what causes 2nd piston melt
#1
what causes 2nd piston melt
Help!
I have a 99 V impreza turbo 2000 uk car. It has 62000 miles full subaru history. It has a K&N induction kit which was fitted at 30000 miles and has a magnex 6x9 oval cat back system also on since 30000. It has a GGR DV and always run on Super unleaded or optimax. Last week the engine developed a knocking noise from the botttom end and subaru have said its the 2nd piston starting to melt and its damaged the bore therfore needs a short motor.
Please can anyone with technical knowledge tell me what could of caused this to happen. The car is hardly ever driven hard always warmed uo and down and i have had it as it stands for 12,000 miles
thanks
Scott
I have a 99 V impreza turbo 2000 uk car. It has 62000 miles full subaru history. It has a K&N induction kit which was fitted at 30000 miles and has a magnex 6x9 oval cat back system also on since 30000. It has a GGR DV and always run on Super unleaded or optimax. Last week the engine developed a knocking noise from the botttom end and subaru have said its the 2nd piston starting to melt and its damaged the bore therfore needs a short motor.
Please can anyone with technical knowledge tell me what could of caused this to happen. The car is hardly ever driven hard always warmed uo and down and i have had it as it stands for 12,000 miles
thanks
Scott
#2
its a common problem with 99my cars when they / you fit a new engine get the ecu rewrighten this will stop it happening again any subaru dealer will be aware of this or at least should be
#3
Scooby Regular
iTrader: (1)
Join Date: Mar 2002
Location: North East Subaru Forum
Posts: 3,920
Likes: 0
Received 0 Likes
on
0 Posts
you could have a MAF (mass air flow) sensor fault on the car that doesn't show up on the test equipment.
its a very common fault with the v5/v6 cars.
that would be the first thing i would replace on a my99 car with an engine problem like what you have suffered.
the sensor is around £70 from your local dealer.
i would also look at replacing the fuel pump with a uprated walbro one just in case its a fueling issue as the pumps are also known to be a weak point.
also it would be a good idea to fit some instrimentation to keep an eye on the AFR (air fuel ratio) and a knocklink to warn you of engine distroying detination.
its a very common fault with the v5/v6 cars.
that would be the first thing i would replace on a my99 car with an engine problem like what you have suffered.
the sensor is around £70 from your local dealer.
i would also look at replacing the fuel pump with a uprated walbro one just in case its a fueling issue as the pumps are also known to be a weak point.
also it would be a good idea to fit some instrimentation to keep an eye on the AFR (air fuel ratio) and a knocklink to warn you of engine distroying detination.
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM
bluebullet29
General Technical
9
05 October 2015 02:17 PM