng.jpg is a 1987 1700cc which came out of an 87 (E reg) 33 s2 veloce. It now lives in my fathers Minari.
Cheers,
John[/img]
_________________
If it aint broke, fiddle with it until it is!
- - - - - - - - - - - - - -
93 33 16v Mirtle Met
08 Fiat Grande Punto Exotica Red
90 Yamaha FZR600 Genesis- Silky white/red/blue |
|
| Back to top |
|
|
Serpent33
Alfa Sprint
Joined: 06 May 2003
Posts: 210
Location: Singapore
|
| Posted: Mon Jan 08, 2007 11:42 am Post subject: |
|
|
Oh. actually we've tried fitting the mechanical housing to the heads that came with the 1.7 hydraulics one. Apparently they couldn't fit due to the different valve lengths.
_________________
Each time I speed I say, "Dear lord, make me fast and accurate..." |
|
| Back to top |
|
|
Corin
Alfasud
Joined: 28 Aug 2005
Posts: 55
|
| Posted: Mon Jan 08, 2007 5:06 pm Post subject: 16valve heads on 8valve short block? |
|
|
In light of all discussed, is it possible to fit 16valve heads to 8valve shortblock? Or do pistons have valve cutouts? Mine is starting to smoke which may have been caused by the light corrosion to bore after engine rebuild on drive was interrupted 
If not I could just fit the 8valve as a whole lump, or may even just go for best car out of the two. Mine has always had an annoying misfire which develops randomly so another engine and ignition entirely may improve this. Maybe i should start a whole new post. Were the series two mechanical or electrical fuel pumps? The one I'm looking at is carbed so mechancal i guess. Any major differences suspension wise? SDo many questions!
Corin |
|
| Back to top |
|
|
Bellamachinna
Alfa 33
Joined: 12 May 2003
Posts: 352
Location: Lisbon-Portugal
|
| Posted: Mon Jan 08, 2007 5:46 pm Post subject: |
|
|
| Quote: |
| is it possible to fit 16valve heads to 8valve shortblock |
Its possible. But you need to change the pistons as well... The 8v pistons are "flat head" and the 16v are "dome head" with special inserts for the valves.
Fitting a 16v head, using 8v pistons, will result in very bad engine running.
But that will not be the end, of your problems. You will need to decide if you are sticking with carbs or "upgrade" to injection.
If "upgrading" is your goal, it will be a lot easier, because that way you can use all the "hardware" from a 16v (BUT YOU WILL NEED TO INSTALL ALL THE WIRING LOOM FROM A 16v AS WEEL). Maintaining the carbs, will see you strugling to fit the carbs, as the heads design is very diferent, and you will need a custom manifold to fit the carbs in place.
| Quote: |
| Were the series two mechanical or electrical fuel pumps |
Basically, this is the main difference between injected and carbbed 1.7 blocks.
The 1.7 engine with carbs had a special housing for the mechanical fuel pump, but if you have a 1.7 IE block (or a 16v), you dont get that housing, because the pump is electrical, and is placed on the back of the car, near the tank.
But everything is possible, and you can "build" a special blanking plate for the pump.
All the best
P.Camilo
_________________
All'interno della mia macchina, vi sedete, tenete sopra e CHIUDETE IN SU... |
|
| Back to top |
|
|
|
