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  #166 (permalink)  
Old 06-06-2013, 06:00 AM
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I agree w/123pugsy: iron heads aren't a problem w/o a shim or spring seat/spring pocket, aluminum heads should use a hardened shim or spring seat/pocket to prevent wear. One other thing, there are valve stem locks that will give you more installed height that can be used instead of machining the spring pocket (there are other makers of these locks besides Crane). You might check w/a local machine shop to pick them up instead of buying the whole set.

If you use a +0.050" lock, check to be sure there's no clearance problem between the retainer and rocker.

You will notice the +0.050" lock will still leave you 0.008" too tight, this won't hurt. You can try swapping retainers around to see if you can find one that gives more installed height than the one on that particular valve.

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Last edited by cobalt327; 06-06-2013 at 06:12 AM.
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  #167 (permalink)  
Old 06-06-2013, 08:34 AM
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Quote:
Originally Posted by cobalt327 View Post
I agree w/123pugsy: iron heads aren't a problem w/o a shim or spring seat/spring pocket, aluminum heads should use a hardened shim or spring seat/pocket to prevent wear. One other thing, there are valve stem locks that will give you more installed height that can be used instead of machining the spring pocket (there are other makers of these locks besides Crane). You might check w/a local machine shop to pick them up instead of buying the whole set.

If you use a +0.050" lock, check to be sure there's no clearance problem between the retainer and rocker.

You will notice the +0.050" lock will still leave you 0.008" too tight, this won't hurt. You can try swapping retainers around to see if you can find one that gives more installed height than the one on that particular valve.

Thanks for the tip on the locks. I hadn't heard about those before.
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  #168 (permalink)  
Old 06-09-2013, 06:17 PM
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Thanks for the info guys.

I was wondering what effect the new cam might have on my timing. I have a clear disterbtor and bug with a 65K Coil. Iv always set the motor to TDC and lined up #1 on the cap with the bug. Will I be able to do this with the new cam or do I need to worry about getting a timing light???? Thanks guys.

Iv got some COMP Cams Engine Assembly Lube 127 grease on the way so I can install the lifters. Will this be fine??? http://www.summitracing.com/parts/cca-127

Some ppl are saying I have to use this! http://www.summitracing.com/parts/cca-103

Iv got the installed height with in 0.020 of 1.700 except one - 1.675 This is with the shim removed. How do I get it any lower with out shop work?

Thanks guy!

Waiting on parts. get close.
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  #169 (permalink)  
Old 06-09-2013, 06:29 PM
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Read post 166 and follow the link.

Also, it's time to get a timing light. You need it. Get the one with the dial back. You can advance the RPM's and check the timing with out the use of timing tape.
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  #170 (permalink)  
Old 06-10-2013, 12:44 AM
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So I cant break this thing in until I get a timing light?

What do you mean dial back.

Thanks for the info bro!
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  #171 (permalink)  
Old 06-10-2013, 03:42 AM
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When I say you need one, I mean if you're at the point in your hot rod hobby that you're building your own engine, you should have one.

I'm sure a lot of guys have broke in their motor without one, but they are a good to have. Timing too far advanced can cause engine damage and having it dialed in properly can save you a lot of grief. Especially when you come back with questions and the first thing someone asks you is what you got the timing set at.
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  #172 (permalink)  
Old 06-10-2013, 06:46 AM
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Hey folkses,I'm new here.Thought I would add somethin bout the Goodwrench crates.My 97 Z71 has 530'000 miles.I replaced the original motor @ 250K due to low oil psi.No other problems.The Goodwrench crate I replaced it with now has 280K with no problems except low oil psi.I'm currently rebuilding the original engine now.I did the swap in 2006.IDK if my crate is a Mexican or not.
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  #173 (permalink)  
Old 06-10-2013, 08:12 AM
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Originally Posted by jokerZ71 View Post
Hey folkses,I'm new here.Thought I would add somethin bout the Goodwrench crates.My 97 Z71 has 530'000 miles.I replaced the original motor @ 250K due to low oil psi.No other problems.The Goodwrench crate I replaced it with now has 280K with no problems except low oil psi.I'm currently rebuilding the original engine now.I did the swap in 2006.IDK if my crate is a Mexican or not.


