Differences in VW Bus 2.0 and 914 2.0 engines? |
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Differences in VW Bus 2.0 and 914 2.0 engines? |
amphiduck |
Sep 28 2011, 05:31 PM
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#1
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Member Group: Members Posts: 94 Joined: 29-September 06 From: Tennessee Member No.: 6,947 |
I am in the process of pulling the engine on my '74 2.0 and the closer I get to pulling it, the more worried I am about the engine being a VW bus 2.0 engine. I just bought a D-Jet fuel injection system (thanks Bob!) and a clutch kit for the engine, now wondering if they will work. What are the differences in the engines? If it is a VW 2.0, would I be better off finding a 914 2.0? My car has the single down draft weber. While I'm at it, what fuel pump do you guys recommend for the fuel injection set up? I see on evilBay some of these fuel pumps going for big bucks. This car is just a normal driver, so I wouldn't need anything fancy.
As always, thanks for all the help! |
mgphoto |
Sep 28 2011, 05:41 PM
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#2
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"If there is a mistake it will find me" Group: Members Posts: 1,339 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
I am in the process of pulling the engine on my '74 2.0 and the closer I get to pulling it, the more worried I am about the engine being a VW bus 2.0 engine. I just bought a D-Jet fuel injection system (thanks Bob!) and a clutch kit for the engine, now wondering if they will work. What are the differences in the engines? If it is a VW 2.0, would I be better off finding a 914 2.0? My car has the single down draft weber. While I'm at it, what fuel pump do you guys recommend for the fuel injection set up? I see on evilBay some of these fuel pumps going for big bucks. This car is just a normal driver, so I wouldn't need anything fancy. As always, thanks for all the help! Bus motor has 4 stud heads, only the Porsche 2.0 heads have 3 studs, take a peak at the manifold where it connects to the head, look closely. Stock fuel pump works fine, some new Chinese made are available (1 inlet - 1 outlet) cheap but some say they don't last long. Also take a look at the FI you are going to install, the manifolds must match. Good luck, Mike |
70_914 |
Sep 28 2011, 07:11 PM
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#3
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Member Group: Members Posts: 395 Joined: 4-December 09 From: Roy, WA Member No.: 11,096 Region Association: Pacific Northwest |
Bus oil fill (the case itself) and dipstick are different. Cranks are the same, so your clutch will be fine.
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jmill |
Sep 28 2011, 08:24 PM
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#4
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
Bus pistons have a lower CR and a different cam.
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Dave_Darling |
Sep 28 2011, 08:30 PM
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#5
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914 Idiot Group: Members Posts: 14,990 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
I think the pilot bearing is different in a Bus as well, so you might need to check that.
The heads are different, the pistons are different, the valves are different, the cam is different, the oi fill and dipstick are different, the engine tin is different, the fan is marked differently, the intake system is different, the exhaust is different, the distributor is different... The crank and rods are the same, at least. And the cylinders, I think. --DD |
amphiduck |
Sep 28 2011, 09:44 PM
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#6
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Member Group: Members Posts: 94 Joined: 29-September 06 From: Tennessee Member No.: 6,947 |
Thanks for all the info. I took a few pictures of the engine in the car and it appears that the PO took the intakes out of a VW bus, drilled new holes, and mounted them on the engine. I'm leaning towards the engine being a 914 2.0, but if anyone can tell anymore from the picture, please let me know.
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mgphoto |
Sep 28 2011, 10:00 PM
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#7
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"If there is a mistake it will find me" Group: Members Posts: 1,339 Joined: 1-April 09 From: Los Angeles, CA Member No.: 10,225 Region Association: Southern California |
Thanks for all the info. I took a few pictures of the engine in the car and it appears that the PO took the intakes out of a VW bus, drilled new holes, and mounted them on the engine. I'm leaning towards the engine being a 914 2.0, but if anyone can tell anymore from the picture, please let me know. Check location of serial number, 2.0 914 should be behind the oil filler, there are 2 basic engine codes for the 2.0 914 in the USA, the GA used from 1973 to 1974 and the GC used in the 1975 - 1976 model years. GB code was used in the rest of the world with the carb engines. Type 4 cases bus or Porsche are pretty much the same except for the dipstick location and the oil filler neck, yours looks to be 914, dipstick should be between the oil filler and the drivers side of the engine. |
Prospectfarms |
Sep 28 2011, 10:59 PM
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#8
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Member Group: Members Posts: 495 Joined: 7-March 11 From: Louisville, KY Member No.: 12,801 Region Association: Upper MidWest |
While I'm at it, what fuel pump do you guys recommend for the fuel injection set up? I see on evilBay some of these fuel pumps going for big bucks. This car is just a normal driver, so I wouldn't need anything fancy. As always, thanks for all the help! http://www.914world.com/bbs2/index.php?showtopic=145361 |
Dave_Darling |
Sep 28 2011, 11:00 PM
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#9
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914 Idiot Group: Members Posts: 14,990 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
The single-carb setup is aftermarket--period. It was usually "universal" to fit the three-stud heads and the four-stud ones.
You have 914 heads, three intake studs and the tilted spark plugs. BTW, the GB motors also had D-jet FI, not carbs. --DD |
Niklas |
Sep 29 2011, 12:33 AM
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#10
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Porsche 914 Sweden Group: Members Posts: 366 Joined: 20-June 09 From: Sweden - Skivarp Member No.: 10,488 Region Association: Scandinavia |
Tha cam are all the same on 914 and bus.
Niklas |
Bleyseng |
Sep 29 2011, 05:01 AM
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#11
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
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Al Meredith |
Sep 29 2011, 11:42 AM
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#12
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Senior Member Group: Members Posts: 960 Joined: 4-November 04 From: Atlanta, ga Member No.: 3,061 |
Bus rods are heavier as well
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fitsbain |
Sep 29 2011, 12:47 PM
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#13
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Ask me if my car has rust!!! Group: Members Posts: 619 Joined: 25-February 06 From: Pittsburgh PA Member No.: 5,634 |
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Cap'n Krusty |
Sep 29 2011, 01:51 PM
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#14
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
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