 Hydraulic lifters, Pros cons advice |
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| hseymore1 |
 Jan 23 2017, 10:18 AM
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#1
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Mid engine guy  Group: Members Posts: 20 Joined: 14-November 10 From: washington state Member No.: 12,383 Region Association: Pacific Northwest 
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I am considering building a second 1.7 engine as I have three good cases and lots of spare parts. I have a set of hydraulic lifters good crankshafts and cams. Can anyone give me so do's don't etc. that I should be aware of as I have only built stock engines?
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| Ferg |
Jan 23 2017, 11:10 AM
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#2
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914 Guru Group: Members Posts: 5,948 Joined: 8-January 03 From: Boulder CO Member No.: 116 Region Association: None
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I'm sure I won't be the only one, but Don't use em. I really really dislike them.
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| ConeDodger |
Jan 23 2017, 11:14 AM
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#3
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Apex killer! Group: Members Posts: 23,585 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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Do: not use them...
Don't: use them... (IMG:style_emoticons/default/biggrin.gif) Loss of performance d/t loss of precision. Vs: no valve adjustments. |
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| Dave_Darling |
Jan 23 2017, 11:23 AM
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#4
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914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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And you do still have to adjust the valves, particularly when the engine sits for an extended period of time.
--DD |
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| Mark Henry |
Jan 23 2017, 01:12 PM
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#5
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Pro is they add weight to your scrap metal pile.
Con is they're junk. Personally I'd rather use dog doo for lifters. Learn how to adjust your valves, or pay a wrench to do it. Part of the package when you own a 914. |
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| rjames |
Jan 23 2017, 02:16 PM
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#6
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I'm made of metal Group: Members Posts: 3,932 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest
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I have them and I check that they are in adjustment once or twice a year, which they always are.
That said, I wish my engine didn't have them. If I don't drive the car for an extended period of time it can take a while for the lifters to fill with oil, and until they do it makes a horrible racket. Adjusting the valves isn't that difficult after you've done it a few times so don't let that be the deciding factor. |
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| hseymore1 |
Jan 23 2017, 02:48 PM
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#7
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Mid engine guy Group: Members Posts: 20 Joined: 14-November 10 From: washington state Member No.: 12,383 Region Association: Pacific Northwest
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QUOTE(hseymore1 @ Jan 23 2017, 08:18 AM)  I am considering building a second 1.7 engine as I have three good cases and lots of spare parts. I have a set of hydraulic lifters good crankshafts and cams. Can anyone give me so do's don't etc. that I should be aware of as I have only built stock engines? Well it seems the verdict is no and I thank you all very much. |
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| JamesM |
Jan 23 2017, 04:51 PM
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#8
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Senior Member Group: Members Posts: 1,900 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
QUOTE(hseymore1 @ Jan 23 2017, 09:18 AM) I am considering building a second 1.7 engine as I have three good cases and lots of spare parts. I have a set of hydraulic lifters good crankshafts and cams. Can anyone give me so do's don't etc. that I should be aware of as I have only built stock engines? I ran them for about 10 years on a 2.0 I had built back when I used my 914 for a daily driver. Never adjusted the valves once. They worked just fine but i wouldn't do it again. Adjusting the valves is not a big deal. quick edit: let me clarify "fine": On a daily driver below 4500 rpm they ran great as long as the car had not been sitting for a while and as long as the oil was clean. those are pretty much the operating parameters you need to say in to consider how they work "fine" |
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| larryM |
 Jan 23 2017, 10:49 PM
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#9
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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 Dave Darling wrote w decent article about this many many yrs ago - it's on pelican i did it once - 20 yrs ago - it does not work with D-jet & oem cam - likely would work OK with a proper hydraulic cam - meaning a complete engine teardown & rebuild (35 hrs flat rate) - webcam has a couple performance Hydro cams to consider - mostly aimed at the VW market but good enuf |
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| cgnj |
Jan 24 2017, 03:58 AM
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#10
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Senior Member Group: Members Posts: 623 Joined: 6-March 03 From: Medford, NJ Member No.: 403 Region Association: None
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If you use crmo pushrods with mechanical lifters, you can use zero lash braille method.
Beats feeler gauge, screwdriver and wrench, especially if the motor is stroked. |
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