[DeTomaso] Oil Restrictors Question

Will Kooiman will.kooiman at gmail.com
Thu Apr 12 09:44:48 EDT 2012 

You take a tap and cut the end off so that it can fit from the camshaft
bearing side.

You grind 4 "flats" in the tap so that you can turn it with a 1/4" wrench.

Cast iron taps pretty easily.

I considered using a long tap, but I was afraid I would break it off.
That's a long way to tap.

You have to press out the cam bearing and either press it back in, or press
a new one back in, but this is a chance to install the cam bearing as far
forward as possible, anyway.  Cam bearings are pretty cheap, so it isn't a
big deal not using the other 4 bearings.

You can also install a plug in the crank side.  The oil enters between the
restrictor and the plug, but there's another hole - the large one - that
oils the #1 main.  You don't need 2 large holes.

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Justin Greisberg
Sent: Thursday, April 12, 2012 6:16 AM
To: sean mundy
Cc: <detomaso at realbig.com>; <kenn_green at yahoo.com>
Subject: Re: [DeTomaso] Oil Restrictors Question

Search the network54 forum. I forget and don't have my notes but there is a
trick there. 

On Apr 11, 2012, at 8:04 PM, sean mundy <seanmundy at hotmail.com> wrote:

> Why do you have to tap the hole so far down between the crank and cam
bearing?  Does the restrictor have to be in the middle of the two?
>  
> From: justingreisberg at hotmail.com
> To: seanmundy at hotmail.com; will.kooiman at gmail.com; kenn_green at yahoo.com;
detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> Date: Wed, 11 Apr 2012 15:43:45 -0700
> 
> if he means the external line running from the oil passage above the oil
filter to the back of the block, then the modern consensus is to skip that
> 
> yes, I am pretty sure I did the restrictors on the 2-5 mains.
> 
> tappig the passage between crank and cam bearing was quite a project -
hard to find the right length tap.  And then my made-in-china tap snapped in
half and got stuck in the block!!!  Made for an interesting night.  I got a
special tool that is like a reverse drill that spun into the center of the
tap and backed it out
> 
> From: seanmundy at hotmail.com
> To: will.kooiman at gmail.com; kenn_green at yahoo.com; detomaso at realbig.com;
justingreisberg at hotmail.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> Date: Wed, 11 Apr 2012 15:06:26 -0700
> 
> This is starting to make some sense now.  Moroso kit on the 2-5 mains only
and fit a restrictor in the crank/cam bearing oil passage. 
> I also gleaned some of that from the network54 forum.  To confuse the
matter some more though,
> another option the engine builder mentioned was a crossover modification.

