The Portal Hub: All things Pinzgauer, Haflinger, Volvo 303 and more.

The Portal Hub: All things Pinzgauer, Haflinger, Volvo 303 and more.

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 Engine Oil Leak on bottom of cylinder head nearest driver 
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Joined: Sun Oct 23, 2016 10:02 am
Posts: 149
Location: Mesquite, NV
Post Engine Oil Leak on bottom of cylinder head nearest driver
Our new to us 1971 710M has an engine oil leak on the bottom of the rear cylinder. It's clean up top on the valve cover. Any idea what's going on here?

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File comment: Above on the valve cover is clean
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File comment: Clean up top.
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File comment: Oil on the drive train tube below
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File comment: Oil around the exhaust, on the head fins
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1971 Pinzgauer M710, all stock including 245-16 Maloya tires, taken off and stored for show
BFG MT KM2 265/75R16's on Black SAV replacement rims on now


Tue Nov 08, 2016 1:19 pm
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Joined: Fri May 01, 2009 12:30 pm
Posts: 1552
Location: Detroit Motor City
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
Did you take the valve cover off? You may need a new gasket. Pretty simple fix, just make sure you don't put it on upside down.

Just for piece of mind as I think you're a new owner - this is minor.

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1973 712m
(2) 1968 Haflingers One For Sale
1979 Mini Cooper Ranger For Sale
1986 Corvette For Sale
2001 F250 Diesel and trailer
Current Company Cars
2016 Flex
2017 F-150


Tue Nov 08, 2016 1:39 pm
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Joined: Sun Oct 23, 2016 10:02 am
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Location: Mesquite, NV
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
audiocontr wrote:
Did you take the valve cover off? You may need a new gasket. Pretty simple fix, just make sure you don't put it on upside down.

Just for piece of mind as I think you're a new owner - this is minor.


Thank you very much! I feel better knowing that as you can imagine.

We haven't touched anything. You're saying a new valve cover gasket? I can see fresh oil at the bottom of the gasket.

_________________
1971 Pinzgauer M710, all stock including 245-16 Maloya tires, taken off and stored for show
BFG MT KM2 265/75R16's on Black SAV replacement rims on now


Tue Nov 08, 2016 1:53 pm
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Joined: Sun Oct 23, 2016 10:02 am
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Location: Mesquite, NV
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
I'll order a new gasket, I imagine SAV has them.

From past experience with other old vehicles, trying to stop a leak by tightening the cover usually just makes the leak worse. Since I haven't touched it, do you think I should see if it will snug up a little?

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1971 Pinzgauer M710, all stock including 245-16 Maloya tires, taken off and stored for show
BFG MT KM2 265/75R16's on Black SAV replacement rims on now


Tue Nov 08, 2016 2:02 pm
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Joined: Mon Mar 15, 2010 12:46 pm
Posts: 699
Location: Crystal Beach ON CAN
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
+1 on the gasket. If you rub your finger under the valve cover you should be able to come up with some oil.

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1972 710m


Tue Nov 08, 2016 2:05 pm
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Location: Mesquite, NV
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
stiffler4444 wrote:
+1 on the gasket. If you rub your finger under the valve cover you should be able to come up with some oil.


Yes, I can see it.

_________________
1971 Pinzgauer M710, all stock including 245-16 Maloya tires, taken off and stored for show
BFG MT KM2 265/75R16's on Black SAV replacement rims on now


Tue Nov 08, 2016 2:08 pm
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Joined: Sun Oct 23, 2016 10:02 am
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Location: Mesquite, NV
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
Do I need to drain some oil before replacing the gasket?

From notes from a previous Owner it might have Mobil 1 in it which I understand is a no-no. What oil do you recommend. Nevada here 115F-20F ambient temperature range.

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1971 Pinzgauer M710, all stock including 245-16 Maloya tires, taken off and stored for show
BFG MT KM2 265/75R16's on Black SAV replacement rims on now


Tue Nov 08, 2016 2:10 pm
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Joined: Mon Mar 15, 2010 12:46 pm
Posts: 699
Location: Crystal Beach ON CAN
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
Never hurts to give it a tightening. Odds are you should replace it (all 4 actually). No need to drain oil, but know that some will leak out once the cover is removed. I use 10w30 but I'm in Canada.

