Today was a full day, but not a whole lot seems to have been accomplished. Part of this was the new Web Stage 2 cam, I think this might be the first one ever installed and written up so I did all the qualification checks Web specified to "qualify" the cam.
Web Cam has a whole sheet of "owner responsible" clearance checks and function checks that basically say "We made what you said you wanted, but we take no responsibility for it causing your springs to go solid & break, or your valves to hit each other inside the combustion chamber or for your screw adjustments to whack the inside of your covers, etc. etc."
At least they take the effort to list ALL the ways a high lift cam can mess you up and then suggest ways for you to check it all out before turning the engine on.
So, I put the cam in, assembled the engine top end completely (with valve clearances set) with run in lubricant but without any gasket sealer, rotated it through and did all the Web specified clearance checks, tore it back down, cleaned it up, gasket sealed it, put it back together (with assembly lube) torqued it and called it a night while the gasket sealer sets up good.
This was my check pics for the new cam as installed -- making sure all the orientations were the same and all alignments came out correctly.
Putting the cam in is the same juggling act as Step 3 in the cam disassembly from yesterday except in reverse.
It is easy to mis-index the sprocket by 1 tooth, but then the horizontal lines are off and that clues you which way to step the chain on the sprocket to fix it. Do take the time to go through a few 4 cycle checks and hit top dead center several times, index it good and check everything out good.
IF THAT CAM ISN'T RIGHT YOU WILL DO A FULL TEAR DOWN TO FIX IT -- be anal and do it several times to be sure.
Also, I put locktite on the two bolts that are retained by the bent half moon thingie -- belt and suspenders for a part that one list member had fail due to possible under torque condition. The spec'd torque is only a mild 10-11.5 foot pounds, so some locktite is good insurance that the fasteners won't vibrate free at some later date.
Ever seen a brass feeler gage before? That .010" thick gage goes inside your valve spring sets to check to see if they are going solid under the new cam's higher lift.
You bend it up into a snake so you can get it inside the raised spring, then you cycle it down with the cam into full compression and see if you can pull it out. If you did go solid you wouldn't be able to pull it out and the soft brass would take a crush impression from the spring coils pinching it.
To the best of my ability, we don't seem to have a coil binding issue with this new cam. It doesn't smack the valves against the piston top, wang them against each other in cycling, nor does it beat up the covers. I will report any durability issues that arise over time, but right now I think the engine is good to go for break in.
Here is the cover with assembly lube on the pads and everything clean and ready to apply the gasket maker to it. Assembly lube comes in two basic types, with moly and graohite and without.
Your clutch prefers assembly lube without moly and graphite as it gets in the oil system and winds up in the clutch where it can result in slippage.
A simple lithium based wheel grease out of your pump grease gun would actually do the job (which is to support friction free running until the oil pump moves oil up there through the empty passages).
Here is the head with the second installation of run in lube all ready to apply the gasket maker to it.
You set everything out and easy to hand, INCLUDING THE TWO SCREWS (L65 and L70) THAT HAVE TO BE IN PLACE WHEN THE HEAD COVER GOES BACK ON.
Then you clean your hands take a deep breath.
15 minute clock starts now., or
And then you goop the cover (including the large end seal recess since we are reusing the old end seal) set the curvy "O" ring in place in the recess with a little gasket maker on the edges -- then you goop the head surfaces, goop the end seal recess, pick up the end seal and lightly goop the outer surface and then put it in place in the head recess.
Stop and clean your hands again, quickly.
Then put the two fasteners (L65 and L70) in place in the head and then tilt the head up and install it from the left side of the motor while not letting your gooped surfaces touch anything.
Remember that the L65 bolt head goes down a level inside the cylinder fins (it has a mounting slot that you see on top) and watch out for the little formed "O" ring around the hollow locator dowel getting out of its recess. Settle the head cover down over the guts and begin dropping in the bolts.
Turn all the bolts to touch when you put them in then do the first pull up at 60 inch pounds following the order of the pull up chart listed below (you have a printed copy of it, right?).
FROM THIS POINT ON BE VERY CAREFUL NOT TO MOVE THE CLUTCH BASKET, THE ALTERNATOR NUT OR THE CAM OR THE ENGINE IN ANY FASHION.
YOU DO NOT WANT TO SMEAR SOFT SEALER ACROSS THE BEARING JOURNALS Then go for 80 inch pounds on the next round, then up it to 100 inch pounds for the third round. Give it 15 minutes and go around again and you will find some of the longer fasteners pull up more and the one in the middle pulls up quite a bit more (you got oozing going on).
Give it another 15 minutes and go around again -- not much should move this time. Give it 30 minutes and go around again -- nothing should move except maybe the center and 1-2 of the longer fasteners.
Go again in an hour and nothing should move -- you are done for tonight.
The cover needs 24 hours to fully cure before rotating the cam as YOU DO NOT WANT TO SMEAR SOFT SEALER ACROSS THE BEARING JOURNALS -- you want it to set up totally solid so it breaks free leaving just a little lump of gelled gasket maker in the journal to cam clearance which then slowly gets worn away as the cam oscillates around in the clearance in the oil film while running.
Your assembly lube will make sure the goo lump won't stick to the cam steel after it sets up good, but you have to take care not to move anything while the gasket maker is wet and gooey or you could smear it across the shaft and the journals and get some goo contaminated aluminum journals which would then pick up wear trash and could then lead to journal galling and failure.
Put a cover over it and put it to bed for the night. You can break it free in the morning.
Go eat dinner, watch a show with your wife and then go upstairs to your mini lathe and knock out a new clutch push rod that is 1mm longer than the stock push rod -- and while you are there, shorten the stock rod by 1mm just so you can finally answer the question "which way does it go" for once and for all.
(I still reserve the right to not know and to be wrong occasionally -- keeps me human
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