[DeTomaso] Oil Restrictors Question

Asa Jay Laughton asajay at asajay.com
Wed Apr 11 19:16:33 EDT 2012


Why is the modern consensus to skip the external oil line?
Just wondering.

Asa Jay

Quoting Justin Greisberg <justingreisberg at hotmail.com>:

>
> 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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-- 
Asa Jay Laughton - sent from somewhere other than home
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