egads (she/her)
Argh, buggeration. Then the dual port and hooking up a gauge would be the best bet.
Stew
Jonbot - Moonbi hey, grew up in Tamworth so yes i do know where that is!!!
Is there anyway to test the VVT unit as i have thought that this could be the case??
Stew
I'll look into a dual port sensor rhis weekend, hopefully if time permts! Any suggestions for brand/type?
timbo
I have replaced the vvt cam gears before for oil leaks, the oil pressure would bleed off and we would get a similar noise as it was revved off idle and the gear will slop around until the oil pressure built back up. You could watch the cam gear move out away from the head but there was an obvious oil leak associated with this
Stew
Tim,
Was changing the VVt cam gears difficult or did you get someone to do them for you?
timbo
Short answer is yes. There is no key way on the cams so installation requires the camshafts to be locked together at the rear with special tool. There is also a specific way to install the gears to the cams to ensure that they are at the end limit of the vvti travel. Not impossible but can cause catrastrophic damage if done incorrectly and with twin vvti its easy to be out a tooth or two the process is detailed on vida. Are you getting any fault codes or oil leaks?
Stew
No oil leaks and no codes from VIDA?? Looking into getting an oil pressure test gauge and hooking up to start with.and go from there.
egads (she/her)
Sounds like a plan.
Philia_Bear
Generally VIDA will throw a code for the valves at the top of the engine when something in the VVT system starts going wonky
Stew
Yep after all the research etc I have done over the last week or so I tend to agree. Will start with the oil pressure test and report back
Philia_Bear
Stew
Thanks Philia Bear great help
Cheers
Stew
Hi all,
Its been a while but i have finally got some oil pressure readings.
50psi at cold idle
27psi at hot idle in and out of drive
50 psi at hot start after leaving vehicle for 1/2 or so and slowly decreases to 27psi when idling (this is when noise in cam area normally occurs at hot start)
Engine hot -
1500rpm 40-50psi
2000rpm 65psi
mmm not sure what to do here???
Might take sump off and replace the oil o rings etc?? This noise was particularly bad yesterday as it was very warm ambient temp.
Any suggestions
Ex850R
While I don't know what the pressures should be , are you using a Volvo oil filter as @AshDVS suggests? Have you put in Penrite as @Philia_Bear suggested , which is what I use. Proper oil is a big thing with these motors. It is worth dumping what you have after a good hot run and doing a Penrite fill.
After flushing my motor with Castrol for a short time I put in Penrite and the tapping has 98% gone , only occasionally on a start up cold.
L.
Stew
Hi,
Yep running Volvo filter. Will try the Penrite oil and see if that helps.
Philia_Bear
Oil pressure is way way low
Minimum 80psi at cold start and 50psi at hot idle
Tentacle wagon with a worn out 300000km b6304 with 5w40 full syn got 100psi at cold start and 70psi at hot idle
At 27psi the engine is going to die a quick death
Swap it to 10w50 hpr10 full syn and put a Volvo filter on it and retest
If that does not fix it....
I've never seen or heard of the gaskets or o rings on the pump going, only leaking a little bit out the front
It really sounds like someone ignored a bunch of oil changes and the bearings have worn enough that shits going south
Otherwise could be a failed oil squirter that's just pissing. I have seen it once on a newish motor that carked itself
Stew
Thanks Philia Bear, will try the 10w/50 and retest. No oil changes missed by me at least and the service book is all good.
Anyway I will persist for the time being. Joe at Lupica Motors did the test for me and also said I could try a heavier weight oil... Joe - great service thanks for recommendation
Stew
Hi all,
Took some videos over the weekend and checked the play in the hubs and to my surprise there is a fair bit of play!!!
As you can see in the first video when hot after sitting for 1/2hr or so there is substantial play in the hub. The other two videos show the difference when the vehicle is cold and has sat overnight and the last link is the original video when I first heard the noise!!
Not sure what is considered normal, but i would think there should not be as much play. Any thoughts?
Cheers
Stewart
Philia_Bear
videos.private
CamZH
This is Åska while "hot".
