Author Topic: Progress on the GN! Heads/Lifter/installed  (Read 6628 times)

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Offline SuperSix

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Progress on the GN! Heads/Lifter/installed
« on: December 18 2011, 05:20:33 PM »
Finally stopped second guessing myself and got some good work done on the GN..

I prepped all of the lifters and installed them. I think it's the prep I worry about the most. I made sure to burnish in the moly lube on the lifters.

Followed all procedures I could find to do the rest. Cleaned and used a thread chaser on the block bolt holes, used  Q-tip to get thread sealant in there, then meticulously put it on the studs. Snugged them gently with an Allen wrench, then backed them out, and tightened them by hand - made sure to use the ARP lube on the washers, nuts, and stud threads (Q-tips work well here too). Torqued the heads to 50, then increments of 10lbs, until 70, then in 5lb increments. Used moly on anything that is metal to metal.

To be honest with you guys, I have never built a motor - hopefully that will explain my cautious attitude.

And of course - pics, PLEASE look at them and tell me what you think..

Thanks











































'87 GN, 60lb, TA49, THDP, FTP cam, T+ lots o' shit - SOLD
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Offline Scoobum

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #1 on: December 18 2011, 05:32:11 PM »
I think it's snowing in your garage.
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Offline daveismissing

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #2 on: December 18 2011, 08:29:00 PM »
Maye we need to chip in for some Head and Shoulders?
-Drain plug by Earl Brown, custom oil pan by Rich's Auto

Offline Charlief1

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #3 on: December 18 2011, 08:55:54 PM »
The only thing I see that's different is I usually chamfer the top of the bolt holes so it doesn't create a riser and cause gasket issues Mark. I also put the timing cover on before the pan. :) Put a couple of squirts of oil in the spark plug holes sot that there's some lube in there to help reduce drag on the pistons when you start to turn it over as well. :D :atbeer:
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Offline Steve Wood

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #4 on: December 18 2011, 11:31:47 PM »
How bout backing off the torque a bit, and then retorquing==a couple of times
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Offline Just a Six?

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #5 on: December 19 2011, 11:31:58 AM »
I think you need more pics! ;)

Do what Steve mentioned & if you have 2 heat guns you can get the heads to temp a few times & then let them cool down before you retorque. Good article here about half way down under induction. They say do it hot & others say after cooling down. I let mine sit overnite when I did it on my current motor. Either way it's easier on the stand.  http://www.hotrod.com/projectbuild/hrdp_0609_project_f_bomb_engine_build/viewall.html
David
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Offline SuperSix

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #6 on: December 19 2011, 11:34:08 AM »
I think you need more pics! ;)

Do what Steve mentioned & if you have 2 heat guns you can get the heads to temp a few times & then let them cool down before you retorque. Good article here about half way down under induction. http://www.hotrod.com/projectbuild/hrdp_0609_project_f_bomb_engine_build/viewall.html

:)

I used your torque instructions I found in a thread on TBs.com. Thanks!

How bout backing off the torque a bit, and then retorquing==a couple of times

I do this on one stud at a time, correct? Don't loosen all of them and then retorque?
'87 GN, 60lb, TA49, THDP, FTP cam, T+ lots o' shit - SOLD
'07 Ford F150 Lariat 2WD, 5.4L 3v - 255k
'20 Kubota BX2380. FEL, 60" deck
'78 IH/Case 184 Lo-Boy
'99 Kawasaki Bayou 400 4x4

Offline Just a Six?

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #7 on: December 19 2011, 11:36:54 AM »
I think you need more pics! ;)

Do what Steve mentioned & if you have 2 heat guns you can get the heads to temp a few times & then let them cool down before you retorque. Good article here about half way down under induction. http://www.hotrod.com/projectbuild/hrdp_0609_project_f_bomb_engine_build/viewall.html

:)

I used your torque instructions I found in a thread on TBs.com. Thanks!

How bout backing off the torque a bit, and then retorquing==a couple of times

I do this on one stud at a time, correct? Don't loosen all of them and then retorque?

That's how I do it. Altho, I have blown out stock gaskets before so maybe my tune needs attention! :)
David
87 LTD. Purchased May 88
Doeskin leather, coach lites without Landau Roof, moon roof, carpeted trunk & No Factory Hood Ornament!
The sticker on AC shows a V-8 Carb car. Special order by Mr. Nick Hall VP of GM Canada
Runs 11.50 on 21 lbs with my old style 67 Q Trim & Alchy

Offline SuperSix

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #8 on: December 19 2011, 11:49:44 AM »
How? One at a time?
'87 GN, 60lb, TA49, THDP, FTP cam, T+ lots o' shit - SOLD
'07 Ford F150 Lariat 2WD, 5.4L 3v - 255k
'20 Kubota BX2380. FEL, 60" deck
'78 IH/Case 184 Lo-Boy
'99 Kawasaki Bayou 400 4x4

Offline Just a Six?

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #9 on: December 19 2011, 12:32:16 PM »
Yes, one at a time & work from the centre out.
I have read that some say to add 4-5 lbs to the longer studs so I usually go a little extra on those ones. just a few lbs.
David
87 LTD. Purchased May 88
Doeskin leather, coach lites without Landau Roof, moon roof, carpeted trunk & No Factory Hood Ornament!
The sticker on AC shows a V-8 Carb car. Special order by Mr. Nick Hall VP of GM Canada
Runs 11.50 on 21 lbs with my old style 67 Q Trim & Alchy

Offline SuperSix

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #10 on: December 19 2011, 12:38:27 PM »
I was wondering about that too - the upper outer studs seem a bit too long - not sure if I screwed up..




'87 GN, 60lb, TA49, THDP, FTP cam, T+ lots o' shit - SOLD
'07 Ford F150 Lariat 2WD, 5.4L 3v - 255k
'20 Kubota BX2380. FEL, 60" deck
'78 IH/Case 184 Lo-Boy
'99 Kawasaki Bayou 400 4x4

Offline Just a Six?

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #11 on: December 19 2011, 01:06:18 PM »
The centre ones look a little short? Maybe the pic but looks like 1-2 threads only showing?
years ago I got some Stage 1 studs & they were short on the longer studs. It was a long time ago but I still have them somewhere. I would have to go looking & measure against a new set I have here. I just remember that I couldn't use a washer on 2 of them unless I backed out the stud a couple turns.
David
87 LTD. Purchased May 88
Doeskin leather, coach lites without Landau Roof, moon roof, carpeted trunk & No Factory Hood Ornament!
The sticker on AC shows a V-8 Carb car. Special order by Mr. Nick Hall VP of GM Canada
Runs 11.50 on 21 lbs with my old style 67 Q Trim & Alchy

Offline SuperSix

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #12 on: December 19 2011, 01:08:53 PM »
The centre ones look a little short? Maybe the pic but looks like 1-2 threads only showing?
years ago I got some Stage 1 studs & they were short on the longer studs. It was a long time ago but I still have them somewhere. I would have to go looking & measure against a new set I have here. I just remember that I couldn't use a washer on 2 of them unless I backed out the stud a couple turns.

They have the same threads exposed as the smaller pones on the bottom.

I put the 4 shortest on the bottom, 2 next-longer in the upper outside, and 2 longest in the middle top.
« Last Edit: December 19 2011, 02:12:51 PM by SuperSix »
'87 GN, 60lb, TA49, THDP, FTP cam, T+ lots o' shit - SOLD
'07 Ford F150 Lariat 2WD, 5.4L 3v - 255k
'20 Kubota BX2380. FEL, 60" deck
'78 IH/Case 184 Lo-Boy
'99 Kawasaki Bayou 400 4x4

Offline Just a Six?

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #13 on: December 19 2011, 01:55:21 PM »
Sounds right to me. I'm sure you won't have any issues. The machine work is critical but the rest is fairly easy with all the info we have on the boards. Some half decent tools & after no leaks break it in with some low boost to seat everything & then drive it like you stole it! ;)
David
87 LTD. Purchased May 88
Doeskin leather, coach lites without Landau Roof, moon roof, carpeted trunk & No Factory Hood Ornament!
The sticker on AC shows a V-8 Carb car. Special order by Mr. Nick Hall VP of GM Canada
Runs 11.50 on 21 lbs with my old style 67 Q Trim & Alchy

Offline Steve Wood

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Re: Progress on the GN! Heads/Lifter/installed
« Reply #14 on: December 19 2011, 04:17:42 PM »
seat what?  modern rings have probably seated before you get it out of the garage. 
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

 

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