Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

valve job

Thread Tools
 
Search this Thread
 
Old 01-08-2006, 08:03 PM
  #1  
Junior Member
Thread Starter
 
anything-z's Avatar
 
Join Date: Oct 2005
Location: st louis
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Car: 86 Iroc
Engine: 87 305 tpi
Transmission: auto
valve job

i think i'm in need of having my valve seals replaced. every time i start my car here lately i have a nice puff of smoke come out. my question is how much should i expect to pay for haveing the valve seals replaced or the heads rebuilt. or is this a pretty easy job to do .
Old 01-08-2006, 08:10 PM
  #2  
TGO Supporter

 
Stekman's Avatar
 
Join Date: Jul 2003
Location: Grand Rapids, MI
Posts: 4,803
Likes: 0
Received 0 Likes on 0 Posts
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
You can do it yourself, depending on how well you know your way around the engine bay and how mechanically inclined you are. There are several good threads already about valve seal replacement if you want to search about what's all required.
Old 01-08-2006, 08:10 PM
  #3  
Moderator

 
Apeiron's Avatar
 
Join Date: Jan 2000
Location: Mercedes Norte, Heredia, Costa Rica
Posts: 20,981
Likes: 0
Received 9 Likes on 8 Posts
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
It's a pretty simple job to do yourself. The only special tools required are a valve spring compressor, and if you're doing it with the heads still on the engine either an air holder or a length of nylon rope.
Old 01-08-2006, 10:32 PM
  #4  
Junior Member
Thread Starter
 
anything-z's Avatar
 
Join Date: Oct 2005
Location: st louis
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Car: 86 Iroc
Engine: 87 305 tpi
Transmission: auto
I just had the drivers side valve cover off and now i wish i hadn't, its all messed up in there. pretty nasty looking sludge everywhere. so, besides a air holder for doing the seals, how can i clean it up there?
Old 01-10-2006, 11:47 PM
  #5  
Member
 
SScott's Avatar
 
Join Date: Nov 2005
Location: Millbrook, AL.
Posts: 187
Likes: 0
Received 0 Likes on 0 Posts
Car: 91 Mustang
Engine: 306
Transmission: T5
Axle/Gears: 8.8 4.10's
I would not clean it unless you take the head off. Sounds like it's needs a basic rebuild.

I have changed my seals in the car using the air tool and it was fairly easy but it didnt help that much. I was on a major budget so I just bought a cheap re-ring kit, honed it myself and had the heads worked (this was a looong time ago) and that was the smoothest running lil TPI 305.
Old 01-11-2006, 07:49 AM
  #6  
Junior Member
Thread Starter
 
anything-z's Avatar
 
Join Date: Oct 2005
Location: st louis
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Car: 86 Iroc
Engine: 87 305 tpi
Transmission: auto
yeah, i think i'm just gonna replace the heads all together. i'm watching a set on ebay right now so as long as the price doesnt go too high i'll be good.
Old 01-11-2006, 09:17 AM
  #7  
Supporter/Moderator

iTrader: (7)
 
ShiftyCapone's Avatar
 
Join Date: Feb 2001
Location: Cincinnati, OH
Posts: 13,272
Likes: 0
Received 396 Likes on 302 Posts
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by anything-z
yeah, i think i'm just gonna replace the heads all together. i'm watching a set on ebay right now so as long as the price doesnt go too high i'll be good.
Why replace them? I would just rebuild your stockers and do a little port work if you want to add a bit of performance.
Old 01-11-2006, 09:36 AM
  #8  
Senior Member

iTrader: (2)
 
'Shifter's Avatar
 
Join Date: May 2005
Location: Tucson, Arizona
Posts: 789
Likes: 0
Received 0 Likes on 0 Posts
Car: 87 Z-28
Engine: A worn-out 305
Transmission: T-5, until it dies
If it's that nasty up top, imagine what it will look like down low where gravity
pulls all the muck to. I'd pull the motor and do a re-ring, if you can....
Old 01-11-2006, 01:37 PM
  #9  
Junior Member
 
zstalker's Avatar
 
Join Date: Aug 2005
Location: Utah
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
while the head is off, see if you can check the valve guide clearance. the seals are important, but even good seals can do only so much when the valve stem is rattling around in the guide....that's where the oil is coming into the port anyway.
~Erik~
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
92firebirdguy
TBI
59
09-01-2016 07:53 AM
69GTOby
Tech / General Engine
40
04-18-2016 02:34 PM
pjsparts
Tech / General Engine
6
09-17-2015 01:28 PM
Bubbajones_ya
Cooling
23
09-14-2015 08:38 PM
m00n420
Firebirds for Sale
0
09-11-2015 02:39 PM



Quick Reply: valve job



All times are GMT -5. The time now is 05:42 PM.