Engine oil leak!!

Engines and Engine Systems
User avatar
vanhack
Senior Member
Senior Member
Posts: 140
Joined: 01 Oct 2014 06:58
Full Name: Siddharth Patel
Nickname: Sid
Home Town: Dubai, UAE
Current 4x4: Y61 LWB Patrol TB48E, Auto
Home Language: English
Has thanked: 36 times
Been thanked: 23 times

Engine oil leak!!

Post by vanhack »

Well I have been monitoring an oil leak that is not dripping on the floor yet, but is spreading at the rear of the engine where the engine and transmission meet. I have been watching this leak for 15,000kms now, and is increasing area where oil is covering, still not dripping on the floor. My Nissan is trying to be a LR. :thumbdown:

It is definitely not the valve/rocker cover, and seems to be the headgasket! My Patrol is 2nd hand patrol, that I bought at 44,000kms and is on 76,000kms.

See pictures below. Note that my car is a left hand drive. The oil seems to be leaking from below the head, and not from anywhere near the oil filter or oil cooler. Definetly oil and not coolant, but can't confirm if it is engine oil or transmission fluid.

Both the transmission fluid and engine oil are above the max limit...infact the transmission seems over filled.

Image
Y61 LWB Patrol TB48E, Auto
Distributor for www.quickpitchgcc.com in Middle East & India
User avatar
stobi_de
Senior Member
Senior Member
Posts: 104
Joined: 06 Oct 2014 14:16
Full Name: Frank Stober
Nickname: stobi_de
Home Town: 51647 Gummersbach - Germany
Current 4x4: Nissan Patrol GR2 /Y61 (TBE45) from 1999, short Nissan Patrol GR1 (2.8 TD) from 1992, Volvo XC60 AWD
Home Language: German
Has thanked: 9 times
Been thanked: 26 times
Contact:

Re: Engine oil leak!!

Post by stobi_de »

Hm... "where the engine and transmission meet"
Had the same problem in my Patrol Y60.
It was the crankshaft oil-seal between engine and gearbox.

The oil seal ist a cheap part of 100-150 rand, but the gearbox has to come out.
The replacement itself is simple.

Frank

by the way: where is this fantastic collection of engines in your album?
User avatar
vanhack
Senior Member
Senior Member
Posts: 140
Joined: 01 Oct 2014 06:58
Full Name: Siddharth Patel
Nickname: Sid
Home Town: Dubai, UAE
Current 4x4: Y61 LWB Patrol TB48E, Auto
Home Language: English
Has thanked: 36 times
Been thanked: 23 times

Re: Engine oil leak!!

Post by vanhack »

Frank hopefully it is the rear oil seal. But would it leak from around the head/block area?

Regarding the engines...have a look at this link.

http://www.patrol4x4.co.za/viewtopic.ph ... 8&start=20
Y61 LWB Patrol TB48E, Auto
Distributor for www.quickpitchgcc.com in Middle East & India
User avatar
stobi_de
Senior Member
Senior Member
Posts: 104
Joined: 06 Oct 2014 14:16
Full Name: Frank Stober
Nickname: stobi_de
Home Town: 51647 Gummersbach - Germany
Current 4x4: Nissan Patrol GR2 /Y61 (TBE45) from 1999, short Nissan Patrol GR1 (2.8 TD) from 1992, Volvo XC60 AWD
Home Language: German
Has thanked: 9 times
Been thanked: 26 times
Contact:

Re: Engine oil leak!!

Post by stobi_de »

OK, you are right. I saw one of the pictures from a wrong position.
User avatar
Peter Connan
Moderator
Posts: 6011
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 1067 times
Been thanked: 985 times

Re: Engine oil leak!!

Post by Peter Connan »

Chances are 90% that it is either the crankshaft rear oil seal, or the gearbox input shaft oil seal.

If you split them, replace both.

However, if it is the head gasket (and it could be), you need to get it sorted ASAP as it could cause other problems.
Mag ons ons kenniskry met lekkerkry aanhoukry.
User avatar
ricster
Patrolman 1000+
Patrolman 1000+
Posts: 5850
Joined: 13 Jan 2010 11:16
Full Name: Cedric Warner
Nickname: Cedric
Home Town: Alberton Gauteng
Current 4x4: '99 Nissan Patrol 4.2 Turbo Diesel
Home Language: English
Location: LA..... No not Los Angles ..... Lower Alberton, Gauteng
Has thanked: 591 times
Been thanked: 468 times

Re: Engine oil leak!!

Post by ricster »

Just throwing a spanner in the works, as I don't know the petrol motors really. On my diesel I had a similar looking oil leak pattern. I was also sure that the rear crank seal was the culprit. But when I gave it a good investigation, this is what I found...

