Author Topic: Noise  (Read 5010 times)

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Offline aka-justin

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Re: Noise
« Reply #15 on: September 29, 2012, 12:18:30 AM »
Never done this before... but I stayed at a Holiday Inn Express last night, so I wiped think I'm good.
[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline aka-justin

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Re: Noise
« Reply #16 on: September 29, 2012, 08:49:47 PM »
Made some progress before it hit 97 degrees and beer 30...






[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline aka-justin

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Re: Noise
« Reply #17 on: September 29, 2012, 08:51:30 PM »
I had the valve cover off, removed the rockers and push roads, and broke free a few of the head bolts before I quit. Everything is sorted with some card board I turned into bolt holders.
[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline sharpxmen

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Re: Noise
« Reply #18 on: September 29, 2012, 11:02:13 PM »
i can't remember so i'll ask - did you get new pushrods? if you didn't they're like $2 a piece so might as well do it.
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline aka-justin

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Re: Noise
« Reply #19 on: September 29, 2012, 11:16:07 PM »
Nope, I didn't get new ones. They all look ok, wiped them down and blew them out with air. I'll see whats local before I button it up.
[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline sharpxmen

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Re: Noise
« Reply #20 on: September 29, 2012, 11:19:18 PM »
Nope, I didn't get new ones. They all look ok, wiped them down and blew them out with air. I'll see whats local before I button it up.

that is a must, you should get new ones (they're dirt cheap anyway).
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline aka-justin

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Re: Noise
« Reply #21 on: September 29, 2012, 11:51:16 PM »
I forgot to mention that my nose picked a fight with an exhaust manifold flange bolt. I didn't realize it did anything other than hurt till later.

« Last Edit: September 29, 2012, 11:51:32 PM by aka-justin »
[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline dwtaylorpdx

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Re: Noise
« Reply #22 on: September 29, 2012, 11:52:45 PM »
At 66k miles? I'm a little heasitant. If it was 100k+ I'd be game. How much has it run you to get it done?

Most valve springs are down 1/3 of their rate by their 5th birthday running them or not. (Biggest weakness in buying a crate motor, a few of those springs have been fully compressed since the motor was built...)

By comparison, the sprint car I take care of the springs are replaced each season, that's like 12 hours of runtime... BUt at 9000 LOL

If you take the head apart yourself, and take the bare head to a shop a boil out is like 20 to 40 bucks.
Valve springs are a few bucks, set about 140.. Your stock ones can be bench tested at a machine shop for probably 20 bucks... Or if you have a high school with a auto shop I've hit the teacher up to have a student test them for me and made a "donation" to teh shop fund... ;)
Valve seal kit about 20 bucks.
If I pull a head I have a shop check it for straightness and maybe have them hone it .005 just to open the surface up for being re-seated on the engine. Not a big deal... if you don't have that done, make sure the new metal is lightly sanded to open the pores of the casting back up for the sealant on the new head gasket.

CHeers
Dave



94 YJ - 2.5 Hesco Cam B&B Ported - AX5 Trans w/Centerforce Dual Friction Clutch - 4" Rough Country Lift W/Skyjacker Shocks - D44 Rear/ARB - D30/ARB - ARB Compressor - Warn M8000 in Custom Bumper - Reunell Rear Bumper - Metalcloak 6" Body Armor Kit - Tuffy Console - 265x85-16 Tires - 2M Radio

Offline aka-justin

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Re: Noise
« Reply #23 on: September 30, 2012, 12:07:42 AM »
Most valve springs are down 1/3 of their rate by their 5th birthday running them or not. (Biggest weakness in buying a crate motor, a few of those springs have been fully compressed since the motor was built...)

By comparison, the sprint car I take care of the springs are replaced each season, that's like 12 hours of runtime... BUt at 9000 LOL

If you take the head apart yourself, and take the bare head to a shop a boil out is like 20 to 40 bucks.
Valve springs are a few bucks, set about 140.. Your stock ones can be bench tested at a machine shop for probably 20 bucks... Or if you have a high school with a auto shop I've hit the teacher up to have a student test them for me and made a "donation" to teh shop fund... ;)
Valve seal kit about 20 bucks.
If I pull a head I have a shop check it for straightness and maybe have them hone it .005 just to open the surface up for being re-seated on the engine. Not a big deal... if you don't have that done, make sure the new metal is lightly sanded to open the pores of the casting back up for the sealant on the new head gasket.