To Dave

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1972 710m


Tue Nov 08, 2016 2:50 pm
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Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
Tighten the nut a little. Wont hurt

_________________
1973 712m
(2) 1968 Haflingers One For Sale
1979 Mini Cooper Ranger For Sale
1986 Corvette For Sale
2001 F250 Diesel and trailer
Current Company Cars
2016 Flex
2017 F-150


Tue Nov 08, 2016 4:18 pm
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Joined: Mon Dec 28, 2015 11:47 pm
Posts: 7
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
Don`t tighten the nut ... the cilinderheadcover will break ... it is specified to 15 Nm which is 10.8 lbf ft (which is what you use?)

The seals are sucked in quite often, when the cork gets older ... it can be prevented by glueing the seal to the cap by a temperature resistant liquid sealant (we here in Europe use Curil T, I am sure there is something similar in the US!)http://www.elring.de/fileadmin/Dateiablage_DE/2Service/Datenblaetter/Technische_Dichtmassen/CurilT/TD_Curil_T_EN_01.pdf

Simon


Wed Nov 09, 2016 2:20 pm
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Location: Mesquite, NV
Post Re: Engine Oil Leak on bottom of cyli.nder head nearest driv
I did tighten the nut just a hair, it was tight. New gaskets ordered from SAV. Thanks for the tip on the sealant. In my old days we used a Permatex High Tack, maybe good to use?

_________________
1971 Pinzgauer M710, all stock including 245-16 Maloya tires, taken off and stored for show
BFG MT KM2 265/75R16's on Black SAV replacement rims on now


Wed Nov 09, 2016 3:40 pm
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Joined: Wed Apr 14, 2004 9:58 pm
Posts: 1263
Location: Idyllwild, CA
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
Quote:
it might have Mobil 1 in it which I understand is a no-no.
(speaking of engine oil)

I do not recall ever having anyone in this forum say that synthetic oil is a problem in the Pinz engine; I can't see that it would be a problem. It is costly, and it may have issues with leaks and seals, but those are other issues that don't have any relationship to damage in the engine. I have heard that synthetic gear oils in the hubs can ruin brake shoes if the seals leak (apparently the synthetic can't be as cleaned from the shoes as non-synthetic oils) but I have not been able to find any reason why this may be so. The one truth that I have been able to find is that GL5 rated oils will cause a problem with the syncros in the transmission, so a GL4 rated gear oil is preferred only in the transmission.

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Jim M.
712W and 710M


Wed Nov 09, 2016 3:41 pm
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Joined: Sun Sep 25, 2011 11:19 am
Posts: 418
Location: Woodside, CA
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
Yup, it's been discussed, Jim L in fact has pointed out that our Pinz engine is
designed to have a "small" degree of oil flow past the valve guides. This will
result in Synthetic oil burning in the chamber leaving a really crappy residue
build up. That stuck in my head as a don't do ever.

There are a ton of hits searching for synthetic oil so would take time to find.
Maybe others can chime in if they also remember or can point to that thread.

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Puller: 710K 2.7L EFI
Follower: Sankey MK 3, 3/4 Tonne
Driver: Ron // KO0Q


Wed Nov 09, 2016 4:10 pm
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Joined: Sun Sep 25, 2011 11:19 am
Posts: 418
Location: Woodside, CA
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
Here it is, read this thread: http://real4x4forums.com/PinzgauerBBS/viewtopic.php?f=12&t=7836&hilit=synthetic+oil

Fouls the plugs, and build up.

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Puller: 710K 2.7L EFI
Follower: Sankey MK 3, 3/4 Tonne
Driver: Ron // KO0Q


Wed Nov 09, 2016 4:17 pm
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Joined: Sun Oct 23, 2016 10:02 am
Posts: 149
Location: Mesquite, NV
Post Re: Engine Oil Leak on bottom of cylinder head nearest drive
I sure appreciate all the responses, great forum here! I'm not a novice having done all my maintenance and many repairs and upgrades on my Early Broncos for over 15 years. But, the Pinz is foreign and new to us so we need to start our database on it from nothing! Luckily we did get the 3 manuals and wiring diagram from the previous Owner and SAV's data base with diagrams is awesome. And we did find a maintenance list online.

_________________
1971 Pinzgauer M710, all stock including 245-16 Maloya tires, taken off and stored for show
BFG MT KM2 265/75R16's on Black SAV replacement rims on now


Wed Nov 09, 2016 4:28 pm
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