Toyota recalls LS, other models for valve spring replacement
10-14-10, 10:07 PM
#301
Pole Position
Join Date: Aug 2010
Location: Ca
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10-15-10, 07:04 AM
#302
Driver School Candidate
Ok guys,
Figured how to post pics below. This is as large as the forum would allow so hope you can see what you wanted.
Figured how to post pics below. This is as large as the forum would allow so hope you can see what you wanted.
Last edited by TexasTex; 10-15-10 at 08:47 AM.
10-15-10, 08:45 AM
#304
Driver School Candidate
Cams removed (sitting on top of engine). Note white zip tie holding variable cam timing gears in place at front of the engine.
Air hoses in front & back cylinders to keep valves in closed position before removing spring retainers. Note red paint markings on chain drives.
Closer look. Air hoses now in center two cylinders. The small protrusions at the bottom of the head that line up with each valve spring are the hydraulic stabilizers that also get replaced. They are what keeps the valve lash constant and the engine valves quiet. For those totally unfamiliar with an engine, the things that look like springs that are under the round looking washers are the valve spring and are what are being replaced - 4 per cylinder (2 intake, 2 exhaust), 16 per bank (side), 32 total.
These are the valve actuators and the round caps sit over each valve stem. They are suprisingly small compared to the old American engines. They sit under the cam. The cam rolls over the center of these, they in turn depress the valves. Note how they are grouped together the way they came off so that they can go back on their original valve stem and cam lobe (due to potential wear patterns) - its the details!
Cams back in place and torqued down. Look close and you can see the valve actuators under the cam lobes. In case you are still wondering, those 4 big "tubes" in the center of the head protrude through the valve covers and provide access to the spark plugs. They are covered by individual black coil boxes when everything is back in place. A set of wires are attached to each coil box which goes to the computer which sequentially fires each spark plug.All thats left is to reinstall the variable timing gears onto the front of the cams, re-install the valve covers, hoses, wiring, etc. Repeat on the other bank.
Last edited by TexasTex; 10-15-10 at 01:22 PM.
10-15-10, 09:01 AM
#305
Driver School Candidate
He claims that these engines are very modular in design, easy to repair and unfortunately are taken apart regularly for all kinds of reasons now a days with no issues. The good/bad news is that your mechanic will know very quickly whether he did a good repair or not
Doubt anyone will even remember this by spring time.
10-15-10, 12:11 PM
#307
Moderator
I was making an appt for an oil change just now and my dealer told me to drop my car off tomorrow so they will be doing the VSR on Mon. I said ok and called my tech to ask how things were going, he said they have four master techs working uninterrupted doing the VSR only! He said he will make sure the right guys get mine, reassuring I guess but I would hope all four are the right guys. They have done all of the CPO's along with a lot of customer cars. I will let you know how things work out when I get the car back.
10-15-10, 11:57 PM
#309
Driver School Candidate
i'm planning on making an appt for the vsr done. anyone here from so cali that already has their done and which dealership did you go to... any good recommended dealers in so cali that has good master tech ?
10-18-10, 02:03 PM
#311
Moderator
10-18-10, 05:44 PM
#313
Moderator
That was me asking and I have not received mine yet either, maybe when I get home it will be there. I have my car back so it runs little smoother & I have say quieter too. I'm positive it is not the placebo effect, all in all I'm happy!
Last edited by Tee; 10-19-10 at 11:10 AM.
10-18-10, 08:09 PM
#314
Driver School Candidate
Join Date: Apr 2009
Location: Florida
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Recall letter..
Ditto on the letter; just got it today in S. Fla. Did the recall work a week ago. So far the car runs just as before... Wonderfully!
Will post if I get any notification of an extended powertrain warranty or something else....
Will post if I get any notification of an extended powertrain warranty or something else....
10-18-10, 09:21 PM
#315
emailed my SA today to see how things were going and to inquire about the service. He told me that they had 6 full time master techs working on this only at Crown in Ontario, CA. So far its been very smooth with everyone happy. I asked if he would put me in line and he said sure.. how about Dec 1 as that is the first available appointment. This is all by word of mouth as only a few of the people in line received letters. I guess some of the reservations are coming down and people are starting to get this procedure out of the way. I expected him to say how about next week, but there is a 6 week waiting list to get it done at just this dealership.