CHeers
Dave


Thanks for the info sir. Its just a daily driver and I rarely hit over 3k rpm in my travels to work - I top out around 60 mph. I work at a college that has a full autoshop and I'd like to rebuild the entire motor later in it's life, but, for now, I just want to attack these lifters. I agree with you on the spring rate and I'm sure it could use the vavles being turned, but I'm not racing and it has a lot of power right now which I'm happy with until it wears down more. I think I'd be a bit premature to go so deep into the valve train.

I did notice, after pulling all the stuff off the block, the front of my cyclinder head is leaking oil down the front. I was hoping it wasn't my rear main seal, but now I can see a trail of oil down the front of the block, to the timing cover, and along the pan. I'll watch for the oil collecting around the exterior of the pan afterward.
[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline aka-justin

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Re: Noise
« Reply #24 on: September 30, 2012, 01:50:25 AM »
that is a must, you should get new ones (they're dirt cheap anyway).

So, I talked with my father in law, a retired mechanic, and he wanted to look over the push rods and rockers. He inspected the push rods and said to rotate them and the ends look ok - along with 20 million things to do, not do, look for, clean, blow out, .......... he said it probably would still make the noise... hahaha
« Last Edit: September 30, 2012, 01:50:58 AM by aka-justin »
[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline sharpxmen

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Re: Noise
« Reply #25 on: September 30, 2012, 09:55:06 AM »
they break in with the lifter, it will work without replacing them but that's the recommendation. if you don't replace them you should at least keep the rockers in the same spot and the pushrod ends in the same spot (on the same cylinder and the end that went in the rocker placed the same way).
'95 YJ, NSG370 6spd / Hurst shifter, Dana 300 + 4:1 Doubler / tri-stick, Custom skid, Super D35 / Auburn LSD / 4.88, 35x12.5x15 BFG KM2, 64mm t/b, 1.7 RollerRockers, MkVIII e-fan, Dual Diaph Booster
Latest: Corbeau BajaRS heated seats :dance: keeping warm the rear end

Offline aka-justin

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Re: Noise
« Reply #26 on: September 30, 2012, 01:21:15 PM »
they break in with the lifter, it will work without replacing them but that's the recommendation. if you don't replace them you should at least keep the rockers in the same spot and the pushrod ends in the same spot (on the same cylinder and the end that went in the rocker placed the same way).

I put everything in order into cardboard. Got it. Almost done. Had to come back in to get the rocker arm ft. lbs.
[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline aka-justin

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Re: Noise
« Reply #27 on: September 30, 2012, 11:34:01 PM »
She's alive and no more TAK TAK TAK TAK TAK TAK.... but I did manage to toast the TPS sensor when I went crazy at the car wash with degreaser. So, one last sensor and it'll be purring like a kitty. ;)

<a href="http://www.youtube.com/v/viZxBt3wY0M?version=3&amp;amp;hl=en_US" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">http://www.youtube.com/v/viZxBt3wY0M?version=3&amp;amp;hl=en_US</a>

Pics of earlier that day once I pulled the head initally off. A lot of carbon. I got all that I could off but the top of the pistons had a lot - I even soaked them with carb cleaner. Scraped the top and head too. Would have been smart to have the head boiled - but I'm too dumb.  :whistle:





« Last Edit: September 30, 2012, 11:36:54 PM by aka-justin »
[1995 YJ 2.5L with 4" lift on 31" KM2 - Sold] 1995yj
[2003 TJ Rubicon 4.0L with 4" lift on 35" Wrangler M/T - Sold]
To be continued...
--Justin

Offline Jeffy

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Re: Noise
« Reply #28 on: September 30, 2012, 11:48:39 PM »
Probably need to take it on a road trip and get the engine nice and hot to clean the carbon out.
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Offline neale_rs

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Re: Noise
« Reply #29 on: October 01, 2012, 08:15:17 AM »
Good work!
'95 YJ, 33 x 12.5 mud tires, RE 4.5 ED lift, Atlas 4 speed, rear D44, ARBs front and rear, 4.56 gears, 8000# winch