XFR Engine noise
#41
Originally Posted by TXFireblade
Thanks for the update. Did the mechanic provide any kind of invoice with part numbers etc. that you can share? It might be handy for others if a similar situation occurs.
Thanks in advance.
Thanks in advance.
Posting pic to compare prices
#42
#43
The following users liked this post:
Erobles396010 (07-25-2017)
#45
Originally Posted by Erobles396010
Is there any way i can test to see if its really that
#47
Originally Posted by Erobles396010
Yea i hear it on the drivers side where the oil cap is so how much did u pay to repair it
I paid $4,500 to an indi and he replaced everything including the cvt. The dealer wanted $6,500 for chain , tensioners, and guides.
#49
Originally Posted by Erobles396010
So it has to have no play at all? I did that and it does have slack on it
The following users liked this post:
Erobles396010 (07-27-2017)
#53
ok let me see if this works i uploaded the videos on youtube this video here is the cold start
this one here is the warm start
this one here after the warm start i tried checking the slack on the chain but i couldnt get my finger in there so i used a screwdriver
lets see if the links work let me know if you see them
this one here is the warm start
this one here after the warm start i tried checking the slack on the chain but i couldnt get my finger in there so i used a screwdriver
lets see if the links work let me know if you see them
#54
have a look on this youtube video :
Although I don't understand one word of russian language pictures will tell you
clearly the cause of the engine noise.
- stretched chain
- tensioner piston grooved into tensioner blade.
- malfunction of the spring / ratched mechanism inside the tensioner because stroke of piston is exceeded
by groove into tensioner blade and stretched chain.
- unsufficient preload of timing chain during low oil pressure conditions (startup , idle) results in rattle noise.
- possible damage of VVT gears due to chain rattle (shown in another video)
To get rid of this problems new tensioner blades with a steel insert at the piston contact
surface are shown as well as modified tensioner units with a different angular position
towards the tensioner blade (more or less spring preload on timing chain ?).
Hence getting the correct (newer) spareparts will be important to hopefully do the job only one time.
Regards
Ulrich
Although I don't understand one word of russian language pictures will tell you
clearly the cause of the engine noise.
- stretched chain
- tensioner piston grooved into tensioner blade.
- malfunction of the spring / ratched mechanism inside the tensioner because stroke of piston is exceeded
by groove into tensioner blade and stretched chain.
- unsufficient preload of timing chain during low oil pressure conditions (startup , idle) results in rattle noise.
- possible damage of VVT gears due to chain rattle (shown in another video)
To get rid of this problems new tensioner blades with a steel insert at the piston contact
surface are shown as well as modified tensioner units with a different angular position
towards the tensioner blade (more or less spring preload on timing chain ?).
Hence getting the correct (newer) spareparts will be important to hopefully do the job only one time.
Regards
Ulrich
The following 2 users liked this post by f-driver:
Erobles396010 (07-27-2017),
mechanicalturkey (07-28-2017)
#56
The following users liked this post:
Erobles396010 (07-27-2017)
#58
It's do able, and there is a a PDF out there if you google. You can buy the timing tools off eBay or amazon.
My indi used a liquid gasket. Not your standard stuff. It's gray in color and seals well. Just remember to depressurize the fuel pressure. It's at 1500 psi and can hurt you.
I priced the parts and my coat was the deciding factor.
http://replace-timing-belt.com/how-t...-v8-awd-2009_/
My indi used a liquid gasket. Not your standard stuff. It's gray in color and seals well. Just remember to depressurize the fuel pressure. It's at 1500 psi and can hurt you.
I priced the parts and my coat was the deciding factor.
http://replace-timing-belt.com/how-t...-v8-awd-2009_/
#60
have a look on this youtube video :
https://www.youtube.com/watch?v=ecIR4s86iF8
Although I don't understand one word of russian language pictures will tell you
clearly the cause of the engine noise.
- stretched chain
- tensioner piston grooved into tensioner blade.
- malfunction of the spring / ratched mechanism inside the tensioner because stroke of piston is exceeded
by groove into tensioner blade and stretched chain.
- unsufficient preload of timing chain during low oil pressure conditions (startup , idle) results in rattle noise.
- possible damage of VVT gears due to chain rattle (shown in another video)
To get rid of this problems new tensioner blades with a steel insert at the piston contact
surface are shown as well as modified tensioner units with a different angular position
towards the tensioner blade (more or less spring preload on timing chain ?).
Hence getting the correct (newer) spareparts will be important to hopefully do the job only one time.
Regards
Ulrich
https://www.youtube.com/watch?v=ecIR4s86iF8
Although I don't understand one word of russian language pictures will tell you
clearly the cause of the engine noise.
- stretched chain
- tensioner piston grooved into tensioner blade.
- malfunction of the spring / ratched mechanism inside the tensioner because stroke of piston is exceeded
by groove into tensioner blade and stretched chain.
- unsufficient preload of timing chain during low oil pressure conditions (startup , idle) results in rattle noise.
- possible damage of VVT gears due to chain rattle (shown in another video)
To get rid of this problems new tensioner blades with a steel insert at the piston contact
surface are shown as well as modified tensioner units with a different angular position
towards the tensioner blade (more or less spring preload on timing chain ?).
Hence getting the correct (newer) spareparts will be important to hopefully do the job only one time.
Regards
Ulrich
I'd take Shadow993 advices with a grain of salt. You can say, it's full of...
What does he say.... Shitake
The fuel pressure maybe high... Just slightly Crack the nut and let it
bleed, the fuel line is small, nothing is going to happen. Now if your fuel line is as big as a fire hose with 1500+ psi, then I'd be careful.
Erobles396010 perfectly explains what's causing the noise. I've seen chains slapping so bad that it'll damage the VVT (not cvt like shadow993 explained it) sprockets.
It can be as simple as
If there's noise and you have no slack in the chains, you might be able to get away with just the tensioners and guides,
To
Everything timing related with vvti gears.
To....
While preforming the timing chains, the fuel pump tensioner are bad.... Then the motor has to come out and taken apart (I hope this doesn't happen to anyone) to replace the fuel pump tensioner., then all timing chain related parts with vvt
To the worst,
Where, when their done with the timing and upon installing crankshaft pulley, the crank bolt breaks (factory torque spec is 200 nm and an additional 270 deg)
fix for that would be a new engine.
I definitely would not recommend any 1st timer and/or inexperienced person to perform this job. These motors are interference motors, you mess up on timing, there's a chance you'll need to buy a new motor
Last edited by sir2; 07-28-2017 at 05:17 PM.