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> Oh no! Lost oil pressure ...
r_towle
post Feb 15 2018, 11:13 PM
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Park it, finish up the house projects.
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SirAndy
post Feb 15 2018, 11:15 PM
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Well, i just did some reading and apparently it's pretty common for the lifters to gunk up and collapse.
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Krieger
post Feb 15 2018, 11:31 PM
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What damage have those motors seen. So what is the solution? Teardown? A couple of oil changes?
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76-914
post Feb 16 2018, 08:50 AM
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QUOTE(SirAndy @ Feb 15 2018, 09:15 PM) *

Well, i just did some reading and apparently it's pretty common for the lifters to gunk up and collapse.
(IMG:style_emoticons/default/huh.gif)

Well, that’s good news; I think. Weird. Anyway, glad it fixed itself. You don’t need a rebuild on top of a remodel. (IMG:style_emoticons/default/beerchug.gif)
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Dave_Darling
post Feb 16 2018, 10:04 AM
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You're just guessing until you start examining stuff. The first step is to open up the oil filter and see if there is any metal trapped in it.

--DD
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SirAndy
post Feb 16 2018, 11:05 AM
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QUOTE(Dave_Darling @ Feb 16 2018, 08:04 AM) *
You're just guessing

But that was sort of the point of this thread, i want people to guess so i can cover more possibilities.

There are many people on here that know a lot more about /6 engines than i do ...
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mepstein
post Feb 16 2018, 11:18 AM
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QUOTE(SirAndy @ Feb 16 2018, 12:05 PM) *

QUOTE(Dave_Darling @ Feb 16 2018, 08:04 AM) *
You're just guessing

But that was sort of the point of this thread, i want people to guess so i can cover more possibilities.

There are many people on here that know a lot more about /6 engines than i do ...
(IMG:style_emoticons/default/shades.gif)

See post #2. It can be a lot of things but the oil filter will tell you a lot with very little effort. If you see gold, you will know to pull the engine for a rebuild. No other search needed. If the oil looks clean, then step 2.
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Chris914n6
post Feb 16 2018, 01:22 PM
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QUOTE(SirAndy @ Feb 15 2018, 07:32 PM) *

QUOTE(Chris914n6 @ Feb 15 2018, 07:31 PM) *
3.6L right?
Hydraulic lifters? Hydraulic cam guides? What do you think the noise was?

Doh, yes, could it be that the lifters ran out of oil???
(IMG:style_emoticons/default/idea.gif)

Lifters are at the end of the supply chain, so it's likely what you heard. Sounds like tapping an unsharpened pencil on a desk.
Doesn't explain the pressure loss though. Since it recovered I'd check for sludge buildup somewhere.
Cutting the filter open is still a good idea. It will answer the bigger questions.
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914dave
post Feb 16 2018, 01:43 PM
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QUOTE(Chris914n6 @ Feb 15 2018, 10:31 PM) *

3.6L right?
Hydraulic lifters? Hydraulic cam guides? What do you think the noise was?

I agree on the lifters. I would investigate the filter. It might have been the feed hose restricted. Scary stuff!!!
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bulitt
post Feb 17 2018, 06:43 AM
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No smoke out of the tailpipe means your rings are still good..
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JOEPROPER
post Feb 17 2018, 07:19 AM
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I don't know if these engines are prone to sludge, but most people change engine oil on collector / hobby cars way before it's due. I don't put that many miles on my car each year, so it doesn't get away from me. Hopefully it's an easy fix. I'd cut the filter open and take a look first because it's the easiest thing to do.
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PanelBilly
post Feb 17 2018, 10:15 AM
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Maybe send the oil out for analysis. That’s not too expensive
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ConeDodger
post Feb 17 2018, 10:39 AM
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QUOTE(SirAndy @ Feb 16 2018, 02:15 AM) *

Well, i just did some reading and apparently it's pretty common for the lifters to gunk up and collapse.
(IMG:style_emoticons/default/huh.gif)


Paul Sayeh had a couple collapsed lifters when he first got his 3.6 from LA Dismantlers. And we all know how that turned out... (IMG:style_emoticons/default/evilgrin.gif)
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Elliot Cannon
post Feb 17 2018, 10:43 AM
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I got one of these to cut open the oil filters on my Cessna 150 but I also use it for my car. I cut it open, slide a strong, slim magnet between the folds of the filter. I then cut out the filter paper, unfold it, take it out in the sun and check for shiny bits. If you want to borrow mine, I'll ship it up to you. http://www.aircraftspruce.com/catalog/topa...p?clickkey=4975
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Elliot Cannon
post Feb 17 2018, 10:50 AM
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You can also send a sample to these guys. I know, this is airplane stuff but it's still an air cooled boxer style horizontally opposed engine. I have airplane oil checked every oil change every 25 hours. I know that sounds like over-kill but if my engine has trouble, I can't pull over and stop on the side of the road. (IMG:style_emoticons/default/av-943.gif) http://www.aircraftspruce.com/catalog/eppa...lickkey=3058045
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mb911
post Feb 17 2018, 12:06 PM
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Andy my concern is that the lifters don't have much to do with oil pressure as the pressure is measured prior to that point..
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IronHillRestorations
post Feb 17 2018, 07:18 PM
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Do you have braided stainless oil lines? If so I'd recommend checking all the oil lines. I've seen those things internally collapse closed, and the outside of the hose looked perfect.
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wndsrfr
post Feb 17 2018, 09:21 PM
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OK, 'nother thought....is there a pinhole leak in your cooler such that when the thermostat kicked the oil pressure dropped out for a bit?
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Tdskip
post Feb 17 2018, 09:38 PM
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QUOTE

See post #2. It can be a lot of things but the oil filter will tell you a lot with very little effort. If you see gold, you will know to pull the engine for a rebuild. No other search needed. If the oil looks clean, then step 2.


I think this is really good advice. Having had a similar experience there's a risk of chasing anything and everything without getting to ground truth.

Getting a lab to let you know what's in the oil is also a really good idea I think.

My fingers and toes are crossed for you that that the filter is clean.
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SirAndy
post Feb 17 2018, 10:20 PM
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QUOTE(mb911 @ Feb 17 2018, 10:06 AM) *

Andy my concern is that the lifters don't have much to do with oil pressure as the pressure is measured prior to that point..

I know the two aren't related, there is/was obviously also a blockage somewhere ...
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