Originally Posted By: OVERKILL
Originally Posted By: BlueOvalFitter
Originally Posted By: OVERKILL
Originally Posted By: BlueOvalFitter
Was I correct when I stated they spec 5W20 for the upper camshafts-AKA-getting the thinner 20 wt. oil up there quicker at operating temps. VS the 30 wt.? Are there cam phasers/VCT in this engine that require to use a 5W20 oil ONLY?
No.
The same engine specs 5w-50 in the Track Pack version. 5w-20 isn't getting there any faster and what are "upper" camshafts? The engine has camshafts, they are all on the tops of the heads, there are no "upper" ones.
Well, the engines I used to build, rebuild, buy, never had a camshaft on the upper part of the engine, AKA-UPPER CAMSHAFT. If the camshaft had been in a typical conventional V engine, I just call it "THE CAMSHAFT." So, it seems this engine has UPPER CAMSHAFTS-AKA-AT THE TOP OF THE ENGINE. Maybe you're younger than me and have never worked/rebuilt an older conventional V engine. I don't know. But, does it bother you that I stated UPPER CAMSHAFTS?
It's redundant because the camshafts are only in the heads, there is no other camshaft location to require a differentiator between upper and lower. If it had other camshafts in the block or something then the term makes sense, but it doesn't, so it doesn't, follow?
I've built and worked on plenty of pushrod engines, 1920's, 30's and 40's stuff, my grandfather was an antique boat nut, so there was always something to keep you busy. I've also built a number of SBF's, pretty much all 302's, and had my hand in a few SBC builds as well. I'm quite familiar with cam-in-block engines of the OHV and flathead varieties.
I AM probably younger than you, but that doesn't mean you can't learn to use the proper terminology
A pushrod, be it OHV or flathead engine will have one camshaft, whilst a DOHC or vee'd SOHC mill will have camshafts (plural) and they will be in the heads. Ergo, when in a discussion about a specific engine that we all know is overhead cam, there's no need to make reference to an "upper" camshaft or camshafts, as all of the cams are on the heads, there are no others, so it is just the camshaft or camshafts, period.
Oh, and comically, the 6.4L in my signature is a "conventional V engine". It is cam-in-block and has pushrods.
Anyway, the UPPER CAMSHAFTS do have UPPER CAM SYNCHRONIZERS, correct?
BTW, a conventional V engine (like a small block Chevy) DOESN'T have a camshaft ON its head.