 Too much pressure?, Still leaks some |
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| Wew |
 Dec 31 2023, 02:14 AM
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Member  Group: Members Posts: 236 Joined: 17-January 15 From: Novato, ca Member No.: 18,335 Region Association: None  |
Hi all
Engine is a 1973 2.0 with a 2056 build. I purchased a cam that was more aggressive for spirited driving no track and just large enough to maintain the car running fuel injection DJet. New heads with no vents. purchased the oil tower and air box for a 1975/76 as the bigger breather opening was recommended. I am still experiencing some oil leaks one that sits at the base of the head near the number 4 spark plug. Plug is not leaking. Also some oil on the thermostat spring mechanism. Valve covers have had inner lip welded and 914 rubber cork gaskets. I bought this canister to help with the pressure and hopefully remedy the oil leaks.  I have been unable to find an example of how to route the hoses for this when installed. Any advice or pointing me in the right direction would be appreciated. |
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| technicalninja |
Dec 31 2023, 12:40 PM
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#2
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Advanced Member Group: Members Posts: 2,531 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region 
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Not enough info for me yet on this one to help.
Have you checked crankcase pressure? Have you checked compression and LEAK DOWN! How many miles on new engine? Sounds like the root problem is oil leaks... Quick test: Seal all engine vents, run engine at idle for a couple of minutes. Remove oil cap. Was it pressurized? Can you feel pressure or pulses when you cover it with your hand? Have someone raise the RPM to 3000. Retest in the same manner. You can also use a low-pressure vac/fuel pressure gauge in the vent with the engine sealed and running. You're checking "blow by" here. Most of the time, when you're having a problem, you will feel air blowing out of the fill tube or STRONG pulses when covering it with your hand. The longer you seal it the higher the pressure climbs. Oil leaks can be caused by too much crankcase pressure. They're more likely to be caused by other things... Sounds like you have leaks on both sides. I like the UV dye kits from TracerLine. Their LED based lights are awesome! The pully bolt for the thermostat wire extends completely though the case and can be a source of leaks. Needs to be sealed at install IMO. The rt side might be oil cooler/oil pressure sending unit. What compression? What cam? What piston/barrels? Exhaust? |
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Posts in this topic
Wew Too much pressure? Dec 31 2023, 02:14 AM
mate914
Hi all
Engine is a 1973 2.0 with a 2056 build. I ... Dec 31 2023, 07:32 AM
Wew Just splice the line of the big breather hose betw... Dec 31 2023, 11:48 AM r_towle no vents on the heads may be a bit optimistic.
Lot... Dec 31 2023, 12:28 PM technicalninja
no vents on the heads may be a bit optimistic.
Lo... Dec 31 2023, 12:57 PM Jack Standz Might find this useful (from Len Hoffman and Jake ... Dec 31 2023, 01:19 PM technicalninja Bingo! That's a great article!
Only o... Dec 31 2023, 01:59 PM Jack Standz Some increase the size I f the drains on the winda... Dec 31 2023, 02:08 PM technicalninja One thing I noticed in a Raby video where he demon... Dec 31 2023, 03:42 PM Jack Standz Wow, good catch. I've seen that video before ... Jan 1 2024, 12:48 AM |
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