Blown 7's ultra secret timing cover/oil pump

jeepsr4ever

Yes fixturing is done after Jeff's prototype. The prototype wasnt perfect and needed a sleeve here and there but the overall aspect of the piece is astounding.

Blown7

The happiest day of that last year happened today, my main man MC delivered!

Here's some pics

I'm going to drill and tap a 1/4 NPT to have an oil drainback to the sump

I'm going to have to mill off this boss as I need all the space I can get to adjust the alternator

I'm going to drill thru and use a double nut to be able to use my alternator and A/C brackets

Musta been one of those mornings after the night before, I wonder what this hole was supposed to line up with LOL

Blown7

All an All this piece was worth waiting a year for, excellent job my friend. Good chattin with ya today. Jeff

Mudrat

WOOOO HOOOO!!! Times wasting Jeff - when you going to run it?? :shock: :mrgreen: Don't forget the videos! :t:

Blown7

BTW MC if you send the pump back tomorrow throw a new Cam and dizzy gear in the box. Thanks ' J

Blown7

Ok so I got a little work done, I decided on 2 inch diameter number 25 chain sprockets I couldn't find a supplier that sells double sprockets for 25 chain so I had to make my own.
I got the camshaft side done and the sprocket made for the Moroso Oil Pump.

Notice the fuel pump eccentric is gone foreever as the engine runs the big Aeromotive fuel pump. I had to face off the back of both the camshaft sprocket and the crank sprocket as I needed every thousandth of an inch to get everything to package correctly. At present the timing chain has 15 thousandths clearance between itself and the block.

Mudrat

I need a job like yours that lets me do stuff like this!!! but I'd definately change the dizzy gear :wink:

Blown7

Mudrat wrote
I need a job like yours that lets me do stuff like this!!!

but I'd definately change the dizzy gear :wink:

I was looking at those in the Bulltear store 96 Dollars!!!!

Wow MC must be real proud of them LOL

I guess it's been a while since I visited the estore.

Gotta get them ordered.

Jeff

Blown7

I just ordered an new set of cam gears MC, they better be Tungston coated for 103 dollars LOL. Make sure you check your order line MC!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Jeff

jeepsr4ever

LOL sorry I didnt check your post before the pump went out!

Blown7

So more pics as promised MC!

This is how the end of the Moroso pump will mount, I used two of the thru bolts and 3 of the screw plate holes.
(Sorry for he blurry pic

Backside pic

Drive sprockets and chain

What this whole system was designed to do
(The sprockets and chain are NOT at the final set, they will go back another inch on the cam and oil pump shaft)

And lastly the -12 (3/4") feed line to the block at the oil pressure port

jeepsr4ever

I just love this picture :?

ironman_gq

That engine is "packing'' some major equipment!!! :sign12: gonna have to keep it away from the ladies :razz:

Goose

Holy Snikeys Batman!! Thats as diabolical looking as anything I have seen !!

tufcj

Is there going to be any sort of an idler or tensioner on the oil pump chain? I can see a lot of slop with just a little wear on a chain that long. It does look wicked though. Can't wait to see it buttoned up to see the outside of that cover. :t: Bob tufcj

Blown7

tufcj wrote
Is there going to be any sort of an idler or tensioner on the oil pump chain? I can see a lot of slop with just a little wear on a chain that long.

It does look wicked though. Can't wait to see it buttoned up to see the outside of that cover. :t:

Bob
tufcj

Now that's one thing I've been thinking about for a year, to tension, or not to tension??????

To be honest I'm still not sure.

I've thought of a Nylon rub/tension strip, or a idler sprocket spring tensioned.

At this point anyone have an opinion???

Jeff

ironman_gq

keep it simple like all the ATV guys have done for years and use a rub type tensioner. No bearings or wheels to wear out.

tufcj

I'd opt for a rub type nylon too. Toyota used a hydraulic (worked by the engines oil pressure) rub type nylon on the 20R and 22R engines, and those things ran forever, even with serious abuse. Bob tufcj

Goose

Will there be enough splash lubrication in that area for a sprocket type tensioner?? The rub style as the guys have pointed out have worked for years, But on a chain that long there will surely be some lateral whipping at speed.. and a sprocket would control that. It would take a very long chain run and break it into three shorter runs..

Lifted79CJ7

OK, I have no idea how I missed this update, but daddy likes! Keep tha' pictures coming! :lo1l:

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