 Tell me about swapping to hydraulic lifters |
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| JeffBowlsby |
 Jun 3 2016, 04:28 PM
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914 Wiring Harnesses & Beekeeper  Group: Members Posts: 8,907 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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I hear they are done to eliminate valve adjustments on a T4 motor.
Other pros/cons? Is there machining required or are they drop in and thus reversible? |
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| larryM |
 Jun 3 2016, 10:43 PM
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emoze Group: Members Posts: 891 Joined: 1-January 03 From: mid- California Member No.: 65 Region Association: Northern California
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https://www.google.com/search?q=914+hydraul...-8&oe=utf-8
your problem will be getting it to work with D-jet if that is your plan i tried it in a 2.0 many yrs ago (circa 1990-93) with the intent to avoid continual valve adjusting - WebCam 94 was the number back then - new numbers & several grinds now - find all the needed parts on this site www.webcamshafts.com/mobile/automobile/porsche/porsche_914_8v.html - the hydraulic engine vacuum profile is entirely different & it requires a LOT of tuning & fiddling to get it running anywhere near right if not running D-jet you will like the result - the VW buses ran 'em with L-jet & you can likely find a lot of help on the Samba in that regard fwiw i finally gave up trying to tune it & went back to a Web Cam 73 with D-jet and Ed Mazula 4mm overbore TB - it was a mid-range screamer! there are old threads on this 'way back - pre-914World, but Samba is your best source . yes it is reversible! - i did it - the adventure cost me a LOT OF TIME - at 35 hrs flat rate to teardown & reassemble, one must think hard about that prospect - that's X2 since it meant doing it twice |
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Posts in this topic
Jeff Bowlsby Tell me about swapping to hydraulic lifters Jun 3 2016, 04:28 PM
mepstein You don't do it on a 914 motor since you want ... Jun 3 2016, 04:46 PM MichaelB I am not the expert opinion you are looking for bu... Jun 3 2016, 05:04 PM Bleyseng
I hear they are done to eliminate valve adjustmen... Jun 3 2016, 05:12 PM Dave_Darling Ramp rates on the cam have to be set up for the hy... Jun 3 2016, 11:04 PM rhodyguy Very annoying when the lifters have to pump up aft... Jun 4 2016, 08:17 AM
r_towle It works, not optimum but it can be a dropped in t... Jun 4 2016, 09:19 PM |
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