CAM Damage found during J02 Recall - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

MaXimus · 10-07-2019, 05:38 AM

So I went into the dealer for J02 recall and when they pulled the motor and got to the cam's this what they found. Oil pump is apparently fine and working, but I'm trying to figure out how this has happened in the first place, car has 146,000km (90k miles) been serviced with the dealer up to 100,000km (62k miles) and every 10,000 km (6,200 miles) afterwards with Motul/AMS 0w-20 and genuine subaru filter.

Motor has never been opened I've got crawford intake blocks, Robispec Oil/Radiator on the car. Which shouldn't make any difference. My other concern is if the cam's were starved of oil, what does the crankshaft look like considering it's a known point of failure.

TIA

MaXimus · 10-13-2019, 02:04 PM

Not a single response?

Ultramaroon · 10-13-2019, 02:51 PM

Loss of pressure at some point. If only that journal is scored then look for the blockage just upstream.

MaXimus · 10-15-2019, 04:57 AM

Quote:

Originally Posted by Ultramaroon

Loss of pressure at some point. If only that journal is scored then look for the blockage just upstream.

Unfortunately both intake and exhaust have scoring on both sides.

Ultramaroon · 10-15-2019, 02:15 PM

Quote:

Originally Posted by MaXimus

Unfortunately both intake and exhaust have scoring on both sides.

Here is a functional diagram of the oiling system. Not very helpful but it's a start.

https://demos.starbase7.net/t3Portal...0558V001X.html

Slightly better is this image.

https://demos.starbase7.net/t3Portal...0558U001X.html

Still can't identify the cause of the starvation but at least it gives you an idea. These pages are out of the new-features section of the manual. Link is in my signature line.

10-07-2019, 05:38 AM	#1
MaXimus Meh! Join Date: Jul 2012 Drives: Satin White, 86, Manual Location: Dubai Posts: 98 Thanks: 224 Thanked 18 Times in 12 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	CAM Damage found during J02 Recall So I went into the dealer for J02 recall and when they pulled the motor and got to the cam's this what they found. Oil pump is apparently fine and working, but I'm trying to figure out how this has happened in the first place, car has 146,000km (90k miles) been serviced with the dealer up to 100,000km (62k miles) and every 10,000 km (6,200 miles) afterwards with Motul/AMS 0w-20 and genuine subaru filter. Motor has never been opened I've got crawford intake blocks, Robispec Oil/Radiator on the car. Which shouldn't make any difference. My other concern is if the cam's were starved of oil, what does the crankshaft look like considering it's a known point of failure. TIA __________________ RAYS TE37V 17X9 / MICHELIN 245/40/R17 / KW V3 / RACESENG TOP HATS / MOTUL 5.1 + BRAIDED LINES / FERODO DS2500 BRAKE PADS / NEXUS 7 IN DASH / VDS UEL HEADERS / CRAWFORD POWER BLOCKS/ K&N DROP IN FILTER / Custom 3 inch header back catless exhaust / Varex 3in Muffler / HT AUTO LIP KIT / VALENTI TAIL LIGHTS / MORIMOTO PROJECTOR + HID. Last edited by MaXimus; 10-07-2019 at 05:53 AM.

10-13-2019, 02:04 PM	#2
MaXimus Meh! Join Date: Jul 2012 Drives: Satin White, 86, Manual Location: Dubai Posts: 98 Thanks: 224 Thanked 18 Times in 12 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Not a single response? __________________ RAYS TE37V 17X9 / MICHELIN 245/40/R17 / KW V3 / RACESENG TOP HATS / MOTUL 5.1 + BRAIDED LINES / FERODO DS2500 BRAKE PADS / NEXUS 7 IN DASH / VDS UEL HEADERS / CRAWFORD POWER BLOCKS/ K&N DROP IN FILTER / Custom 3 inch header back catless exhaust / Varex 3in Muffler / HT AUTO LIP KIT / VALENTI TAIL LIGHTS / MORIMOTO PROJECTOR + HID.

10-13-2019, 02:51 PM	#3
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,395 Thanks: 53,053 Thanked 37,228 Times in 19,308 Posts Mentioned: 1117 Post(s) Tagged: 9 Thread(s)	Loss of pressure at some point. If only that journal is scored then look for the blockage just upstream. __________________ service manuals

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