[Spridgets] Tubular pushrods - Re: Head Stud Torque Setting

[Larry Macy]

You have to do something about that mirror. It's blocking my view :-)

Nicely done. Certainly appears the 914 was either over his skill, or over his car. 

Larry

--

Larry B. Macy, Ph.D.

Use two fingers, it sends a better message - Peace

Sent from my Magical iPad

> On Nov 28, 2015, at 5:36 PM, Ron Soave via Spridgets <spridgets at autox.team.net> wrote:
> 
> http://youtu.be/MdHLqREbyLc
> 
> The end is exciting. 
> 
> Ron Soave
> 
>> On Nov 28, 2015, at 4:23 PM, Michael MacLean <rrengineer.mike at att.net> wrote:
>> 
>> 8000 rpm!  I'm guessing you have straps on your main caps and very good tri-metal bearings for the crank.  At that rpm my engine would probably come apart.  It does rev up to 6K quite readily as it has broken in though.
>> Mike MacLean 
>> 
>> 
>> 
>> On Saturday, November 28, 2015 12:09 PM, Ron Soave <soavero at yahoo.com> wrote:
>> 
>> 
>> Good call on the stock pushrods, Mike. Even with clearance-ing  of holes, there is no real reason to use tubular pushrods. I've had them bend just as readily as stock ones. I've had the same stock pushrods in my now 10+ year old race engine for seven years without any issues. The benefits of good oiling outweigh any marginal benefits the tubular ones offer. I assure you I am beating my motor harder than just about anyone on the list. Redline oil and proper clearances are key to extended life at 8000 RPM
>> 
>> Ron Soave
>> 
>>> On Nov 28, 2015, at 12:47 PM, Michael MacLean via Spridgets <spridgets at autox.team.net> wrote:
>>> 
>>> I will check the rocker bushings, but there is only a few thousand miles on the rocker assembly since the 1275 was built a few years ago.  They are high ratio (1.5) rockers, but I don't think there is that much wear on them yet.  The very first time I put oil in the engine, the oil would fill the valve cover before it would eventually drain down in the block.  When I built this engine I went kinda crazy trying to lighten the valve train and installed hollow pushrods. Besides, they don't flex or bend.  The problem is the holes that the pushrods pass through were enlarged, but apparently not large enough for oil to easily pass by.
>>> Mike MacLean
>>> 
>>> 
>>> 
>>> On Saturday, November 28, 2015 10:01 AM, Peter Caldwell <peter at nosimport.com> wrote:
>>> 
>>> 
>>> And while loose, you can wiggle the rockers to feel if maybe those bushings are worn, which can be another reason the head gets flooded with oil
>>> 
>>>> On 11/28/2015 11:53 AM, rrengineer.mike wrote:
>>> 
>>> "Palm to forehead",  why didn't I think of that?  Thanks Peter for saving me all that work. Besides, I would have to figure out how my new electronic works.
>>> Mike MacLean
>>> 
>>> 
>>> 
>>> Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone
>>> 
>>> 
>>> -------- Original message --------
>>> From: Peter Caldwell <peter at nosimport.com> 
>>> Date: 11/28/2015 9:38 AM (GMT-08:00) 
>>> To: "rrengineer.mike" <rrengineer.mike at att.net>, spridgets at autox.team.net 
>>> Subject: Re: [Spridgets] Head Stud Torque Setting 
>>> 
>>> In those desperate times at a race, you loosen adjusting nuts and slide the rocker to the side, unless you have solid spacers.
>>> 
>>>> On 11/28/2015 11:27 AM, rrengineer.mike wrote:
>>> 
>>> I am not pulling the head. I may be wrong, but I have to remove the head Stud nuts on the pedastals to lift the rocker assembly off the engine to replace the pushrods.  I'm thinking the other stud nuts have to be loosened also to re-torque the head properly. Is there another way to replace the pushrods without loosening all the head nuts in sequence?
>>> Mike MacLean
>>> 
>>> 
>>> 
>>> Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone
>>> 
>>> 
>>> -------- Original message --------
>>> From: Peter Caldwell via Spridgets <spridgets at autox.team.net> 
>>> Date: 11/28/2015 6:30 AM (GMT-08:00) 
>>> To: spridgets at autox.team.net 
>>> Subject: Re: [Spridgets] Head Stud Torque Setting 
>>> 
>>> Why pull the head at all?
>>> 
>>> 
>>> -- 
>>> Peter Caldwell
>>> World Wide Auto Parts of Madison WI
>>> 2517 Seiferth Rd
>>> Madison  WI  53716
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>>> www.nosimport.com
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>>> 
>>> ------------------------
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>>> 
>>> -- 
>>> Peter Caldwell
>>> World Wide Auto Parts of Madison WI
>>> 2517 Seiferth Rd
>>> Madison  WI  53716
>>> (608)223-9400
>>> www.nosimport.com
>>> http://stores.ebay.com/worldwideimportautoparts
>>> 
>>> -- 
>>> Peter Caldwell
>>> World Wide Auto Parts of Madison WI
>>> 2517 Seiferth Rd
>>> Madison  WI  53716
>>> (608)223-9400
>>> www.nosimport.com
>>> http://stores.ebay.com/worldwideimportautoparts
>>> 
>>> 
>>> ------------------------
>>> 
>>> spridgets at autox.team.net
>>> 
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> ------------------------
> 
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