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3.4 dohc cam timing - you may want this by Kohburn
Started on: 11-10-2004 11:32 AM
Replies: 80
Last post by: Kohburn on 03-29-2005 04:35 PM
Kohburn
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Report this Post11-10-2004 11:32 AM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
I'm going to plug this into my cnc mill at home after I finish the engraved oil catch can.. may as well sell em to those who want one (after i've made and tested)

the degree marks are the cam degrees - not crank

so the 13 degree retard people like to do is 6.5 cam degrees

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Kohburn
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Report this Post11-10-2004 11:51 AM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
this is really just a preliminary design till I get some more measurements
I'll be redesigning it to allow adjusting screws to apply force to the cams to adjust them with the crank sitting at TDC.
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Rickady88GT
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Report this Post11-10-2004 11:54 AM Click Here to See the Profile for Rickady88GTSend a Private Message to Rickady88GTDirect Link to This Post
The CNC at home? NICE Man what I could do wil a CNC at home
Cool project.
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Kohburn
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Report this Post11-10-2004 01:43 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
redesigned - there is now a 3/4" hex to put a wrench on to adjust the cam timing
its currently adjustable up to 12 degrees advance or retard.. (24 crank degrees each direction)

[This message has been edited by Kohburn (edited 11-10-2004).]

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DILYSI
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Report this Post11-10-2004 02:09 PM Click Here to See the Profile for DILYSISend a Private Message to DILYSIDirect Link to This Post
I would definately be interested in one of those; that would be sweet!
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normsf
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Report this Post11-10-2004 02:54 PM Click Here to See the Profile for normsfClick Here to visit normsf's HomePageSend a Private Message to normsfDirect Link to This Post
hello Nice job, if possible I also may be interested in that tool too. thanks Norm from www.normsfiberglass.com ph. 574-255-7843

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Norm Vandermee

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Kohburn
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Report this Post11-10-2004 02:59 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
looks like interest is growing quickly so this will take priority over the engraved oil catch can.. I'll try to get the prototype built asap
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crzyone
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Report this Post11-10-2004 03:02 PM Click Here to See the Profile for crzyoneSend a Private Message to crzyoneDirect Link to This Post
This would be a hot seller on 60* V-6. Changing the cam timing is a pain in the but the common way. I'd be very interested in this.

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Report this Post11-10-2004 05:17 PM Click Here to See the Profile for StandardClick Here to visit Standard's HomePageSend a Private Message to StandardDirect Link to This Post
Yeah, you should definatly post this over on 60* V6. I'd take one if I had a 3.4TDC...

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FieroReinke
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Report this Post11-10-2004 06:26 PM Click Here to See the Profile for FieroReinkeSend a Private Message to FieroReinkeDirect Link to This Post
You can put me down for one.

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Report this Post11-10-2004 06:47 PM Click Here to See the Profile for wetpoopSend a Private Message to wetpoopDirect Link to This Post
Looks good keep us posted
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Report this Post11-10-2004 08:41 PM Click Here to See the Profile for FIEROPHREKSend a Private Message to FIEROPHREKDirect Link to This Post
 
quote
Originally posted by Kohburn:


I was checking these out and i would have to say go with the second designs cam timing referance marks versus the first design. The first design might cause people to inadvertantly change the lobe separation angle by adjusting the cams in differant directions to get them to line up to the same marks on the middle scale .


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fieromadman
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Report this Post11-10-2004 11:32 PM Click Here to See the Profile for fieromadmanClick Here to visit fieromadman's HomePageSend a Private Message to fieromadmanDirect Link to This Post
ill take one too, id like to be able to adjust my cams at home and that is one hell of a nice hold down tool! Thumbs up to you!
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Kohburn
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Report this Post11-23-2004 09:17 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
my website is up now - http://www.viscoustech.com/

I have it setup so people CAN'T pay till i have the items in hand to ship..

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Kohburn
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Report this Post12-21-2004 09:45 AM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
ok finally - the RSX shifters are done - the cam timing tool is next to get prototyped - i'll start this week

a sample of my work for those wondering

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84Fiero2M4
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Report this Post12-21-2004 09:47 AM Click Here to See the Profile for 84Fiero2M4Send a Private Message to 84Fiero2M4Direct Link to This Post
Looks like you do some nice work.

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[This message has been edited by 84Fiero2M4 (edited 01-05-2005).]

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Report this Post12-23-2004 03:26 PM Click Here to See the Profile for AaronZ34Click Here to visit AaronZ34's HomePageSend a Private Message to AaronZ34Direct Link to This Post
There is very large interest in this over at 60*V6, I say go for it!

