Some details of the 2AZ-FE engine
in [Toyota]
|
From: Built_Well on 15 Jul 2008 01:38 Ray O wrote: > "Built_Well" <Built_Well_Toyota(a)hotmail.com> wrote in message > news:899682da-08dc-42cd-9f1b-2051047899f4(a)x35g2000hsb.googlegroups.com... > <snipped> > > > > Does anyone know why the two Toyota manuals recommend > > different oil amounts for the same 2AZ-FE engine? That's > > a big half-quart difference. > > The different oil capacities can be due to different capacities in the oil > pans, which are due to different shapes. > > > > > I have always put in 4.25 quarts, instead of the 4.0 > > quarts recommended in my manual, but do you think I should > > increase it to 4.5 quarts, which would equal the > > amount recommended in the new '08 manual? > > ======================= > > No. Stick to the recommended amount in your manual. > > > Frothing probably wouldn't be a problem with that small > > amount extra, but you never know. > > It depends on how excided you get when you add the extra oil. > > The oil is not going to foam with an extra half quart. > -- > > Ray O > (correct punctuation to reply) ============================ Yeah, from what I've read online from reliable sources, an extra 1/2 quart won't induce foaming, but a quart or more is pushing it.
From: Ray O on 15 Jul 2008 01:54 "Steve W." <csr684NOT(a)yahoo.com> wrote in message news:g5hcd3$lmc$1(a)aioe.org... > Built_Well wrote: >> Ray O wrote: >>> Some older Toyota engines (and current domestic engines) have >>> a single overhead cam, or SOHC. >> ======== >> >> Single overhead cam (SOHC)!!!! Well, I guess that's better >> than using pushrods and rollers. > > WHY? > Push rod engines have been around a LONG time. Toyota even agrees as they > built more than a few. (take a look under the Tundra V8s hood) > > -- > Steve W. The production Tundra's 4.7 and 5.7 liter V8's are both DOHC designs. The NASCAR Craftsman Series "Tundras" use pushrod engines ;-) AFAIK, Toyota does not sell any pushrod engines in North America any more. People have probably spent millions of hours debating the benefits of pushrods vs OHC engines, and IMHO, each style has benefits over the other in certain applications. -- Ray O (correct punctuation to reply)
From: larry moe 'n curly on 15 Jul 2008 04:53 Ed White wrote: > I was shocked when I found out my Nissan Frontier requires valve > adjustment. You have to love the chutzpa of the Nissan engineers. The engine > in my Frontier requires valve adjustment only when the valve noise is > objectionable. It is going to be damn loud before I'll spend hundreds (maybe > thousands) to have the valves adjusted. I assume the engineers at Nissan > (and Toyota) have designed the valve system so that the valve clearance > increases with wear - else you run the risk of burning valves if the > clearance goes too low (learned from sad experience on older engines). I have a 1998 with KA24DE engine. How can a valve adjustment with this type of engine be so expensive? Are they charging that much for the shim disks?
From: JoeSpareBedroom on 15 Jul 2008 07:00 "Built_Well" <Built_Well_Toyota(a)hotmail.com> wrote in message news:97101848-da38-42b3-88d7-6dcb0def23b9(a)s50g2000hsb.googlegroups.com... > > Gonna write this stuff down and post it so I don't lose it. Of course, you could've just written it down in a text document and saved it rather than posted it, assuming the actual purpose was to not lose it.
From: C. E. White on 15 Jul 2008 07:35
"larry moe 'n curly" <larrymoencurly(a)my-deja.com> wrote in message news:a197d3c0-d203-4aee-b23a-aaf08ef2c08a(a)56g2000hsm.googlegroups.com... > > > Ed White wrote: > >> I was shocked when I found out my Nissan Frontier requires valve >> adjustment. You have to love the chutzpa of the Nissan engineers. >> The engine >> in my Frontier requires valve adjustment only when the valve noise >> is >> objectionable. It is going to be damn loud before I'll spend >> hundreds (maybe >> thousands) to have the valves adjusted. I assume the engineers at >> Nissan >> (and Toyota) have designed the valve system so that the valve >> clearance >> increases with wear - else you run the risk of burning valves if >> the >> clearance goes too low (learned from sad experience on older >> engines). > > I have a 1998 with KA24DE engine. How can a valve adjustment with > this type of engine be so expensive? Are they charging that much > for > the shim disks? I have the V6 in my Frontier. To replace the shims you have to remove the cams - 4 of them. Hopefully I'll never need to have it done. I guess things are much better now. Years ago I had a Jensen-Healey with a DOHC 4 cylinder engine. Adjusting the valves was a nightmare - but still easier than for the Frontier V-6. Ed |