 1.7L Ljet advice |
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| timothy_nd28 |
 Mar 26 2012, 03:07 PM
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Advanced Member  Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest 
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I just now realized this new engine that I have been piecing back together over the past few weeks isn’t the 1.8L that the PO said it was. The engine code on this engine is EA050723, which if I cross checked correctly is indeed a 1.7L
My issue is, I have been transplanting my old 1975 1.8L Ljet fuel injection parts on this 1.7 block. Can I run Ljet on this 1.7L engine? What obstacles am I up against? Is my 75 1.8L relay board interchangeable with the 1.7L setup? |
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| jcd914 |
Mar 27 2012, 02:42 AM
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Advanced Member Group: Members Posts: 2,096 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
The best running L-jet 914 I ever worked on had a 1.7 transplanted into a 74 1.8 car.
The L-jet is very sensitive to vacuum leaks and with the low compression of the 1.8 engine there is no vacuum to spare. The higher compression of the 1.7 engie suits the L-jet system quite well. Case, cranks, rods, cams are all the same 1.7L to 1.8L. Heads and pistons/cylinders differ. Of course you could have 2.0L internals inside the 1.7 case. 2.0L crank, rods, pistons/cylinders fit right into a 1.7/1.8 case (no machining). 1.8 heads fit the 2.0 cylinders, 1.7 heads need to be machined. Jim |
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Posts in this topic
tim_nd 1.7L Ljet advice Mar 26 2012, 03:07 PM
ape914
I just now realized this new engine that I have b... Mar 26 2012, 04:31 PM Prospectfarms There is a thread that describes a 1.7 conversion,... Mar 26 2012, 05:17 PM kwales Who knows what the DAPO did with the engine. The ... Mar 26 2012, 06:02 PM SirAndy I ran a 1.7L DJet on a 1.8L engine. If you swap ev... Mar 26 2012, 06:09 PM Valy You should be fine.
Cams are the same and ljet is ... Mar 26 2012, 06:36 PM kg6dxn I have a pdf of the L Jat manual. email me and I... Mar 26 2012, 09:01 PM
tim_nd
I have a pdf of the L Jat manual. email me and I... Mar 27 2012, 08:33 AM Prospectfarms Here's a link to the Bosch, 28-page tech manua... Mar 26 2012, 09:09 PM Prospectfarms
The author of the earlier L-jet to 1.7 thread (t... Mar 27 2012, 05:58 AM tim_nd I already installed this engine. I'm having d... Mar 27 2012, 08:31 AM Cap'n Krusty 1.7 and 1.8 crank and rods are the same. Heads ar... Mar 27 2012, 09:18 AM tim_nd Okay, this is all good news. One last thing, The... Mar 27 2012, 03:12 PM Prospectfarms
Okay, this is all good news. One last thing, Th... Mar 27 2012, 09:30 PM |
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