??????????
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  #174 (permalink)  
Old 06-10-2013, 08:51 AM
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Sry. Wuz workin from my fone & didn't see but the 1st couple of pages of thread.They were discussin the quality of GM crates.I didn't see the remainining 10 pages which ruled out a crate.Pleeze disreguard.
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  #175 (permalink)  
Old 06-10-2013, 03:39 PM
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Quote:
Originally Posted by sweetlil66 View Post
Some ppl are saying I have to use this! http://www.summitracing.com/parts/cca-103
I have not followed this thread, are you breaking in a flat tappet cam? If so, CompCams has this red gel goo for break in lube. I would avoid it. Apparently you must place it on the cam and lifters and fire the motor within 24 hours in order to comply with the warranty policy. If you wait too long the stuff drips off. Get the real deal, it is a grey moly paste.

http://www.summitracing.com/parts/lun-99010
http://www.summitracing.com/parts/crn-99002-1
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  #176 (permalink)  
Old 06-13-2013, 02:44 AM
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So this stuff I just paid 15$ for isnt gonna work for break in - Ill order http://www.summitracing.com/parts/lun-99010 some time next weak.
Just sucks I gotta wait another weak. Thanks guys!
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  #177 (permalink)  
Old 06-14-2013, 01:12 PM
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Quote:
Originally Posted by 123pugsy View Post
When I say you need one, I mean if you're at the point in your hot rod hobby that you're building your own engine, you should have one.

I'm sure a lot of guys have broke in their motor without one, but they are a good to have. Timing too far advanced can cause engine damage and having it dialed in properly can save you a lot of grief. Especially when you come back with questions and the first thing someone asks you is what you got the timing set at.
Will this timing light work. http://www.summitracing.com/parts/anm-cp7529/overview/

Thanks guys!!
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  #178 (permalink)  
Old 06-14-2013, 01:30 PM
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Is it safe to set the engine to TDC and adjust the disturber to cylinder 1 for break-in. I know ppl do it but is it safe for just a break in???

Im getting low on cash. I can get a timing light but If i can wait a bit it would help!!!
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  #179 (permalink)  
Old 06-14-2013, 07:30 PM
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Quote:
Originally Posted by sweetlil66 View Post
Is it safe to set the engine to TDC and adjust the disturber to cylinder 1 for break-in. I know ppl do it but is it safe for just a break in???

Im getting low on cash. I can get a timing light but If i can wait a bit it would help!!!
Set the damper line on 8-10 degrees BTDC and hit the rotor dead on the #1 spark plug wire tower on the distributor and she should spark right up and it will be good enough to break in. Of course, this is on compression stroke.

BTW, that timing light should work fine. That looks exactly like mine, maybe just a different brand name. You can go without a timing light for now, but I've seen guys kick themselves in the butt after they realized how much better they could get their car running with the light.

When you gonna fire this thing!!
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  #180 (permalink)  
Old 06-18-2013, 02:31 AM
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Hey guys. have not moved forward much but I have a new question.
When I started this I installed a new high volume/high pressure oil pump. It only ran maybe 30 mins(If that) with the cam going bad. Since the engine had fresh oil - changed twice am i ok to reuse? I was told to wash it out with carb cleaner and then soak in oil. is this ok.

Next on the list.
I have a friend who gave me a http://www.summitracing.com/parts/sum-g3507x
He said it was just laying around and to go ahead and use it. he also gave me a pick up tube for it.
Now i know i dont need it - even with the high volume oil pump but can i use it with out worries ????
Will I steal fill the oil leave to full on the dip stick???? (Dont see why I wouldn but wanna make sure)

(I seen the epic cobalt vs MouseFink battle) Sorry but i have to agree with cobalt. Every car iv gottin the first thing i do is install a high volume /pressure oil pump - Not one of them have I had to do anything to the pan!!! Not saying there are not some out there wear you may need to mod the pan but that win went to cobalt hands down. Hot Rod Forum : Hotrodders Bulletin Board - Melling M155HV Oil pump? Cobalt YOU ROCK. Guys you all rock!!! I steal working on the teleporting beer app for cell phones. As soon as its done Ill send the beers out. I wounder if its legal to UPS a beer????
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