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Author Topic:   Cam break in
Fastymz
Moderator

Posts: 20708
From: Reno Nv USA M&M#1240
Registered: Apr 2001

posted 03-16-2003 01:47 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
I know this topic as already been covered 1000 times.
I dont get it,some say run motor at,
1.1800rpm for 15 min
2.3000rpm for 30 min
3.2000rpm for 20 min
4.2500 rpm for 25 min
5.Any combo of above ?

So which one is most used, best to use, or the one you like the best.

I was hoping to do it this Wednesday.If I can get the exhaust done and it does not snow.

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SCOOP
oddly obsessed with big scoops on little Mustangs

2.26 60'S
14.9 @ 90.86MPH

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

https://mustangsandmore.com/ubb/Fastymz.html

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V8 Thumper
Gearhead

Posts: 4652
From: Phoenix, Arizona
Registered: Dec 2001

posted 03-16-2003 01:54 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
2000-2500 (keep it varied) for 30 minutes... an occasional run up to 3000 can't hurt. Do pre-lube up the top half of the motor... pour two quarts across each head or use an oil can to squirt oil into the rocker pivots, inside the springs to the valvestems, ect. How long has your car sat dormant? You might concider priming it prior to fire-up.

Following your break-in, do an oil and filter change, then feel the power

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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Glens67
Gearhead

Posts: 495
From: Middleton, ID
Registered: Mar 2002

posted 03-16-2003 02:13 PM     Click Here to See the Profile for Glens67   Click Here to Email Glens67     Edit/Delete Message   Reply w/Quote
RONNN
Set up an Oil Pressure gauge that you can watch in the engine compartment. Keep an eye on your temp gauge too. If you have a pressure plant sprayer (3 Gal type) keep it handy too, you can spray the radiator to help keep it cool. A soking wet hand towell too, throw it on the Carb if you back fire and have flames.

------------------
Glen
67 GT 390
65 Galaxie 500 XL 4 Speed
It was not a Red Light they gave me a Slow Tree
I WAS NOT LATE the Tree was Fast

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V8 Thumper
Gearhead

Posts: 4652
From: Phoenix, Arizona
Registered: Dec 2001

posted 03-16-2003 02:22 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Glens67:
A soking wet hand towell too, throw it on the Carb if you back fire and have flames.


That's a great safety tip... I never thought of that one

Plant sprayer... good idea as well. I just keep a garden hose handy to trickle water down the rad if needed (a wet radiator cools 300% more efficently than a dry radiator). I also park a big 30" industrial fan in front of the car, not only to move air across the radiator but to clear exhaust gases too

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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Fastymz
Moderator

Posts: 20708
From: Reno Nv USA M&M#1240
Registered: Apr 2001

posted 03-16-2003 02:46 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
Good idea Glen,but it should not back fire right?
Should I start and run it with or without the air clearner installed?

------------------
SCOOP
oddly obsessed with big scoops on little Mustangs

2.26 60'S
14.9 @ 90.86MPH

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

https://mustangsandmore.com/ubb/Fastymz.html

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Glens67
Gearhead

Posts: 495
From: Middleton, ID
Registered: Mar 2002

posted 03-16-2003 03:58 PM     Click Here to See the Profile for Glens67   Click Here to Email Glens67     Edit/Delete Message   Reply w/Quote
Correct no air cleaner, But unless you are right on the timing one side or the other it can back fire. better prepaired. Do you have points or electronic?

------------------
Glen
67 GT 390
65 Galaxie 500 XL 4 Speed
It was not a Red Light they gave me a Slow Tree
I WAS NOT LATE the Tree was Fast

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Fastymz
Moderator

Posts: 20708
From: Reno Nv USA M&M#1240
Registered: Apr 2001

posted 03-16-2003 04:02 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Glens67:
Correct no air cleaner, But unless you are right on the timing one side or the other it can back fire. better prepaired. Do you have points or electronic?


Electronic [pertronix],I marked the dist so I could but it back the way it came out.Does that change because of a new cam and balancer.I found TDC and but the rotor to number and then turn the dist the mark I made when I pulled it out.

I'll take your advice on the wet towel.

------------------
SCOOP
oddly obsessed with big scoops on little Mustangs

2.26 60'S
14.9 @ 90.86MPH

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

https://mustangsandmore.com/ubb/Fastymz.html

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Glens67
Gearhead

Posts: 495
From: Middleton, ID
Registered: Mar 2002

posted 03-16-2003 04:11 PM     Click Here to See the Profile for Glens67   Click Here to Email Glens67     Edit/Delete Message   Reply w/Quote
Cool drinks too, Yes the cam and timing change could move the timing, but you should be close. Have the timing light and tach set up too. after it fires allitle more advance than normal is good. 5-10 Degrees will keep it happy and a little cooler than retarded timing.

------------------
Glen
67 GT 390
65 Galaxie 500 XL 4 Speed
It was not a Red Light they gave me a Slow Tree
I WAS NOT LATE the Tree was Fast

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steve'66
Gearhead

Posts: 9489
From: Sonoma,CA,USA
Registered: Mar 2000

posted 03-16-2003 04:29 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Ron,

Just remember that there are two tdc's, a fire and an exhaust stroke. You have a 50-50 chance of being on the right tdc. To be sure leave #1 plug out and put your thumb on the hole. As you are cranking the engine towards tdc your thumb should be pushed off the hole by the compression, stop at tdc and set your distributor. It'll fire now, but have the towel ready like Glen suggested. He learned that one thru experience too. If it does flame up out the carb don't panic! Just cover the carb and it'll go out. I like to leave the distributor clamp loose enough that I can move the distributor around while cranking it the first time. If it kicks back it's too advanced, just turn the distributor ccw and it'll fire. You want it to fire off asap. Don't grind away on the starter.

