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Twiggy - Long Rod Aluminum Block Engine Build-up
https://mail.slantsix.org/forum/viewtopic.php?t=23948		 Page 21 of 25
Author:  Shaker223 [ Sun May 18, 2008 12:04 pm ]
Post subject: 
Any updates? Its been a while.
Author:  Doc [ Mon May 19, 2008 9:31 am ]
Post subject: 
Quote:
Any updates? Its been a while.
This engine is assembled except for the intake & exhaust manifolds.
I have it sitting on a cart, waiting for "it's turn" at one of my cars.
The problem I have, all my current "drivers" are running well... I am in a "if it's not broken, don't fix it" mode at the moment.

The truth is, I am deep into bodywork with my two teens... on two different cars. We spent most of this weekend pulling dents, welding-up trim holes , treating rust and working bondo.

Twiggy's install day will come, most likely right after the Medford / Redding races in a couple of weeks.
DD
Author:  Doctor Dodge [ Mon Aug 18, 2008 9:40 pm ]
Post subject:  Installation Day
The engine in my Dacuda is just not "happy" these days, it's running hot and when I check the water level, the radiator is full of brown goop.
I have known that engine oil has been getting into the cooling system for a while now... but the engine keeps running and I keep adding oil.

Enough! It's Twiggy's turn... in it goes.
The only change in plan is to re-use the aluminum 1 bbl intake manifold and factory exhaust manifold currently on the Dacuda, they are "known quantities". Intake / exhaust improvements will wait until later.

So here are some photos of the engine going into the car:

Image

Image

No big issues getting the new engine installed but I have work on my hands as far as trying to get the cooling system clean... what a mess, looks like more oil then water came out of the radiator. All the hoses will have to be replaced and the radiator will need a good flushing to get all the goop out.

Time to get all the other hook-up done and to start this engine.
DD
Author:  Dart270 [ Tue Aug 19, 2008 6:01 am ]
Post subject: 
VERY pretty. Can't wait to hear how it runs.

Lou
Author:  sandy in BC [ Tue Aug 19, 2008 6:56 am ]
Post subject: 
Shiny!

Mebbe you need a nice new Aluminum rad to complete the look.....
Author:  ValiantOne [ Tue Aug 19, 2008 9:09 am ]
Post subject: 
Doc that single pot master cyl looks like it has been in there a while! :shock:

Any plans for a dual pot upgrade?

CE
Author:  Doc [ Tue Aug 19, 2008 9:43 am ]
Post subject: 
The single pot master cylinder works OK for now... if it gives me any trouble, it will be changed to the dual system.

I like the suggestion to swap in an aluminum radiator... I may have to do that because I may never get all the oily goop out of the current radiator.
:cry:
DD
Author:  SlantSixDan [ Tue Aug 19, 2008 10:02 am ]
Post subject: 
One of these! :cool:

(And a 'luminum master cylinder, and a 'luminum 8¾" centre chunk, and 'luminum wheels, and the special race-only Direct Connection 'luminum glovebox door, if you can still find one... :lol: )
Author:  AnotherSix [ Tue Aug 19, 2008 12:15 pm ]
Post subject: 
You forgot the luminum drive shaft.
Author:  gmader [ Tue Aug 19, 2008 12:24 pm ]
Post subject: 
not too late for an AL flywheel.... (But you are already using a TF 904, I am sure).
http://www.slantsix.org/forum/viewtopic.php?t=30517
Author:  Doc [ Tue Aug 19, 2008 12:59 pm ]
Post subject: 
Yes, the D'Cuda is running a 904 so no Alm. flywheel needed there.

On that note, I came across a aluminum SL6 flywheel years ago, 122 tooth, SL6 bolt pattern and it has the bronze facing... I think I paid $80.00 for it. :shock:
Too bad it has the small crank pilot hole in it but even that is not a big deal.
Someday I will find a manual shift car to use it in but it will not be the Dacuda

As for the engine installation, I hit a snag with that prototype aluminum head, it does not have the upper bolt boss and tapped hole to mount the alternator's "slider" bracket. :oops: Back when this head was made, the A-Body cars had a generator mounted on the driver's side.

Well... I had to spend some time making brackets and some wiring extensions to get the alternator moved to the driver's side of the engine bay but that's done. The good news, I can get rid of that 2 pound "chunk of cast iron", alternator mounting base bracketry that is used for right side mounting.
Oh, the coil's mounting bracket also needed a little reworking to allow it to bolt directly to the old bracket's mounting holes.

If I get the cooling system installed, it should be ready to fire-up tonight.
DD
Author:  steponmebbbboom [ Tue Aug 19, 2008 3:51 pm ]
Post subject: 
doug, there is no reason a radiator shop wouldnt be able to boil-out all traces of engine oil from your radiator. i have had it done on several occasions for clients of mine.
Author:  ValiantOne [ Tue Aug 19, 2008 5:45 pm ]
Post subject: 
Cool :D

I want to see/hear some video of the baby running!!! :D :D :D

CE
Author:  MiDi [ Tue Aug 19, 2008 11:14 pm ]
Post subject: 
that is one sexy look'n engine! nice job!
Author:  Doc [ Wed Aug 20, 2008 1:42 pm ]
Post subject:  It Runs ! ! !
We have lift-off...
Twiggy fired right up and gets 55 psi of oil pressure, so far, so good.
The idle was real choppy at a .016 In - .021 Ex initial lash settings and we are getting a bunch of oil up at the rocker arms, thanks to a small groove in the rear cam journal. Not a full groove just 1/2, connecting the two oil feed holes along one side of the journal.

Loosened the lash to .020 In - .023 Ex and the idle quality improved a lot.
(Erson RDP cam 260 In and the Mopar 244 Ex lobe) Any looser and it starts to "clatter". Got the valve cover on and cleaned-up the mess.

Looks like there is a small oil leak coming from the fuel pump mounting gasket, we will have to come back to that later. Everything else looks fine.

A short test drive has the engine running well, showing good power and throttle response. We ran out of daylight so the final "tune" will have to wait until tonight... but we also need to do a gear ratio swap (3.23 to 2.94) if we are going make the "trek" to Medford... but it is looking like a "go".
I will try to post some photos later tonight.
DD
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