front main seal leak - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

95se · 03-09-2018, 05:06 PM

Was wondering if its common for the front mail seal to leak oil and what are the most common oil leaks on the KA motor?

*brndck* · 03-09-2018, 06:05 PM

Pressure wash the engine,drive it, inspect

kyral · 03-10-2018, 11:52 AM

im gonna say the front main is the most common source of oil leaks. seems like every KA leaks there

mr.nismo. · 03-10-2018, 05:34 PM

At the mileage your engine is probably at, there will be a lot of leaks. The crank seal is only about a 30 min job though.

CamberWear · 03-11-2018, 03:18 AM

Rear and front seals could start leaking as early as 130k, my zenki is a perfect example of this. - get to them before they coat the underbody of your car in oil. Now at 160k it is showing signs of valve cover leakage

95se · 03-11-2018, 07:32 AM

I started having leaks practically since I got the car in '97 with 39k. Rear crank seal then oil pan seal replaced at end of '99. Oil pan twice since, rear crank again, rear main seal once and a year ago front crank and valve cover gasket (second)

[240sx] · 03-11-2018, 11:30 AM

Leaks or seepage?

When I got my S14 (odo@220k), it had a front main seal, oil presure sending unit, exhaust, water pump (couple hundred miles later), and powersteering resevior leak. Replaced them all*, and now only have a minor oil pan & pwr steering res. seepage, 104K miles later. No leaks, just a light coating of grime.

Sent from my SM-G930P using Tapatalk

95se · 03-13-2018, 05:41 PM

leaks. PS was ruined at the dealer when they replaced the oil pan gasket under warranty. Rebuilt rack that was put in started leaking 8 yrs later then another rack was put in 2011 that had a pinion problem where it didn't go back to center and started leaking in 2013. So it was sent off to be rebuilt but they only filled it up probably just less than halfway up in the reservoir. Started making buzzing noise then added dextron to it but now the steering wheel is easier to turn left and stays just to the left off center. So don't know if its the pinion or what.

jedi03 · 03-15-2018, 07:54 AM

everything...ps, oil pan, front and rear, valve cover...etc...replaced seals, resealed everything, leak free till sold the cars! 4x lol...about 3 years of driving each one

brandon519 · 03-15-2018, 07:49 PM

They leak. Just changed mine on my single cam.

Kingtal0n · 03-15-2018, 09:02 PM

Quote:

Originally Posted by brndck

Pressure wash the engine,drive it, inspect

it still amazes me how many disbelieve when I say "wash the engine" or "get in there with some simple green..."

How can you not know what everything is, what it does and how water proof it is? I mean sheesh XD

and you depend on this...

03-09-2018, 05:06 PM	#1
95se Zilvia Junkie Join Date: Dec 2002 Location: Arlington, TX Posts: 385 Trader Rating: (0) Feedback Score: 0 reviews	front main seal leak Was wondering if its common for the front mail seal to leak oil and what are the most common oil leaks on the KA motor? __________________ z32 front brakes, spl tc rods

03-10-2018, 11:52 AM	#3
kyral Zilvia Junkie Join Date: Nov 2012 Location: wisconsin Age: 33 Posts: 450 Trader Rating: (7) Rides Gallery: kyral Feedback Score: 7 reviews	im gonna say the front main is the most common source of oil leaks. seems like every KA leaks there __________________ The Game you lose haha

03-11-2018, 03:18 AM	#5
CamberWear Zilvia Junkie Join Date: Sep 2012 Location: Mid/East TN Posts: 331 Trader Rating: (4) Feedback Score: 4 reviews	Rear and front seals could start leaking as early as 130k, my zenki is a perfect example of this. - get to them before they coat the underbody of your car in oil. Now at 160k it is showing signs of valve cover leakage __________________ 95 SE in progress... Daily, Ka, Rezax, Navan, future cool car

03-11-2018, 07:32 AM	#6
95se Zilvia Junkie Join Date: Dec 2002 Location: Arlington, TX Posts: 385 Trader Rating: (0) Feedback Score: 0 reviews	I started having leaks practically since I got the car in '97 with 39k. Rear crank seal then oil pan seal replaced at end of '99. Oil pan twice since, rear crank again, rear main seal once and a year ago front crank and valve cover gasket (second) __________________ z32 front brakes, spl tc rods

03-13-2018, 05:41 PM	#8
95se Zilvia Junkie Join Date: Dec 2002 Location: Arlington, TX Posts: 385 Trader Rating: (0) Feedback Score: 0 reviews	leaks. PS was ruined at the dealer when they replaced the oil pan gasket under warranty. Rebuilt rack that was put in started leaking 8 yrs later then another rack was put in 2011 that had a pinion problem where it didn't go back to center and started leaking in 2013. So it was sent off to be rebuilt but they only filled it up probably just less than halfway up in the reservoir. Started making buzzing noise then added dextron to it but now the steering wheel is easier to turn left and stays just to the left off center. So don't know if its the pinion or what. __________________ z32 front brakes, spl tc rods

03-10-2018, 05:34 PM	#4
mr.nismo. Nissanaholic! Join Date: Feb 2012 Location: Oxnard, CA Age: 31 Posts: 1,890 Trader Rating: (31) Feedback Score: 31 reviews	At the mileage your engine is probably at, there will be a lot of leaks. The crank seal is only about a 30 min job though.

03-11-2018, 11:30 AM	#7
[240sx] Zilvia Addict Join Date: Oct 2013 Location: Highdesert Posts: 849 Trader Rating: (1) Feedback Score: 1 reviews	Leaks or seepage? When I got my S14 (odo@220k), it had a front main seal, oil presure sending unit, exhaust, water pump (couple hundred miles later), and powersteering resevior leak. Replaced them all*, and now only have a minor oil pan & pwr steering res. seepage, 104K miles later. No leaks, just a light coating of grime. Sent from my SM-G930P using Tapatalk

03-15-2018, 07:54 AM	#9
jedi03 Nissanaholic! Join Date: Jul 2008 Location: albuquerque Posts: 1,842 Trader Rating: (8) Feedback Score: 8 reviews	everything...ps, oil pan, front and rear, valve cover...etc...replaced seals, resealed everything, leak free till sold the cars! 4x lol...about 3 years of driving each one

03-15-2018, 07:49 PM	#10
brandon519 Join Date: Jan 2016 Location: Chicago IL Posts: 37 Trader Rating: (0) Feedback Score: 0 reviews	They leak. Just changed mine on my single cam.