Cheap Junk 1971 Build

[oprn]

When I opened my gasket set for this engine the plastic vibration dampeners that go on the main bearing bolts were not supplied. A couple of enquiries on another site led me to a supplier of these little plastic bits... at $7+ each! So $7 x 6 + shipping + exchange on the US dollar and we are up to over $60! For 6 little plastic sleeves!! Hmmm... Gotta be another way...

Here is what I came up with. $7 for a hundred!

rubbers a.jpg

Fit nicely!

rubbers 1a.jpg

In fact if you poke them a bit they will slide right inside the holes so I am thinking for the price I will slide one in each half and leave one in the center on each bolt.

rubbers 2a.jpg

[oprn]

Sorry, that should read $60 for the plastic bits! Not sure how to edit on this site.

Never mind! I found it!

[Piledriver]

Impressed by the great ingenuity, but for some reason while looking at the pictures I kept thinking "OwOwOwOw..."

Each post you make has 4 icons in the upper right... Left one sorta looks like a pencil... That's edit.

[oprn]

Ha Ha! Ya! Got any daughters of dating age? I have some left over...

[Piledriver]

At least it beats the traditional way of castrating sheep...
Still done that way in some parts of the old world. think

[Clatter]

OwOwOwOwOw...!!!

Look what my thread has come to..



Never really sure the whole deal with the 'vibration dampener' thing...

Did the case thru-bolts really need dampening?

I'm still betting they were an ease of assembly thing..

I mean, what are the actual symptoms/suffering these fixed?

Can't be nearly as bad as for calves under 250 pounds..

[oprn]

Ooops! Sorry Clatter!

I didn't mean to turn your good thread into a lesson on how to discourage would be suitors of your daughters!
(It may take some 'splainin' to city kids but out here in cattle country a pre-date initiation threat with the plyers and rubber rings changes minds real quick!)

Back on topic, the replies I got on another forum indicated there was a need to stop any harmonic effects with those bolts. I really don't know so I erred on the side of caution.

In any event it will eliminate any potential lost sleep.

With the bolts too!!

[oprn]

Just to give you an idea of the potential for trouble I could be facing without those handy little latex rings...

[theKbStockpiler]

Are those A/C line O rings? The picture loaded late. Would fat O Rings have worked?

[oprn]

Are those A/C line O rings? The picture loaded late. Would fat O Rings have worked?

Nope. The first picture tells exactly what they are. Yes I believe fat O rings would work too.

[oprn]

Back on a serious note: Is it normal for the cam thrust bearing to be tight? I mean not just no clearance but... tight? Non sure whether to trim the cam thrust surface a bit or sand the bearing.

[Piledriver]

Sand the bearing, BUT--- Install the cam and bearings with the block snugged up around the cam at least, and give the cam a love tap forward/back first. (brass drift, doesn't take much to seat things)

THEN sand on 1000 grit wet or dry on a glass plate to low end of the spec.

[sideshow]

Don't sand the bearing! Don't cut the case, use a hammer instead with the cam plug and oil pump out.
Large brass drift is the tool of choice, not sandpaper.

[Piledriver]

Its usually not needed, but sometimes just "seating" it doesn't provide enough.

[oprn]

Finally seeing my way clear to get back to this engine build and now it's time to plant the potatoes! Maybe tonight I can give it a love tap and see if it looseness up a bit.