Page 1 of 2 12 LastLast
Results 1 to 20 of 30

Thread: valve guides

  1. #1
    Garrett booster
    Join Date
    Jul 2011
    Location
    Rexburg, Idaho
    Posts
    67

    valve guides

    is it neccesary to replace the valve guides ? engine has 116 k on it..

  2. #2
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
    Join Date
    Aug 2008
    Location
    SoMd
    Posts
    6,178

    Re: valve guides

    The only way to know if there worn beyond spec is to measure them.

  3. #3
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: valve guides

    From the wealth of information thus far provided, in no particular order, the answers to all your questions about valve guides are, maybe, no, yes, sometimes, often, no, no, yes.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  4. #4
    Garrett booster
    Join Date
    Jul 2011
    Location
    Rexburg, Idaho
    Posts
    67

    Re: valve guides

    ok so where do i find out the spec's for it?

  5. #5
    Supporting Member Turbo Mopar Contributor zin's Avatar
    Join Date
    May 2006
    Location
    ca
    Posts
    4,479

    Re: valve guides

    Quote Originally Posted by lancerman23 View Post
    ok so where do i find out the spec's for it?
    The factory service manuals should have this info.

    If in doubt, replace. At 116K they are probably going to need replacing in the near future. So, if you plan on keeping the car for an extended period of time, replace them, if for no other reason than peace of mind.

    Of course, it is possible that they will spec out just fine, but with the mileage, probably not.

    Once you develop a "feel" for it, you can remove the springs, etc, and wiggle the valve when it is a little ways off the seat to tell if they are quite worn, if they are close to OK, this method is a bit crude, but if you want to do a quick check you can try it. Unfortunately, one can't spec an amount of "feel" and even then you'd need the FSM to tell you for sure...

    Hope this helps!

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

    Bad laws are the worst sort of tyranny.
    - Edmund Burke

  6. #6
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: valve guides

    Also, where are we?

    If we're at "I'm doing a full restore on my car, everything is apart, I'm getting new valves, seats, port job... ... ..." then yes, get new guides.

    If we're at "This is my DD and I'm seeing a slight blue puff once in a while and am insanely confident that it's not my PCV valve or Turbo" then no, don't.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  7. #7
    Hot Certified Christians at TD! Turbo Mopar Staff Directconnection's Avatar
    Join Date
    Dec 2005
    Location
    Nunya-Maine
    Posts
    6,027

    Re: valve guides

    Mine needed new guides on the exhaust side... the engine had 126,000 on it, but the intakes were fine. I've been hearing that it's typical on the exhausts with mileage.

    Elgin (I think it was when I researched into it) makes the guides, but you must buy $600 worth... I could have made my own, but much less of a hassle to simply buy directly from FWD-P as they have them in stock, and at a VERY fair price, too.

    TU and FWD-P also have a majority of the hard to find seals and gaskets.... they are our vendors of choice.
    Quote Originally Posted by 22mopar
    have a look at my feedback on the forum. all positive.

    Steve

    '90 VNT competition package Shadow - T-III SC6262 conversion/restoration
    '91 Spirit R/T - white
    '91 Spirit R/T - white
    '92 IROC R/T - red
    '67 Barracuda 273 now, 440/727 awaits....

  8. #8
    Garrett booster
    Join Date
    Jul 2011
    Location
    Rexburg, Idaho
    Posts
    67

    Re: valve guides

    i am at.. this engine had a bad rod knock ..so the engine is apart and doing everything.. head ported and polished, intake and exhaust mani to match, 62mm turbo, +40's injecotrs, and the list goes one.. i just dont want to miss anything while it's apart.. also where the freak to do i find these FSM's? i've got one from ebay but it's electircal only..

  9. #9
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: valve guides

    Only got specs for the 8 valve here, gives it at the end of the section for that engine type. Given as stem to guide clearance. Exhaust clearance is about double intake, I guess for thermal expansion, so cheapskates might use worn intake guides in the exhaust side
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  10. #10

    Re: valve guides

    Give me a minute and I'll post up details for the TIII. Gotta find my details.
    [SIZE="3"] [B]Jon Trotter[/B][/SIZE] [B]1985[/B] Dodge Shelby Charger, Currently decommissioned [B]1987[/B] Shelby GLHS, #937 [B]1987[/B] Shelby Lancer, #628 [QUOTE=Reeves;587010]I can be ready. Please send pics of wife. _____DodgeZ add comments here______[/QUOTE]

  11. #11
    Garrett booster
    Join Date
    Jul 2011
    Location
    Rexburg, Idaho
    Posts
    67

    Re: valve guides

    Quote Originally Posted by minigts View Post
    Give me a minute and I'll post up details for the TIII. Gotta find my details.
    THAT WOULD BE EXTREMELY HELPFUL.. THANKS GUYS!!

  12. #12
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanmanČ's Avatar
    Join Date
    Dec 2005
    Location
    Abbotsford, BC
    Posts
    44,167

    Re: valve guides

    Ditto, I find out most times, the exhaust go due to the heat.

