FA20 Engine Oiling, Bearings, and Starvation - Page 47 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Luckrider · 10-10-2015, 04:38 PM

Quote:

Originally Posted by moto-mike

Good catch.

A few tidbits here as we're tearing down into a 3rd FA20 just in the last 4 weeks...

2014/07 appears to be the cutoff for when subaru had a field day and made some major changes to the FA20. Valves, valve stem seals, rocker oilers, rockers all appear to have changes right around there (though could have been in steps). We still have to measure the 3rd fa20 (15 wrx) to see where they left off there, but clearly subaru had enough reason to change around the whole head specification. While we can't speculate exactly what the reasons may be, I think it is fair to say that the later motors have had some additional input in regards to what the engineers think is a better approach.

FYI for those doing this themselves, the VIN based parts lookup is not accurate here. Valve lenghts, stem seal bore, and rocker specs need to be measured.

If anyone is curious about this, one of those is mine thanks to what appeared to possibly be oiling issues.

JB86'd · 10-11-2015, 01:48 AM

@Nigelr32 what is the MFG date on your door panel for your 2014? Curious as I have a '14 manufactured in 08/13, wonder if I have these changes or not.

Ultramaroon · 10-11-2015, 01:53 AM

Quote:

Originally Posted by JB86'd

@Nigelr32 what is the MFG date on your door panel for your 2014? Curious as I have a '14 manufactured in 08/13, wonder if I have these changes or not.

I want to pre-emptively tear into mine. :/

Darryljr11 · 10-14-2015, 12:39 PM

So is anyone posting to this thread running an element tuning built motor?

Luckrider · 10-14-2015, 12:42 PM

Quote:

Originally Posted by Darryljr11

So is anyone posting to this thread running an element tuning built motor?

I couldn't afford one when my engine went

BRZGM3 · 10-14-2015, 12:50 PM

Element didn't build my motor but im running their "big valve head" package on my built motor

Sent from my SGH-T999 using Tapatalk

Nigelr32 · 10-14-2015, 12:57 PM

Quote:

Originally Posted by JB86'd

@Nigelr32 what is the MFG date on your door panel for your 2014? Curious as I have a '14 manufactured in 08/13, wonder if I have these changes or not.

My car was built 12/13 mate.

markitect · 10-15-2015, 12:06 PM

Quote:

Originally Posted by solidONE

That's it.. I'm going to trade my '13 FRS in for a '15 BRZ.

That's one of the reasons I leased my 13, and now happily own a 15.

solidONE · 10-15-2015, 02:02 PM

Quote:

Originally Posted by markitect

That's one of the reasons I leased my 13, and now happily own a 15.

That's pretty smart.

GT86_PRAGUE · 11-20-2015, 08:35 AM

Does anyone know if it is safe to remove stock oil pressure switch? I need a place where to put analog oil temp sensor. I have extra oil pressure in galley plug. I also have Perrin oil cooler and I am not a fan of putting another oil plate.
So, is the stock oil pressure sender just for the dummy light or is it used by ECU to anything else? Can I remove it without consequences?
I found some threads here where people removed it, but I just want to be sure.
Thanks.

celek · 11-20-2015, 09:37 AM

Quote:

Originally Posted by GT86_PRAGUE

Does anyone know if it is safe to remove stock oil pressure switch? I need a place where to put analog oil temp sensor. I have extra oil pressure in galley plug. I also have Perrin oil cooler and I am not a fan of putting another oil plate.
So, is the stock oil pressure sender just for the dummy light or is it used by ECU to anything else? Can I remove it without consequences?
I found some threads here where people removed it, but I just want to be sure.
Thanks.

Not at home to look at the Factory manual but usually the switches are used for the dummy light on the dashboard not the ECU if I recall.

Nigelr32 · 11-20-2015, 11:34 AM

The FA20 has two switches on the oil gallery. either one measures temp and one measures pressure, or one is the light and one is pressure. The stock ECU definitely reads oil pressure, not sure about oil temperature.

Gear_One_Performance · 11-20-2015, 11:38 AM

Quote:

Originally Posted by Nigelr32

The FA20 has two switches on the oil gallery. either one measures temp and one measures pressure, or one is the light and one is pressure. The stock ECU definitely reads oil pressure, not sure about oil temperature.

I'm fairly certain it's the other way around. The switch right by the filter is for the light and then there's a temp sensor right next to it.

LS1M · 11-20-2015, 01:21 PM

The stock pressure switch is to the left as you look at the block. All it does is switch on the dash light at around 2.5 psi. Does not go to the ECU. The sensor on the right is temperature, and it does go to the ECU.

10-11-2015, 01:48 AM	#646
JB86'd Senior Member Join Date: Oct 2013 Drives: JAWS Location: socal Posts: 703 Thanks: 753 Thanked 437 Times in 224 Posts Mentioned: 27 Post(s) Tagged: 1 Thread(s)	@Nigelr32 what is the MFG date on your door panel for your 2014? Curious as I have a '14 manufactured in 08/13, wonder if I have these changes or not. __________________

11-20-2015, 11:34 AM	#656
Nigelr32 Senior Member Join Date: Oct 2014 Drives: '14 GT86 project, '13 GT86 DD Location: UK Posts: 249 Thanks: 99 Thanked 263 Times in 100 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	The FA20 has two switches on the oil gallery. either one measures temp and one measures pressure, or one is the light and one is pressure. The stock ECU definitely reads oil pressure, not sure about oil temperature. __________________ Nige '14 GT86, '13 GT86 Build :http://www.ft86club.com/forums/showthread.php?t=75794

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FA20 Engine component photos	Crawford	FR-S & 86 Photos, Videos, Wallpapers, Gallery Forum	89	02-22-2016 02:31 AM
FA20 Engine component photos	Crawford	Engine, Exhaust, Transmission	46	01-26-2015 05:19 AM
Engine Hardware, Gaskets, & Bearings Oh My; All on sale at FR Sport.	FRSport.com	Engine, Exhaust, Bolt-Ons	0	01-10-2014 12:33 PM
FA20 Le Mans Race Engine	SilverSkyline210	Engine, Exhaust, Transmission	11	11-17-2013 11:24 PM

10-14-2015, 12:50 PM	#650
BRZGM3 Senior Member Join Date: Nov 2013 Drives: CBS brz limited Location: Norfolk, VA Posts: 180 Thanks: 64 Thanked 30 Times in 24 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Element didn't build my motor but im running their "big valve head" package on my built motor Sent from my SGH-T999 using Tapatalk

11-20-2015, 01:21 PM	#658
LS1M Senior Member Join Date: Mar 2015 Drives: 2015 BRZ Location: Texas Posts: 100 Thanks: 18 Thanked 37 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The stock pressure switch is to the left as you look at the block. All it does is switch on the dash light at around 2.5 psi. Does not go to the ECU. The sensor on the right is temperature, and it does go to the ECU.

User Name		Remember Me?
Password