I want to show you the not unusual things you will find in a 455 motor that runs well even. Partially because of our motor backlog but more than that….let me go into what we are doing with Marco’s motor.
There will be some verbiage today but I think it may be interesting to some so belt in, set the ejection seat to hot…..kick the tires and light the fires here we go.
So the question, should I rebuild my motor? Is that like asking your insurance agent how much is too much insurance?….Right? So while I would say in 90% of the 40 year old motor evaluation comes out that it’s a good core because it hasn’t blown up and had trauma yet! Ah, but that means there’s a 10 % chance it doesn’t need all the wax and the bag….right?
It’s very difficult to measure that point at when …..well lets just do it………it’s safer that way for sure. But what about those few that understand some dynamics of it and are willing to believe the numbers and good faith work………..we’re doing something here you would ONLY do If you had a very good feeling on a motor and it’s owner was willing to give it a shot.
See that’s the real thing……if one understand something can occurs at any time…..to anyone……… So you investigate…..this motor has like new compression …….. The history is it had been lovingly maintained to OEM spec by an educated individual for decades…….the timing chain had been replaced with a double roller model and other than seemingly leaking oil from every gasket it possessed……Heck even with the original point distributed the dang thing is a runner!
In this situation my first thing would be to rub my hands together like Dr. Frankenstein and loath after our next patient…….but wait Marco says……. I still believe in the integrity of this motor….I want to do a cleanup like in the old days when everyone felt a motor could be “freshener up” and keep running the beast if everything checks out good. Hey, you remember those dayz! I did it to a 302 Bronco……the thing pulled stumps ! And then what about having “just a rear main seal leak”. These are reasons to try and maybe take that chance and find that fine line…..but ONLY if you understand and it may not even be for economy. This is a really early 73 model…..you know, with no rain gutters and just maybe the bond between steward and animal is such that a risk may be worth it.
Hey, worked hard to assemble parts to do one of these builds for my 392 Hemi I sold in 1983. Anyway this is what we’re doing here Looks like we have a leak in the left side air system too but the drive train was removed any crypy….if that’s a word…..what a greasy mess! I picture a steamer been out to sea for decades……grease covered but still just turning that screw. it had been cared for with getting headers. The notoriozusly week timing chains with a double roller one…like a rebuilt motor would getas expected the thin wall between the big secondary ports on the intake was cracked .and if you’ve never checked …brother you’re showing crack too! Cam and lifters are wearing nicely ..and the valves were all sitting up nice with good color….wear on the rockers were minimal.then flipping it over on the stand. mains and rod bearings were within tolerance.We’re putting in a high volume oil pump complete with the drag race product Milidon deep sump bolt on hi volume gold zinc anodized oil pump pickup tubeOh and his new HEI distributer……but Marco, brother we have the expertise got this motor that transmission greaseball is something else..the diff. Looks like it’s never come off and the blue paint on the torque converter stub looks original. She’s got a Rafusa pan so this baby too has probably been cared for well but in this case I have to say lets take the tranny to Monsteri mean just like I’d never attempt machine work myself, telly comprehensive transmission work needs a specialist. Look these guys up on Monster transmission.com Marco, to be prepared for this fresh motor we need something fresh behind it. Give me a call and ill let you know our directions…….
I have so much more but the day is on. Come back tomorrow for more…….