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| HLANG |
Nov 26 2025, 08:56 AM
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#1
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Newbie ![]() Group: Members Posts: 5 Joined: 15-August 25 From: Germany Member No.: 28,926 Region Association: Germany |
I just recently did a complete 2L engine overhaul and installed forged JE-Pistons with Biral Cylinder Liner kit 96 mm bore. The compression is fine, the engine runs well but I experience a consumption of 1 liter oil per 1.000 Km. After I checked the combustion chamber I found too much oil deposits on the spark plugs and the pistons. The ring gap of the piston rings is in tolerance so I wonder why there still passes so much oil from the crankcase into the combustion chamber.
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| emerygt350 |
Nov 26 2025, 08:41 PM
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#2
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 3,506 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
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| JamesJ |
Nov 27 2025, 11:39 AM
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#3
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Member ![]() ![]() Group: Members Posts: 271 Joined: 30-April 20 From: Sunnyvale, CA Member No.: 24,202 Region Association: Northern California
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| Superhawk996 |
Nov 27 2025, 04:52 PM
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#4
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 7,767 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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Perhaps these oil consumption figures were published to avoid warranty work. That is a very typical consumption number for vintage engines from 60s and 70s. It was a well known rule of thumb when I was a kid. Check oil level at every fill up used to be a common recommendation. Unfortunately much of our hobby is being corrupted by people’s modern expectations. These engines are not up to modern standards. The same thing is happening with people’s expectations for braking and steering forces. Expectations are being corrupted by power brakes and power steering in everyone’s daily drivers. I’ve literally watched people try to park a 914 or a VW Bug trying to turn the steering wheel without rolling at all, then complaining about how hard it is to turn the steering wheel. (IMG:style_emoticons/default/headbang.gif) Manual transmissions are now anti-theft devices. (IMG:style_emoticons/default/happy11.gif) Hand crank windows and manual adjusting mirrors are considered a hardship (IMG:style_emoticons/default/av-943.gif) |
HLANG high oil consumption Nov 26 2025, 08:56 AM
Superhawk996 Without knowing details of how you broke the engin... Nov 26 2025, 09:28 AM
wonkipop
Without knowing details of how you broke the engi... Nov 26 2025, 04:14 PM
Superhawk996 1000 km =621.371 miles . . . So, decimal in wrong ... Nov 26 2025, 08:03 PM
wonkipop
1000 km =621.371 mi decimal in wrong position . ... Nov 26 2025, 10:40 PM
Superhawk996
i'd be a little concerned using a litre of o... Nov 27 2025, 12:03 AM
wonkipop
i'd be a little concerned using a litre of ... Nov 27 2025, 02:42 PM
JamesM What does your crankcase venting situation look li... Nov 26 2025, 08:59 PM
TMM914 Yup looks like a leak down test will tell you…..... Nov 27 2025, 06:27 AM
930cabman Oil ring gaps facing down? Nov 27 2025, 09:24 AM
porschetub Lots of great replies here ,I would think it would... Nov 27 2025, 03:17 PM
emerygt350 When are you checking your oil? I find I get very... Nov 27 2025, 06:36 PM
HLANG Thank you guys for your feedback. It seems like th... Nov 28 2025, 07:29 AM![]() ![]() |
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