On my tappet/rocker cover closest to the firewall is the breather vent that ensures that there is no compression in the sump. The pipe that then fits onto the rocker cover was old and was not seating properly and with the direction of airflow from the viscous fan and general driving the fine vapour that did leak out slowly worked its way down the back of the rocker cover and head and down onto the bell housing.

A new piece of hose and clamp fixed that problem for me, and since then I have no leak.

Check if the breather is not blocked. Removing the rocker cover is simple and you probably won't even need a new gasket. Check also the rocker cover bolts are tight ( not over tight ), but over time they may have loosened up or the rubber gasket gas hardened up and is not sealing as well as it should.
Regards
Cedric
Nissan Patrol GL 4.2 Diesel Turbo (Iron Maiden)
Nissan SANI 3.0 V6 4x4 (SOLD)
Isuzu KB 280 DT 2x4 ('ol Smokey) - SOLD
Suzuki TL 1000R "V twin" (Growler) - SOLD
User avatar
Tinus lotz
Moderator
Posts: 7579
Joined: 29 Aug 2010 13:07
Full Name: Tinus lotz
Nickname: Tinus lotz
Home Town: Centurion
Current 4x4: Nissan patrol 4.8 GRX 2005

Toyota 2.7 legend 35 LWB 4X4
Home Language: Afrikaans
Has thanked: 800 times
Been thanked: 549 times

Re: Engine oil leak!!

Post by Tinus lotz »

Mabe give it a good wash and then drive a little bit of dirt road have a look where the dust sticks?
User avatar
ricster
Patrolman 1000+
Patrolman 1000+
Posts: 5850
Joined: 13 Jan 2010 11:16
Full Name: Cedric Warner
Nickname: Cedric
Home Town: Alberton Gauteng
Current 4x4: '99 Nissan Patrol 4.2 Turbo Diesel
Home Language: English
Location: LA..... No not Los Angles ..... Lower Alberton, Gauteng
Has thanked: 591 times
Been thanked: 468 times

Re: Engine oil leak!!

Post by ricster »

hahaha.... every road in Dubai is a dusty road...... :rolling: :rolling: :rolling: :rolling:
Regards
Cedric
Nissan Patrol GL 4.2 Diesel Turbo (Iron Maiden)
Nissan SANI 3.0 V6 4x4 (SOLD)
Isuzu KB 280 DT 2x4 ('ol Smokey) - SOLD
Suzuki TL 1000R "V twin" (Growler) - SOLD
User avatar
vanhack
Senior Member
Senior Member
Posts: 140
Joined: 01 Oct 2014 06:58
Full Name: Siddharth Patel
Nickname: Sid
Home Town: Dubai, UAE
Current 4x4: Y61 LWB Patrol TB48E, Auto
Home Language: English
Has thanked: 36 times
Been thanked: 23 times

Re: Engine oil leak!!

Post by vanhack »

So dropped the patrol of at Nissan dealer day before, and picked her up today. Verdict is after they looked at the leak, and cleaned the area out, and then drove for 150kms, that the wetness is from rust proofing. Which I have also noticed on the rear diff. The rust proof chemical must have a very low melting point, and the wet area was on the block, and near the exhaust manifold.

So I have been asked to keep an eye on it, and bring it back after 1000kms. But they do not suspect that engine oil is leaking. I too had my doubts as the engine oil was not depleting when checking the dipstick, or the transmission oil. But from the picture you can see it did not look good, and seemed that the leak was there.

Anyhow they also mentioned that they have never received a y61/tb48 with a leaking gasket. Hmmm so when it leaks, I am not taking it to them as they may not have experience on completing a head gasket job.

Anyway I have 2 night trip next weekend, which I can go on now!! :blonde: :blonde: :blonde: :blonde: :blonde:

So time to do a little planning.
Y61 LWB Patrol TB48E, Auto
Distributor for www.quickpitchgcc.com in Middle East & India
User avatar
ricster
Patrolman 1000+
Patrolman 1000+
Posts: 5850
Joined: 13 Jan 2010 11:16
Full Name: Cedric Warner
Nickname: Cedric
Home Town: Alberton Gauteng
Current 4x4: '99 Nissan Patrol 4.2 Turbo Diesel
Home Language: English
Location: LA..... No not Los Angles ..... Lower Alberton, Gauteng
Has thanked: 591 times
Been thanked: 468 times

Re: Engine oil leak!!

Post by ricster »

At least you have put your mind at ease before the long trip!!
Regards
Cedric
Nissan Patrol GL 4.2 Diesel Turbo (Iron Maiden)
Nissan SANI 3.0 V6 4x4 (SOLD)
Isuzu KB 280 DT 2x4 ('ol Smokey) - SOLD
Suzuki TL 1000R "V twin" (Growler) - SOLD
Post Reply

Return to “09. Engines”

Who is online

Users browsing this forum: No registered users and 9 guests