Re: Wayne's Holley 470 Truck Avenger
More positive progress on wayne's non-oiler motor!
He got it all buttoned up last week after verifying that the oil pump and pump "float" (IH terminology) was the correct stuff for a Scout II app with a double hump oil pan. So we discarded that theory after eyeballlin' the setup.
The only thing that might have impacted the "air sukkin" (non-oiling) situation May have been an "o" ring on the pickup not seating correctly.
Once it was back together and oil tossed back in, tha bitch started oilin' again when the motor was runnin'. Not exactly a heavy flooding like I expect to see, but certainly in a quantity to lubricate the valve train in the appropriate manner. And now the lifter galleries are flooding properly also, that was not happening prior to removing the pan for a looksee.
I do know from past experience that there are two different "float" assemblies that were used in double hump sii pans, one is exactly an inch "deeper" than the other. But I can't find my pics of the comparison I did several years ago. This would definitely be affected by the quantity of oil in the pan also. This anomaly is not addressed in researching the parts lists, but then, there are many areas that are not definable through the use of the IH-produced parts lists, changes were addressed through the use of bulletins, without those bulletins, many areas are gonna remain an unknown until someone can come up with a complete set of bulletins issued over the years.
The "short" float/pickup May have been used with the double hump pan that did not have a drain plug in the front, shallow sump. But this is just a guess on my part since I don't have any firsthand info regarding that.
Also, there is much contradiction regarding dip sticks, dip stick tubes, etc. Spread over all the variations of the sv motors as used in the multiple platforms. Part number mismatch cannot be verified through the use of the parts lists since the illustrations are not even close to accurate for application, and the part number info is ambiguous also. Combine that with the "change" that occurred in actual oil volume used in the sii motors due to the high rpm "starvation" issue, and it's no wonder that we have such a hard time figgerin' out what's what!
Wayne's motor now "sounds" outstanding (with absolutely no change in carburetion), and because he's shimmed the oil pump relief valve, the oil pressure is kinda "abnormal" and doesn't really react in the normal fashion as the engine and oil reaches full temp. There are other ways of dealing with this issue and we might get into that in the future, but for now I'm pronouncing the motor healthy and drivable.
We're gonna leave the carb and ignition system alone for now until we can do an extensive road test session and performance check. That needs to be done in my shop using the engine analyzer.
Wayne has the entire floor pf the rig now removed for replacement, it's a bit drafty in there! So it's not drivable as such. But he's done a tremendous amount of work on the sheetmetal over the last month and I bet we'll be driving in some fashion soon! Once the forward portion of the floor is in place, he can throw the seat back in and we can drive it. For now, he'll keep running the motor in the shop periodically, though it's now a few years old, it's certainly not broken in yet! Only has about 100 miles or less since all the shit hit the fan! The cutaway valve cover will remain on the motor so that lube action can continue to be observed.
So turns out the "carb" issue that the engine builder blamed all the problems on, dam shore ain't got nuthin' to do with what has transpired! And we now know who not to have work on IH motor builds in our local market!
Once we get to the carb dial-in phase, we'll start another thread to reflect that. This thread will be moved to the "engine" forum now!
This has been a great learning experience (though costly!!!) for wayne, and I've dam shore lernt more stuff myself! And we've worked side-by-side in improving and verifying our engine lubrication system diagnostics! Wayne's a great dude to work with, too bad we didn't hook up years ago! Thanks to Jeff and Mike fiock for gettin' us together!
