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01-18-2016, 02:44 PM | #1 | |
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Re: Starting my engine build
Quote:
https://www.youtube.com/watch?v=5a2X9mSSlQY ...this is just one of them...they are several, many of which deal with the distributor installation on a 'new' engine or one that that has had the original timing disturbed. All Good Coley
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....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500 |
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01-18-2016, 03:20 PM | #2 | ||
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Re: Starting my engine build
Crank gear dot goes "up" at 12 o'clock position.
Cam gear dot goes "down" at 6,0clock position. There will be 2 little dots on the gears to line up. This will put the engine on the #6 compression stroke. Then rotate the crank to bring the cam gear dot to the "top" 12 o'clock position and you will now be on the #1 compression stroke. Clear as mud? Also... for what it's worth... you couldn't pay me to install a used cam and lifters nowadays. Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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01-18-2016, 03:42 PM | #3 |
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Re: Starting my engine build
Here's what I do...
Remove #1 plug Put finger OVER hole, not into it Crank engine over with socket driver with other hand Wait for compression to form and push your finger off You should be approaching the mark on the balancer. Continue to 8 degrees BTDC Install rotor with tab pointing at what will be the #1 wire on the cap Tighten down clamp enough that you could still adjust the timing. Install cap. When you fire it, get it up to 2000rpm and keep it there (at least 1500) to do your cam breakin. If it doesn't fire promptly, stop cranking and figure out why. You won't be able actually set the timing (except total) because centrifugal will be kicked in, but just set it to something that runs well for the breakin and set the actual final timing later. Make sure your choke and all of that is working and set before you fire it. You'll be at high enough rpm you can likely run it without a choke, but why fight it?
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01-18-2016, 04:30 PM | #4 |
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Re: Starting my engine build
Got some bad news from the machine shop. Heads need some machining so the new springs can be installed properly. Need new retainers, clips and shims, and labor. Add the 300 bucks I paid for the heads and 100 for valve springs and my grand total into these heads is 950.....that sounds like a nice set of aluminum heads to me. Maybe next time. I guess it can't all go smooth and perfect the first time.
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01-18-2016, 04:30 PM | #5 |
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Re: Starting my engine build
Thank you guys for the replies on timing
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01-18-2016, 07:10 PM | #6 |
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Re: Starting my engine build
Dude do you just have a big wallet or crazy for some wrenchin' .I get the machine shop check on the heads,but springs and a cam? The head change alone will give you seat of the pants pull!!!! Did you pull the cam? what is it, You are worried it is not big enough? I would like to see pics of the end of the cam(part# serial# etc...)
I hope you have the carb/intake/exhaust to go with your build!!!
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01-18-2016, 08:50 PM | #7 |
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Re: Starting my engine build
Here's the cam I pulled out. It's a Lunati 285 Bracketmaster 2. I have matching lifters for it as well.
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01-18-2016, 08:55 PM | #8 | |
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Re: Starting my engine build
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01-18-2016, 08:59 PM | #9 |
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Re: Starting my engine build
This is my barn floor so far
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01-18-2016, 09:50 PM | #10 |
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Re: Starting my engine build
That is looking awesome. You will be plenty of happy when your back together again.
Make sure your head shop puts in Viton seals. Those things really help keep compression and oil consumption to a minimum! |
01-18-2016, 09:52 PM | #11 |
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Re: Starting my engine build
Thanks man! And I'm glad you mentioned it, I doubt they have started the seals yet.
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01-19-2016, 02:57 PM | #12 |
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Re: Starting my engine build
Also confirmed they are using Viton seals, thanks for the heads up
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01-18-2016, 11:48 PM | #13 |
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Re: Starting my engine build
Just to add before you fire that thing take a small bottle of gas and fill that carb up or use an electric pump. Also a really good idea to get an oil pump primer before you fire it and run it for a minute or two after you get oil pressure just to get it flowing.
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01-19-2016, 02:58 AM | #14 |
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Re: Starting my engine build
The importance of using a good Moly Paste for proper cam & lifter break in can not be over stated.
Spread it on the cam lobes (not bearing surfaces) before sliding the lump stick in. Or you can apply the paste to the lobes through the lifter holes with a small brush after install while spinning cam to ensure even distribution. |
01-19-2016, 07:19 AM | #15 |
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Re: Starting my engine build
A good high phosphate break in oil would be important to the cam/lifter break in, for the first start/run.
Sounds like you have it under control,Good luck and sounds like you're already having fun!!
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01-19-2016, 09:57 AM | #16 |
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Re: Starting my engine build
LOTS of fun this has been such a good time and I've already learned so much that even little bumps in the road like the heads getting expensive don't really seem all that bad. I look at it this way, before I busted out the wrenches and went for it, I had started another thread about the engine build, and the labor for JUST the cam and head install with a tune was 2800 bucks. And that didn't include head work, gaskets, springs, nothing. And when it's done I'll be drivin a truck that I built instead of just farming out labor and then driving something I know nothing about.
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01-19-2016, 08:14 AM | #17 |
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Re: Starting my engine build
Sounds like they're putting heavy springs in it. (high spring pressure) if they have to machine the heads to make em fit. are the duel springs? Whats the pressure specs on the springs. heavy spring pressure can be bad for cam break-in, alot of guys put in lighter springs or remove the inner spring for less pressure till break-in is complete, then replace the heavier ones. (a lotta extra work).. Not to add fuel to the fire, (something more to worry about), see if you can get the spring specs and post them..
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01-19-2016, 09:59 AM | #18 | |
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Re: Starting my engine build
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01-19-2016, 12:21 PM | #19 |
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Re: Starting my engine build
The comp cams zdp additive is what you'll need to add to the oil during break in. Depending which oil you use. They also suggest adding that additive every oil change to put back in the oil what modern cars don't need anymore. This chart may also help to determine a converter I just did a little searching for it
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01-19-2016, 12:50 PM | #20 |
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Re: Starting my engine build
At the local shop I trust they break in all flat cams with high zddp oil like Joe Gibbs racing oil (I have no personal or financial interest in it, just telling you what they have luck with).
I've always heard to use light springs if you can, but you'd need a spring compressor, then you'd need to keep track of the shims and springs and where they came from, and a set of light springs to use that don't bind. Unless we know we're talking about a lot more spring than stock, I'd risk it. But if it IS a lot more, then don't just chew the cam up because swapping springs is hard, we need to do something. But I don't see any indication of heavy springs?
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01-19-2016, 02:56 PM | #21 | |
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Re: Starting my engine build
Quote:
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01-19-2016, 08:13 PM | #22 |
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Re: Starting my engine build
That would be an awesome experience. Techniques and tricks from a guy like that are like finding gold.
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01-19-2016, 08:43 PM | #23 |
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Re: Starting my engine build
Have you bought the modeler's clay yet?
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01-19-2016, 09:12 PM | #24 |
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Re: Starting my engine build
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01-19-2016, 09:50 PM | #25 |
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Re: Starting my engine build
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