SteveW

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Fastymz
Moderator

Posts: 20708
From: Reno Nv USA M&M#1240
Registered: Apr 2001

posted 03-16-2003 04:34 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
Steve I found TDC by turning the motor over by hand until I felt the compression on the number one,and then lined up the balancer and I also noticed the exhaust valve was just starting to move too.

------------------
SCOOP
oddly obsessed with big scoops on little Mustangs

2.26 60'S
14.9 @ 90.86MPH

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

https://mustangsandmore.com/ubb/Fastymz.html

[This message has been edited by Fastymz (edited 03-16-2003).]

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V8 Thumper
Gearhead

Posts: 4652
From: Phoenix, Arizona
Registered: Dec 2001

posted 03-16-2003 04:39 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
When I've 'taken my chances', I've found the odds to be closer to 90-10 against me I concur with the 'thumb over the hole' deal to verify TCD compression stroke

------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9"

All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html

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Glens67
Gearhead

Posts: 495
From: Middleton, ID
Registered: Mar 2002

posted 03-16-2003 04:40 PM     Click Here to See the Profile for Glens67   Click Here to Email Glens67     Edit/Delete Message   Reply w/Quote
It'll fire now, but have the towel ready like Glen suggested. He learned that one thru experience too.


Yea ther is nothing worse than a nervious guy with a dry cem extinguisher looking at a small carb flame getting ready to dump it all over your fresh motor.

------------------
Glen
67 GT 390
65 Galaxie 500 XL 4 Speed
It was not a Red Light they gave me a Slow Tree
I WAS NOT LATE the Tree was Fast

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steve'66
Gearhead

Posts: 9489
From: Sonoma,CA,USA
Registered: Mar 2000

posted 03-16-2003 04:55 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Fastymz:
Steve I found TDC by turning the motor over by hand until I felt the compression on the number one,and then lined up the balancer and I also noticed the exhaust valve was just starting to move too.



You're in good shape Ron,

enjoy!

SteveW

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james306
Journeyman

Posts: 82
From: falmouth,me,usa
Registered: Feb 2003

posted 03-16-2003 08:56 PM     Click Here to See the Profile for james306   Click Here to Email james306     Edit/Delete Message   Reply w/Quote
not to get off topic here, but last year my father n law built an engine running stand. he did it cause he buys used motors for his street rods and it is alot of work to get them in and out of some cars. this year he is setting it up to run fords too. it has water temp, oil pressure, voltometer, and a tach. it is great for breaking in cams cause you can put a motor on it in less than 30 mins.

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 03-16-2003 08:59 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Cam break in???????

I thought that it was Steve's old used Summit cam?

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Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
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Quote #1: "I never met a magazine mechanic I liked."
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Ryan Wilke
Gearhead

Posts: 2289
From: Stanton, Michigan 49707
Registered: Oct 2000

posted 03-16-2003 11:42 PM     Click Here to See the Profile for Ryan Wilke   Click Here to Email Ryan Wilke     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Glens67:
...Yea, there is nothing worse than a nervous guy with a dry chemical fire extinguisher looking at a small carb flame getting ready to dump it all over your fresh motor.

Yes, the material in a dry-chemical fire extinguisher is very good at putting out fires, however, don't forget that the material is also VERY COOROSIVE; Instead, I have a 20# CO2-filled fire extinguisher (not coorosive) and place it within 10ft of the front of the car when I've been messing around with the fuel or timing system, in case of a backfire or such. I also take the extinguisher with me to the track; (I don't want to be at the mercy of the track attendents if I have a 'problem').

Another lesson from experience:
I had just finished installing a new engine, so I pushed it out of the garage to start it for the first time. I had the garden hose at a trickle in the radiator.... Well I no sooner got it started that I noticed that it was running extremly HOT, like my headers where quickly turning cherry red!!!! I quickly realized that my timing was WAY retarded and thus there was a lot of air/fuel mixture burning in the headers and header mufflers! I ALSO QUICKLY REALIZED THAT I HAD CAUGHT THE GRASS UNDER THE CAR ON FIRE!!!! Luckly, I had the hose right there and was able to squirt down the grass under the middle of the car, or else my car probably would of been burnt to the ground had a few more moments passed.
Moral: Don't start/run hot rods over dry grass!

Ryan

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Fastymz
Moderator

Posts: 20708
From: Reno Nv USA M&M#1240
Registered: Apr 2001

posted 03-17-2003 01:05 AM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Moneymaker:
Cam break in???????

I thought that it was Steve's old used Summit cam?


Steve is a great guy to offer what he did.
But he could find the cam so I got the cam and lifter from summitr racing.It's the same as the performer cam.But for $82 it seemed like a good price.
So if I add in the price of all the gaskets,the new headers,water pump,balancer,misc parts,fuel filter,oil and filter,ect.It was not just a cheap easy timing cover gasket change.
I know you've all been there.

Ryan I will not start if over grass.In my drive way with the hose running,and big fan running,and few few water logged towels.

I sure hope it all goes well.

------------------
SCOOP
oddly obsessed with big scoops on little Mustangs

2.26 60'S
14.9 @ 90.86MPH

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

https://mustangsandmore.com/ubb/Fastymz.html

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