You are here: Forums Sedans Toyota Avalon Toyota Avalon Engine Questions

Toyota Avalon Engine Questions

353 messages,  Last post on Nov 16, 2009 at 7:10 AM

You are in the Toyota Avalon Forum. Your Hosts are pat & karens

What is this discussion about? Toyota Avalon, Engine, Sedan

Messages Page 29 of 36 1 ... 26 27 28 29 30 31 32 ... 36 Prev Next Last

Go To Msg # Search This Discussion

#278 of 353 2000 Avalon recommendation by jim3 Aug 03, 2008 (6:17 am)
I had my 2000 Avalon in for service recently and the mechanic said with a car this old, and with 180,000 miles, he would not use gasohol in it. I have always used the cheapest gas around since the car was new and have never had a problem. The car has been very trouble free and I'd like to keep it that way, but these gas prices are killing me. What is the story about gasohol in an engine this old? He left before I had a chance to ask him. Incidentally most of my miles are highway miles as I live in the country. Replies to this message: Mr_Shiftright (Aug 03, 2008 9:01 am) amauhry (Aug 04, 2008 6:28 am)
#279 of 353 Re: 2000 Avalon recommendation [jim3] by Mr_Shiftright HOST Aug 03, 2008 (9:01 am)
Replying to: jim3 (Aug 03, 2008 6:17 am) Your owner's manual should tell you about Toyota's recommendations. In general, a mixture of no more than 10% ethanol should be okay. You could try it and see how the car behaves. You may end up with worse gas mileage and so end up saving nothing.
#280 of 353 Re: 2000 Avalon recommendation [jim3] by amauhry Aug 04, 2008 (6:28 am)
Replying to: jim3 (Aug 03, 2008 6:17 am) The 2GR-FE engine in late model Avalons is designed to digest the 10% Ethanol in the mix and still be fuel efficient. If your engine is, try to keep the blend within the 10% bracket; otherwise, you will be altering the stoichiometric mixture of the fuel. Keep in mind that gasohol contains additional oxygen. This “extra” oxygen will fool the oxygen sensors into thinking that the combustion mixture is lean; in response, the ECU will keep your fuel injectors opened a bit longer to compensate for the “unbalanced” air-fuel ratio hence a rich mixture and a less fuel-efficient engine. All of the above would happen if your engine is not designed to handle the extra oxygen in E10 or if you go beyond the 10% allowance in any ECU-controlled engine.   Amaury '08 Limited
#281 of 353 Engine RPM question by rpfingsten Aug 26, 2008 (3:29 am)
Hi guys... got a question for you. I was driving down the interstate today with my cruise set on 70 mph. I just happened to glance over at the tach and noticed it was showing about 2100 rpm's at 70 mph. Just wondering if that anyone else has ever paid attention to that or if 2100 rpms at that speed was kind of high. Just curious.   Roland Replies to this message: binderzoo (Aug 26, 2008 4:06 am) tjc78 (Aug 26, 2008 4:24 am) captain2 (Aug 26, 2008 5:38 am) amauhry (Aug 26, 2008 6:26 am)
#282 of 353 Re: Engine RPM question [rpfingsten] by binderzoo Aug 26, 2008 (4:06 am)
Replying to: rpfingsten (Aug 26, 2008 3:29 am) That's what mine is at that speed which really isn't that fast. I used to have a Taurus that showed 3000 at 80mph
#283 of 353 Re: Engine RPM question [rpfingsten] by tjc78 Aug 26, 2008 (4:24 am)
Replying to: rpfingsten (Aug 26, 2008 3:29 am) 2100 70 is dead on.
#284 of 353 Re: Engine RPM question [rpfingsten] by captain2 Aug 26, 2008 (5:38 am)
Replying to: rpfingsten (Aug 26, 2008 3:29 am) big ole torquey (and relatively fuel inefficient) V8s will generally pull something less than 2000 rpm at 70 - maybe 1700 or 1800. They can do this because of all that torque available at those lower engine speeds. The Toyota 2GR OTH is a free revving smaller V6 that is actually happier (from an operational efficiency point of view) at engine speeds significantly more than that - what is remarkable about the engine is that the CVVTi valve timing and ignition control systems that are built into the engine can effectively broaden that torque curve to rival that of a V8 in terms of lower engine speed torque availabilities so that the Avalon can be the same 'pleasant' highway car as those V8s and still be able to return FE in the 30s. The 2GR is easily the best part of the Avalon and a remarkable achievement for Toyota.
#285 of 353 Re: Engine RPM question [rpfingsten] by amauhry Aug 26, 2008 (6:26 am)
Replying to: rpfingsten (Aug 26, 2008 3:29 am) These are my observations (confirmed) while driving on flat surface and no passenger/cargo loads   60 mph = 1600 rpm 65 mph = 1900 rpm 70 mph = 2100 rpm 75 mph = 2200 rpm   Amaury '08 Limited
#286 of 353 Cam Timing 97 Avalon by teryliv Sep 14, 2008 (2:12 pm)
I am reassembling a 97 avalon v6 engine and am using a Haynes repair manual. When installing the cams it says on the Right-Rear head to align the 2 dots of each rear cam gear so that they point together. For the Front-Left head they say to align 1 dot of each rear cam gear together. The 1 dot is 180 degrees apart from the 2 dots.   When I do as they say the rear-right head appears to have the pointer on its timing belt cam gear aligned 180 cam degrees out. When everything else says TDC, this cam gear is 180 Cam degrees out. The intake valves are in a position to begin opening.   If I set the rear cam gears so that only 1 dot is pointing at each other, then the timing belt gear for this head and all the valve are in the TDC position.   Is my logic correct and the manual wrong? If not why?   Thanks,   Terry in Colorado Replies to this message: ttyler2000 (Sep 26, 2008 3:36 am) ttyler2000 (Sep 26, 2008 6:34 pm)
#287 of 353 Re: Cam Timing 97 Avalon [teryliv] by ttyler2000 Sep 26, 2008 (3:36 am)
Replying to: teryliv (Sep 14, 2008 2:12 pm) Terry, Did you get your car back together? If so what was your outcome with the gears. I am doing the same thing an 02 Camry and have the exact same issue with the right bank timing gears. I am going to try and finish it today and have put it together with both heads using the one dot mark. Regardless of what the Toyota experts have told me, It has to be right or the front timing gear would have to go in 180 degrees off. I don't think there is a lot of DIY's out there changing head gaskets etc that are having to remove the cams. If you were changing the belt only you wouldn't be able to even see the gears so you wouldn't know if they are right or not and would only use your camshaft belt gear marks to do the job. I will post a follow up to this hopefully tonight if I get it done and will let you know. My email is: hunterctcn.net if you want to send me a direct response. Replies to this message: ttyler2000 (Sep 26, 2008 6:34 pm)

Messages Page 29 of 36 1 ... 26 27 28 29 30 31 32 ... 36 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Sedans Toyota Avalon Toyota Avalon Engine Questions