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Author Topic:   First Time Starting.....
MetricMonte
Dirt Maniac

Total posts: 111
posted November 27, 2004 02:25 PM  
Had my engine built back in the summer, and getting to the point now where I am about ready to start it for the first time. I have been pumping oil with a gutted distributor for a couple months. Is there anything special I need to do before starting it for the first time??? Also after it hopefully starts, what do I need to do after its running for a break in, let it idle for a while or what????

THANKS!!!

I-B-RACIN
Dirt Maniac

Total posts: 132
posted November 27, 2004 02:29 PM  
Dont let it idle for first 20 minutes of run time, run at 2000 rpm get timing set an rad full run 20 minutes and let cool then ready to race

racer17j
Dirt Forum Champ
Total posts: 5390
posted November 27, 2004 03:46 PM  
Keep the engine running at 2,000 rpm but make sure that every few seconds you rev it up to about 2,500 rpm. Do this for at least 20 minutes. Turn off engine and re-check your valve lash just to make sure everything is cosher. Change oil and filter and you should be good to go.

For me, it's hard to break in an engine by myself. I usually have somebody else checking the coolant level in my radiator and also watching my gages to make sure I dont overheat. It's also a good idea that after you drop in the distributer to turn it so it is advanced a little bit during break in. One time for me it ended up being a little retarded and I overheated quickly and I had to turn the engine off only 10 minutes into break in. No big deal but I just like to get it right the first time. Have a Happy Break-In!

[This message has been edited by smallrock98 (edited November 28, 2004).]

[This message has been edited by smallrock98 (edited November 28, 2004).]

MetricMonte
Dirt Maniac

Total posts: 111
posted December 08, 2004 12:21 PM  
Started it for the first time today.... Did the 30 minute break in varying from 2000-3000 like the cam manufacturer instructions stated, then changed oil and filter. The oil was some pretty nasty stuff. Everything seemed to do pretty good, but after the 30 minutes I still had some smoke coming out of the breathers, will that eventually go away??? It was a very small amount of smoke when revved but increased at idle. Its not like it was pouring smoke from the breathers, just could see a little coming out if looking directly at them.
THANKS!!!

outlawstock17
Dirt Forum Champ
Total posts: 1363
posted December 08, 2004 12:30 PM  
it's normal for the first oil change to be nasty.....probably from the cam lube. the smoke out of the breathers is most likely a result of the rings not being seated in. you need to get the engine pretty hot for that to happen. try some cardboard in front of the radiator. i like to see at least 220 degrees before i'm comfortable that the rings are seated in...

dluna
Dirt Freak

Total posts: 334
posted December 08, 2004 12:37 PM  
or if you are like us, you changed the motor because the last motor blew up. Last time this happened a lot of oil got into the breathers, so when we put them on the next motor they smoked until it burned off. Probably stating the obvious here, just thought I'd throw it out there.

MetricMonte
Dirt Maniac

Total posts: 111
posted December 08, 2004 07:06 PM  
The breathers are new, but it didnt seem like it was burning any oil that was actually in the breather, nor did it seem like oil was coming out the breather, just a haze of smoke coming out around 2500 rpm and a little more at idle...Is this something I should worry about now or get some more run time on it before I start to worry??
THANKS

racenmotorsports
Dirt Maniac

Total posts: 169
posted December 08, 2004 07:10 PM  
I got the same problem. Don't know what's causing it.

MetricMonte
Dirt Maniac

Total posts: 111
posted December 08, 2004 07:33 PM  
I was hopeing mine is because this is the very first time my engine has been started and ran, so my engine only has about 30 minutes of run time on it. Hopefully after more run time there will be no smoke???????

racer17j
Dirt Forum Champ
Total posts: 5390
posted December 08, 2004 08:06 PM  
Until you get things seated in good you are going to get blow-by , which puts pressure into the crankcase area which is why the breathers are there basically.. Once ya get a little more time on it that will go away, but like everyone said, check filter good, change oil, also check the plugs as well, if the blow-by is bad it can foul the plugs or leave some deposits, etc... should be pulling them every week anyway..
44H

MetricMonte
Dirt Maniac

Total posts: 111
posted December 19, 2004 12:01 PM  
Well ran the car for the 30 minute break in and did all the oil change etc...Since then I have ran the car a few times for about 10 minutes at various RPMs. When I changed my oil the first time it smelt like racing gas. Then I smelt it after I ran it again after the initial oil change and it just smelt like oil, now after a couple more times running it on the same oil it smells like racing gas again. It was a brand new engine before the 30 minute break in. Its been pretty cold out everytime I have ran it and the car doesnt get any higher than about 160 when its running (goes about 215 after I turn it off though). Will everything eventually get seated or do you think I have a problem with the Fuel smell in the oil???

BIGG C
Dirt Maniac

Total posts: 114
posted December 19, 2004 03:29 PM  
Run engine until temp is up to usual,185-200. Let idle for about 5-10 minutes while setting idle, check temp.If normal, its hammer time. BIGG C

Eljojo
Dirt Forum Champ
Total posts: 968
posted December 20, 2004 05:29 AM  
Pur a piece of cardboard on the front of the radiator to block the airflow. Then get that motor up to operating temperature.

dluna
Dirt Freak

Total posts: 334
posted December 20, 2004 09:58 AM  
Are you running a thermostat?

MetricMonte
Dirt Maniac

Total posts: 111
posted December 20, 2004 02:30 PM  
Gutted Thermostat for a restrictor.

nailngoracing
Dirt Maniac

Total posts: 170
posted December 29, 2004 10:03 PM  
why a restrictor?

if you slow the water to cool in the radiator...aren't you slowing the water to heat in the engine??

just curious.

we run a thermostat...only to pre-heat faster. i don't recommend it though.

hobby10k
Dirt Freak

Total posts: 226
posted December 30, 2004 01:46 AM  
ok thats a question that I had. I have heard some people say something about not running a restrictor. should someone run one or not? I just run a gutted thermostat now too.

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LIVE RACING, WHAT ELSE IT THERE?

racin78p
Dirt Freak

Total posts: 333
posted December 30, 2004 05:29 AM  
We ran too hot at the beginning of last year, so we pulled the thermostat and put in a restrictor (7/8 I think) and it helped the motor to run much cooler, around 190 - 200. Before I would get about 4 laps in and 230 was coming fast. BUT we run racing gas. If you run alcohol it's a different story, they run ALOT cooler.

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racin78p
if it ain't fun, then don't run

pmiracing
Dirt Full Roller

Total posts: 44
posted January 01, 2005 05:00 PM  
circle track ran an article on cooling and a guy from some radiator company said that by putting a restrictor in all you do is put air in the system from the cavitation in the pump

waltonjr1
Dirt Forum Champ
Total posts: 516
posted January 01, 2005 05:28 PM  
The purpose of a restrictor is to keep enough pressure in the head to stop heat pockets from forming......however, if you run a high flow racing pump such as a stewart with 1 to 1 pulley's it is recomended that you run it without a restrictor b/c the pump is designed to flow at high rpm's and create enough pressure without restriction giving you more volume and a faster flow keeping your engine cooler. If you run no restrictor with a stock pump the pump will not hold the pressure high enough to stop air(heat) pockets from forming and will cavitate causing overheating problems.


hobby10k
Dirt Freak

Total posts: 226
posted January 02, 2005 12:44 AM  
Hey that sounds good, I think I will try that. that is if I get a good water pump.

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LIVE RACING, WHAT ELSE IT THERE?

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