    I had some made by my new head porter and still came out cheaper than buying new one's.
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

  13. #13

    Re: valve guides

    http://minigts.com/servicemanual/93_Diagrams/engine/

    Let me know if you need more pages. All the pages should be uploaded in a few minutes.
    Last edited by minigts; 07-06-2011 at 06:31 PM.
    [SIZE="3"] [B]Jon Trotter[/B][/SIZE] [B]1985[/B] Dodge Shelby Charger, Currently decommissioned [B]1987[/B] Shelby GLHS, #937 [B]1987[/B] Shelby Lancer, #628 [QUOTE=Reeves;587010]I can be ready. Please send pics of wife. _____DodgeZ add comments here______[/QUOTE]

  14. #14
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: valve guides

    it's the page or two before that in my '90 manual which doesn't have the TIII twin cam specs, only 91-93 have I think.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  15. #15

    Re: valve guides

    Sorry, wrong path. Updated with the 93 pages link. Pages 38 and 39.
    [SIZE="3"] [B]Jon Trotter[/B][/SIZE] [B]1985[/B] Dodge Shelby Charger, Currently decommissioned [B]1987[/B] Shelby GLHS, #937 [B]1987[/B] Shelby Lancer, #628 [QUOTE=Reeves;587010]I can be ready. Please send pics of wife. _____DodgeZ add comments here______[/QUOTE]

  16. #16
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: valve guides

    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  17. #17
    Hot Certified Christians at TD! Turbo Mopar Staff Directconnection's Avatar
    Join Date
    Dec 2005
    Location
    Nunya-Maine
    Posts
    6,027

    Re: valve guides

    Quote Originally Posted by turbovanman View Post
    Ditto, I find out most times, the exhaust go due to the heat.

    I had some made by my new head porter and still came out cheaper than buying new one's.
    He did you a favor then, because at $9 each... the solid bronze is almost that, not to mention the labor. making guides is easy, but not as easy to make perfectly concentric, which is VERY important, otherwise you need to sink the valves. Chucking in a lathe and drilling the hole doesn't make for a straight and true guide as a drill walks off center the further it drills into a hole.
    Quote Originally Posted by 22mopar
    have a look at my feedback on the forum. all positive.

    Steve

    '90 VNT competition package Shadow - T-III SC6262 conversion/restoration
    '91 Spirit R/T - white
    '91 Spirit R/T - white
    '92 IROC R/T - red
    '67 Barracuda 273 now, 440/727 awaits....

  18. #18
    turbo addict
    Join Date
    Jul 2007
    Location
    Niagara Falls, ON
    Posts
    7,548

    Re: valve guides

    That's when you use a miniature bar cutter .... for shadetree points ... made out of a chip of piston ring tacked to an old small valve stem ...
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  19. #19
    Hot Certified Christians at TD! Turbo Mopar Staff Directconnection's Avatar
    Join Date
    Dec 2005
    Location
    Nunya-Maine
    Posts
    6,027

    Re: valve guides

    Not sure what you're talking about bud! But what I was hinting at, is this: every once in a while, we use whatever guides we can source for an odd or obsolete engine. (or for cost cutting reasons per the customer) When the guide is not concentric to the outside of the guide, then the centerline of the valve stem ends up being offest. because of this, the valve job ends up getting way out of whack, and/or you have to aggressively re-cut the seats until you get a decent margin back on the 45. We've had to press back out new guides because of this issue. Also, drilling a hole for the guide... the drill will walk and wander... picture it drilling a path in the form of an "s"

    The guides that FWD sells were spot on and needed only *minimal* honing to bring to size.... they were almost right to size as is after pressing in.

    Some bronze guides for the T-III surely would be nicer though...
    Quote Originally Posted by 22mopar
    have a look at my feedback on the forum. all positive.

    Steve

    '90 VNT competition package Shadow - T-III SC6262 conversion/restoration
    '91 Spirit R/T - white
    '91 Spirit R/T - white
    '92 IROC R/T - red
    '67 Barracuda 273 now, 440/727 awaits....

  20. #20
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
    Join Date
    Aug 2008
    Location
    SoMd
    Posts
    6,178

    Re: valve guides

    what are the stockers composed of ?

Page 1 of 2 12 LastLast

Similar Threads

  1. Should i replace valve guides?
    By CNH320 in forum Engine - Block, Piston, Heads, Intakes
    Replies: 14
    Last Post: 01-24-2011, 04:38 AM
  2. I'm thinking bad valve seals or guides...
    By Username in forum Engine - Block, Piston, Heads, Intakes
    Replies: 12
    Last Post: 07-15-2009, 11:32 PM
  3. Valve guides in a swirl head.
    By black86glhs in forum Engine - Block, Piston, Heads, Intakes
    Replies: 2
    Last Post: 12-04-2008, 03:47 AM
  4. Valve Guides
    By thx138 in forum Engine - Block, Piston, Heads, Intakes
    Replies: 7
    Last Post: 06-18-2008, 09:46 PM
  5. valve guides
    By raccoon in forum Engine - Block, Piston, Heads, Intakes
    Replies: 8
    Last Post: 09-22-2007, 12:44 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •