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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Tue Mar 09, 2010 10:48 pm Post subject: First Rebuild |
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I started my first engine rebuild last week on a 2.8 out of an 86 S-10. Originally we were going to swap in the 3.4, but decided to sell the truck and put the 3.4 in my camaro. This will be good practice before I start my 3.4 build.
There is sooo much grease on this motor, I don't know where to begin! Everything works fine, it ran before I tore it down, but it was running extremely poorly. Confused that it ran when the camshaft timing gear was pointing 90 degrees off. Other than that, the motor is just dirty...
I have my work cut out for me on my first rebuild.
Some pictures...
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Last edited by d00012 on Tue Mar 09, 2010 10:58 pm; edited 1 time in total |
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Tue Mar 09, 2010 10:56 pm Post subject: |
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I have since cleaned the heads, they look very nice now. Just don't have the tool to remove the springs so I can remove the valves and really go to town on this motor. Someone is going to get a strong running S-10 once I am done with it!
New parts I will be getting:
Oil pump
Timing gear/chain set
Something with the valves (name has escaped me, my dad kept telling me)
Dipstick (I broke it )
Head bolts
Balancer (old one is lopsided)
Fuel filter
Everything else looks good, and I can't remember all of the things we need right now. |
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rjmcgee The Hammer

Joined: 08 Jan 2004 Posts: 2328
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Posted: Wed Mar 10, 2010 2:44 am Post subject: |
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| bearings, rings, machine work, and camshaft? |
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Twilightoptics Hardcore (12sec Club)

Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Wed Mar 10, 2010 6:48 am Post subject: |
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I have a set of 2.8L heads that I did a valve grind to, cleaned, and new seals and surfaced. Would cost you about $300 for all the work.
You can have em for $75 plus shipping (to arlington would be around $60 I think) they're pretty light.
http://www.cascadecrew.org/phpBB2/viewtopic.php?t=6525 _________________ A redline a day keeps the carbon away! |
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Wed Mar 10, 2010 8:36 am Post subject: |
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| rjmcgee wrote: | | bearings, rings, machine work, and camshaft? |
The bottom end looks good (my dad checked just to be sure). Machine work, probably not, we don't want to put too much money into this rebuild. Just make it so the motor is more reliable and clean. My dad was thinking of a new camshaft. Would the 3.4 cam be good for the tbi 2.8?
| Twilightoptics wrote: | Would cost you about $300 for all the work.
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The 3.4 I'm going to build will need head work. Like larger valves, porting, gasket matching; something to work well with one of these cams I have in mind:
http://www.summitracing.com/parts/CCA-16-233-4/
http://www.summitracing.com/parts/MEL-MTC-5/
Once this 2.8 S-10 is done, I'll be getting my firebird up and running, possibly selling it to fund my 3.4 project. |
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izcain 9sec Club
Joined: 09 Sep 2006 Posts: 1306 Location: Port Angeles WA
1983 Chevrolet Camaro Z/28
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Posted: Wed Mar 10, 2010 9:41 am Post subject: |
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With all that garbage in the lifter valley I would suggest at least a light hone and new rings and bearing AFTER you totally scrub out that block and all the passages!
just my .02 _________________
1983 Z28 383 + 201ci more = New Heart for this season!
9.17 @ 148 |
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Wed Mar 10, 2010 9:43 am Post subject: |
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| It all depends on how much my dad wants to spend on this motor, he's so tired of how many vehicles and motors there are (6 motors; 11 cars at one point, now 9 cars). Taking up his valuable garage space, haha. He mentioned doing that, but I don't know for sure, I'm just doing all the dirty work, he manages. |
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Twilightoptics Hardcore (12sec Club)

Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Wed Mar 10, 2010 10:16 am Post subject: |
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| d00012 wrote: | The bottom end looks good (my dad checked just to be sure). Machine work, probably not, we don't want to put too much money into this rebuild.
| Twilightoptics wrote: | Would cost you about $300 for all the work.
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The 3.4 I'm going to build will need head work. Like larger valves, porting, gasket matching; something to work well with one of these cams I have in mind:
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hehe so then you're into another $50 in valves, $75 in seats maybe, lol porting for a 2.8L hehe endless time for nadda? You realize if you change cams and make the heads flow better, it'll run like POO till you get a custom tuned chip in it...
If you just want it cheap and running. Then do it right and make it reliable and stock. You aren't going to get "power" of of the 2.8.
ASK Blue89 who stroked his, made it as good as it gets..... and still didn't make 305 power... then stuck in a BBC.
Humble opinion here. _________________ A redline a day keeps the carbon away! |
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Wed Mar 10, 2010 10:19 am Post subject: |
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Oh, the work is for my 3.4, not the 2.8 I am rebuilding (it's not getting any power upgrades). Was just wondering how much it would be for the work on the heads.
Sorry for the confusion. |
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blue89 Member

Joined: 23 May 2006 Posts: 3482 Location: Bellingham/Eugene
1986 Chevrolet Camaro RS
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Posted: Wed Mar 10, 2010 4:51 pm Post subject: |
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| Twilightoptics wrote: |
ASK Blue89 who stroked his, made it as good as it gets..... and still didn't make 305 power... then stuck in a BBC.
Humble opinion here. |
Um, ya. I hit 140hp to the wheel pulling a 12.5 afr with a huge (relatively) cam, massive port work and bowl blending, a 3.25, and ignition/fuel tuning. It's the heads. Iron heads suck if you want to make power. Unless you do GenIII heads, don't even bother. Cost me $300 to put new 3 angle valve seats in with new guides, cleaned, true'd, and assembled. Money I could of should of have spent on the big block. _________________ E30
86 RS - 7.4L V8 SOLD
89 RS - 3.25L V6 REMOVED
89 RS - 5.7L LT1 SOLD
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Wed Mar 10, 2010 4:56 pm Post subject: |
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But that is for my 3.4...and was only asking how much it would cost to do the head work. And I want the iron heads for forced induction later on down the road. It is only my DD right now, and would like a little more pep out of it, hence the 3.4 swap and work I want to do to it. Not looking for big power, I bought my Firebird for that. Just to clear up any confusion. _________________
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5476
1987 Pontiac Formula
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Posted: Wed Mar 10, 2010 6:24 pm Post subject: |
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Don't want you to feel ragged on here. But I do have one point I'd like to make. This is not your first rebuild. It's nowhere close to being a rebuild unless you put rings and bearings in this motor. Just taking it apart and scrubbing it up aint it. I would hope if you sell this you don't tell the buyer the motors rebuilt.
Anyway, if this is something you're going to keep for any time. I'd at least give it a hone job with a dingleberry hone and slap some rings in it. Bearings can be looked at and checked to see if they're ok. Rings are impossible to tell if they're good by looking. From the carbon and stuff in that motor, i'd bet it needs rings and bearings.
I've done a couple 2.8s the same way you're doing. Junkyard motor.. clean it up and install to get rid of the car. Of course then we keep the car too long and it burns oil.. and throws a rod.. Both times LOL |
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Wed Mar 10, 2010 6:33 pm Post subject: |
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My dad and I just found a complete rebuild kit for $300. We are trying to budget this thing, and it sucks that we might end up cutting corners, but my dad is a stickler for space, he likes his garage to be clean, and wants everything gone quickly. I know it's not a rebuild unless we get everything, I've been telling my dad we should, but I'm not the one spending the money, just doing the work. And I wouldn't tell the buyer the engine was rebuilt if all I am doing is cleaning it, I know better than that .
I don't feel ragged on, I appreciate the criticism/opinions, it's helpful. I'm learning as I go.
The rebuild kit is from titan-engines on eBay. Has anyone here worked with them before? |
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5476
1987 Pontiac Formula
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Posted: Wed Mar 10, 2010 6:43 pm Post subject: |
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Cheap rebuilds are possible. We can't tell what you need from here though. It's possible your cylinder walls are in fair shape and would just need a good honing. If thats so you could just install rings on your old pistons. Same deal with your bearings. If the crank isnt all scraped up and measures good, a set of standard bearings will get you back into shape. Even if things are out of spec a little, new rings and bearings will definatly be better then whats in there now. Won't be a new engine, just better.
Rings, bearings, gaskets and paul's heads.. You'd have a pretty cheap, decent running motor. Oh.. forgot the camshaft and timing chain. They're most likely trash.. so theres that as well.
Good luck. |
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Wed Mar 10, 2010 6:50 pm Post subject: |
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I think my dad just wants the rebuild kit and that's it. He wants this thing GONE. I don't blame him, it's a bit of a cluster f*** in that garage. Since the rebuild kit is a good price (includes pistons, rings, cam, timing gear, bearings, gaskets, etc) we are just going replace pretty much everything but the heads, block, and intake/tbi unit.
I just don't know about this titan-engines from eBay. Have any of you purchased from them or know anyone who has? _________________
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kurfbird Member
Joined: 02 Mar 2005 Posts: 866 Location: Whidbey Island
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Posted: Wed Mar 10, 2010 8:38 pm Post subject: |
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| Twilightoptics wrote: | I have a set of 2.8L heads that I did a valve grind to, cleaned, and new seals and surfaced. Would cost you about $300 for all the work.
You can have em for $75 plus shipping (to arlington would be around $60 I think) they're pretty light.
http://www.cascadecrew.org/phpBB2/viewtopic.php?t=6525 |
If he does not want them I would be interested. Would put them on my 3.4 _________________ kurfbird
1991 Camaro 3.1 v6
1991 Firebird 3.1 v6
1992 Formula 350 5.7
700r4 Transmissions
brucesthirdgenparts.com |
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Wed Mar 10, 2010 8:44 pm Post subject: |
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I don't need them, so you can take them. _________________
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blue89 Member

Joined: 23 May 2006 Posts: 3482 Location: Bellingham/Eugene
1986 Chevrolet Camaro RS
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Posted: Wed Mar 10, 2010 9:12 pm Post subject: |
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| Didn't mean to rag on you about the build dude. Just been there done that. Huge kudo's if you turbo it! I feel that it's the best way to wake them up. Not that I've done it, but the port/valve size just doesn't support anything else. |
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d00012 Member

Joined: 12 Apr 2009 Posts: 679 Location: Granite Falls
2007 Pontiac GTA
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Posted: Thu Mar 11, 2010 5:43 am Post subject: |
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You're not ragging me You're giving your opinion. Yeah, those heads suck, and not in the way we want them to! I got a good look at the ports, what was GM thinking!?
Anywho, this 2.8 is just staying stock, put back into the truck and sold. Whoever buys it will know what I did to the motor and if I left anything out.
The 3.4 won't be an intense build, just mild to make highway driving a little more fun than what it is now. Until I have the time and money to turbo.
Back to this dirty and used block....
Going to pull the rest of the bottem end out today. Get everything ready for a complete rebuild. Try and find my dad's honing tool (if he didn't give/sell it). Clean the block and then hone.
I will have pictures of my progress. (quality will go down since I don't have my gf's XTi and 50mm lense ) |
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91RSVert Member
Joined: 16 May 2007 Posts: 2736 Location: AR
1991 Chevrolet Camaro RS
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Posted: Thu Mar 11, 2010 7:36 am Post subject: |
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Ive done the 3.4 swap. And am the one who wrote the tech article on tgo.
The 3.4 cam is to much of a road cam for any truck use. Rebuild it back to stock and get rid of it. _________________ 2008 GMC Z71
1991 Camaro RS Vert
1972 Jimmy 4x4
20ft Longhorn Car Hauler
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