Author |
Message |
Aass2505 Samba Member
Joined: April 12, 2013 Posts: 1
|
Posted: Thu May 19, 2016 2:04 pm Post subject: Porsche 914 and Bus engine differences |
|
|
Hi Is there a difference between the engine Porsche 914 2.0l and 2.0l engine Volkswagen bus |
|
Back to top |
|
|
raygreenwood Samba Member
Joined: November 24, 2008 Posts: 21474 Location: Oklahoma City
|
Posted: Thu May 19, 2016 3:44 pm Post subject: Re: porsche 914 |
|
|
Aass2505 wrote: |
Hi Is there a difference between the engine Porsche 914 2.0l and 2.0l engine Volkswagen bus |
Yes.
With regard to just the mechanical parts first:
The engine cases except for some very minor casting differences that make no difference at all......the engine cases are identical.
The piston rods, crank, bearings and oil pump are identical.
The cylinders are identical.
The pistons themselves.....are different.
The heads are very different. Different plug angle, the 914 valves are 42mm x 36mm the bus are 39mm x 33mm
The cam is totally different.
The fan is the same except for timing marks. The cooling manifold is largely the same except for the timing mark hole. The alternator is the same.
Because the 914 is mid engine and has different plug angles......most of the sheet metal and the heat exchangers are different.
Now.....if you have a 914, have a 1.7 or 1.8L case...and/or have all of the sheet metal etc from those engines. ....and have access to the crank and rods from a bus 2.0.....you can buy new 2.0 repro heads on new castings from HAM inc......not cheap but actually better than stock 914 2.0 heads........and you can build a 2.0 914 engine.
Ray |
|
Back to top |
|
|
porkchop-rob Samba Member
Joined: April 28, 2015 Posts: 440
|
Posted: Fri May 20, 2016 2:29 pm Post subject: Re: Porsche 914 and Bus engine differences |
|
|
Rarely do you see such a complete and helpful response to an open ended question like this!
Cheers to Ray for the super detailed response. _________________ 1965 Beetle
1968 Beetle Baja (Son's First Car)
1976 Bus with Subaru (Wife's Riviera Camper) |
|
Back to top |
|
|
raygreenwood Samba Member
Joined: November 24, 2008 Posts: 21474 Location: Oklahoma City
|
Posted: Fri May 20, 2016 6:59 pm Post subject: Re: Porsche 914 and Bus engine differences |
|
|
porkchop-rob wrote: |
Rarely do you see such a complete and helpful response to an open ended question like this!
Cheers to Ray for the super detailed response. |
Why thank you!......I will expect my bill to be paid promptly. ....
Ray |
|
Back to top |
|
|
Wolfgangdieter Samba Member
Joined: June 25, 2008 Posts: 1958 Location: FL Panhandle
|
Posted: Sat May 21, 2016 5:56 pm Post subject: Re: Porsche 914 and Bus engine differences |
|
|
Oil dipstick and filler are different. Early T2 had dual Solex carbs stock while ALL US 914 were FI. The carb and FI cams and distributors were different too. The 914 had FI trigger in distributor. Since T2 were lower compression (dished pistons) hence they produced less HP. And of course the heat exchangers and engine hangers were different since engines pointed in different directions. You'll see the boss for a mechanical fuel pump too on 914 engines which was never used since FI took a high pressure fuel pump. _________________ CMC '57 Porsche Speedster Replica and Dolphin boat tailed full pan VW MOD-T Street Buggy |
|
Back to top |
|
|
raygreenwood Samba Member
Joined: November 24, 2008 Posts: 21474 Location: Oklahoma City
|
Posted: Sat May 21, 2016 10:04 pm Post subject: Re: Porsche 914 and Bus engine differences |
|
|
Wolfgangdieter wrote: |
Oil dipstick and filler are different. Early T2 had dual Solex carbs stock while ALL US 914 were FI. The carb and FI cams and distributors were different too. The 914 had FI trigger in distributor. Since T2 were lower compression (dished pistons) hence they produced less HP. And of course the heat exchangers and engine hangers were different since engines pointed in different directions. You'll see the boss for a mechanical fuel pump too on 914 engines which was never used since FI took a high pressure fuel pump. |
Yes.....thank you for the little details....I was being lazy.....
Ray |
|
Back to top |
|
|
old DKP driver Samba Member
Joined: March 30, 2005 Posts: 4145 Location: Los Gatos,Ca.
|
Posted: Thu Jun 02, 2016 10:17 pm Post subject: Re: Porsche 914 and Bus engine differences |
|
|
Ray is a superb type-4 poster _________________ V.W.owner since 1967 |
|
Back to top |
|
|
raygreenwood Samba Member
Joined: November 24, 2008 Posts: 21474 Location: Oklahoma City
|
Posted: Thu Jun 02, 2016 10:32 pm Post subject: Re: Porsche 914 and Bus engine differences |
|
|
old DKP driver wrote: |
Ray is a superb type-4 poster |
Its a fetish.....now if I could only get my engines to love me.....
Ray |
|
Back to top |
|
|
old DKP driver Samba Member
Joined: March 30, 2005 Posts: 4145 Location: Los Gatos,Ca.
|
Posted: Thu Jun 02, 2016 10:42 pm Post subject: Re: Porsche 914 and Bus engine differences |
|
|
Same here RAY,
Let bygones be bygones
You are truly an asset. _________________ V.W.owner since 1967 |
|
Back to top |
|
|
|