> I pretended I knew what he was talking about 
> From: will.kooiman at gmail.com
> To: seanmundy at hotmail.com; kenn_green at yahoo.com; detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> Date: Wed, 11 Apr 2012 16:39:46 -0500
> 
> In that case, I'd just do the pan.
> 
>  
> 
> If you want to step it up, do the Moroso restrictors on 2-5 mains, but
don't do the big restrictor to the lifters.  It is supposed to be for solid
lifter engines only.
> 
>  
> 
> You'll be fine.
> 
>  
> 
> My car was 100% stock, aside from the intake/carb/distributor/headers.
Okay, it was mostly stock.  Oiling-wise, it was 100% stock.
> 
>  
> 
> It didn't explode, but I could watch the oil pressure drop on long
sweeping turns.  After I installed a large baffled pan, the pressure was
rock solid.  I like mods where you see the improvement right away.  With the
new pan, it was a night/day improvement.
> 
>  
> 
> I beat on my car too.
> 
>  
> 
> More important than oiling mods is replacing the crappy timing chain. The
plastic falls off the cam gear and plugs things that aren't supposed to be
plugged.  A metal non-roller non-plastic-coated timing chain set is $29.  A
full roller is about $150, I think.  It has been a while since I've looked.
Regardless, they are too cheap to skip.
> 
>  
> 
> From: sean mundy [mailto:seanmundy at hotmail.com] 
> Sent: Wednesday, April 11, 2012 4:09 PM
> To: will.kooiman at gmail.com; kenn_green at yahoo.com; detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> 
>  
> 
> I don't plan on seeing a whole lot of any track time.  
> I bought my Armando pan mainly because of 
> 
> 
> reading this forum and the oiling issues with the Cleveland. 
> 
> This next engine will be a VERY large investment for me and 
> I don't want to screw it up!
> 
> 
> From: will.kooiman at gmail.com
> To: seanmundy at hotmail.com; kenn_green at yahoo.com; detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> Date: Wed, 11 Apr 2012 15:54:16 -0500
> 
> 
> Just remember that most of the network54 guys are drag racers.  They beat
their cars pretty hard.
> 
>  
> 
> You could argue that we beat ours harder on the track, since we're on the
gas for longer periods, plus we combine high rpms with cornering.
> 
>  
> 
> But that's assuming you beat yours on the track.  If you are mostly on the
street, a proper pan should be plenty.
> 
>  
> 
> From: sean mundy [mailto:seanmundy at hotmail.com] 
> Sent: Wednesday, April 11, 2012 3:37 PM
> To: will.kooiman at gmail.com; kenn_green at yahoo.com; detomaso at realbig.com
> Subject: RE: [DeTomaso] Oil Restrictors Question
> 
>  
> 
> Will, I have the baffled oil pan already so thats one requirement down.  
> I read your posts on network54.  Lots of information there!
> Most concerns I read there seems to revolve around restricting oil to
hydro lifters but my 
> mind started to melt after trying to get past that item.
>  
> 
> > From: will.kooiman at gmail.com
> > To: kenn_green at yahoo.com; seanmundy at hotmail.com; detomaso at realbig.com
> > Subject: RE: [DeTomaso] Oil Restrictors Question
> > Date: Wed, 11 Apr 2012 14:57:50 -0500
> > 
> > You have to decide who you want to trust. That's the problem. We can't
> > tell you.
> > 
> > 1. If you have a roller cam, you need to make sure the oil port doesn't
> > come out of the lifter bore. Otherwise, you'll have a loss of oil
pressure
> > at full lift.
> > 
> > 2. I like the Moroso restrictors, but I don't think they are mandatory.
> > 
> > 3. A proper baffled pan is a requirement.
> > 
> > 4. I like the front to back oiling line, but I don't consider it
mandatory.
> > 
> > 5. I did a mod described on the network54 forum where you put a
restrictor
> > in the #1 cam journal by tapping from the cam down. You put a plug in
the
> > crank journal side. I can't describe it here. There's a picture that
helps
> > a lot. This mod is not required.
> > 
> > 6. Install the cam bearing as far forward as possible. Installing it far
> > forward keeps it from leaking a lot of pressure onto the cam gear. This
mod
> > is not required.
> > 
> > 7. There is a mod where you drill a hole in a plug to provide a steady
> > stream of oil onto the distributor gear. I did not do this mod, but I
think
> > it is a good one.
> > 
> > 8. Some people use grooved bearings for top and bottom on the crank or
> > something like that. It is supposed to help.
> > 
> > 9. Some bush the lifter bores. This is probably worthwhile, especially
if
> > you have a roller cam. I don't consider it mandatory, though.
> > 
> > So, the only mod that is really required is a proper baffled pan - in my
> > opinion.
> > 
> > -----Original Message-----
> > From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
On
> > Behalf Of Ken Green
> > Sent: Wednesday, April 11, 2012 2:48 PM
> > To: sean mundy; detomaso at realbig.com
> > Subject: Re: [DeTomaso] Oil Restrictors Question
> > 
> > As a more direct approach, if someone has a Cleveland with the pan off,
just
> > measure the distance from where the tube enters the block to the lowest
> > point of the crank throws and compare that to the corresponding
dimension of
> > the dip stick and tube?
> >  
> > Ken
> > 
> > From: sean mundy <seanmundy at hotmail.com>
> > To: detomaso at realbig.com 
> > Sent: Wednesday, April 11, 2012 12:30 PM
> > Subject: [DeTomaso] Oil Restrictors Question
> > 
> > 
> > This has got to be the most confusing topic I've run into in my quest to
> > build a 408c.  
> > After spending many hours on various forums I am totally befuddled by
the
> > massive amounts of conflicting and differing recommendations.  
> > I could blow up the engine with them, or without them.  At this point I
wish
> > I had never heard about oil restrictors!!!! 
> > The plan for my 408 was to use roller cam/lifters/rockers.  
> > I'm sure many of you have run into the same dilemma.
> > Whom do you trust or believe?
> > Thanks, Sean                         
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