I'll be wanting one.

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Kohburn
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Report this Post12-30-2004 07:02 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
alright I got the measurements off the engine today and modeled it up -

this is now the latest design - its been priced for production and can be ready in 1 month
I may start a pre-buy to get these done asap if I can get people interested at 75$ with free shipping

I will be milling the prototype next week for a test fitting before ordering a production run.

[This message has been edited by Kohburn (edited 12-30-2004).]

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Report this Post12-30-2004 07:28 PM Click Here to See the Profile for AaronZ34Click Here to visit AaronZ34's HomePageSend a Private Message to AaronZ34Direct Link to This Post
I'm in, $75 shipped, you have a PM.

Guess I'll be the first to try it out, your reputation rides on me

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Kohburn
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Report this Post01-04-2005 10:16 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
prototyping begins

one component after a quick iriditing bath for corrosion inhibiting

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Report this Post01-04-2005 11:23 PM Click Here to See the Profile for AaronZ34Click Here to visit AaronZ34's HomePageSend a Private Message to AaronZ34Direct Link to This Post
lookin good!
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Report this Post01-05-2005 03:30 AM Click Here to See the Profile for dohcfiendSend a Private Message to dohcfiendDirect Link to This Post
i'd be in too. response to what you said at the top. yep, cams move at 1/2 speed of the crank.
1 suggestion, since the 6.5 will be the most popular use of your tool, put a 6.5 specific mark on it.

[This message has been edited by dohcfiend (edited 01-05-2005).]

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Fie Ro
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Report this Post01-05-2005 06:20 AM Click Here to See the Profile for Fie RoSend a Private Message to Fie RoDirect Link to This Post
Cool! Nice work and good thinking. I would go crazy with a cnc machine if I had one
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Report this Post01-05-2005 01:07 PM Click Here to See the Profile for AaronZ34Click Here to visit AaronZ34's HomePageSend a Private Message to AaronZ34Direct Link to This Post
 
quote
Originally posted by dohcfiend:

i'd be in too. response to what you said at the top. yep, cams move at 1/2 speed of the crank.
1 suggestion, since the 6.5 will be the most popular use of your tool, put a 6.5 specific mark on it.

I agree.

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Kohburn
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Report this Post01-05-2005 01:37 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
problem is .5 degrees is about the width of the actual mark itself

edit: hmm ok i may have an idea for a different location for the timing marks.. after I make the main peice i'll play around with a pencil

[This message has been edited by Kohburn (edited 01-05-2005).]

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XzotikGT
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Report this Post01-05-2005 04:43 PM Click Here to See the Profile for XzotikGTClick Here to visit XzotikGT's HomePageSend a Private Message to XzotikGTDirect Link to This Post
I am in too. Let me know the details.
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Report this Post01-05-2005 08:00 PM Click Here to See the Profile for Matt HawkinsSend a Private Message to Matt HawkinsDirect Link to This Post
I will take one when they become available. Do you need payment now? Let me know. Thanks.

Matt

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Kohburn
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Report this Post01-05-2005 09:58 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
no payments yet - not accepting money for pre-orders till i have tested the function of the prototype.. I'll update this thread with all the info as it goes along - sittign here watching the mill run as i type so I may be testing this weekend..
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Kohburn
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Report this Post01-08-2005 08:29 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
milling done (except timing marks) - next to test how well it works

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Report this Post01-08-2005 11:12 PM Click Here to See the Profile for mrfixit58Send a Private Message to mrfixit58Direct Link to This Post
That is SWEET!!

Bump

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Kohburn
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Report this Post01-10-2005 04:06 PM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
any tips for getting the cam pulley bolt lose? I'm still waiting on my aircrompressor from harbor freight so i can use an impact gun on it - bolts are tight turning them is turning over the engine
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Report this Post01-10-2005 04:56 PM Click Here to See the Profile for TaurusThugSend a Private Message to TaurusThugDirect Link to This Post
maybe im just unfamiliar with the 3.4 but how does this tool work?

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Report this Post01-10-2005 05:39 PM Click Here to See the Profile for ltlfrariClick Here to visit ltlfrari's HomePageSend a Private Message to ltlfrariDirect Link to This Post
 
quote
Originally posted by Kohburn:

any tips for getting the cam pulley bolt lose? I'm still waiting on my aircrompressor from harbor freight so i can use an impact gun on it - bolts are tight turning them is turning over the engine

I made the cam holding tool, stil turned. I nthe end I used the impact gun. 30 seconds and they were off versus 2 days of messing around with the 'correct' tools.

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Visit the NC Fieros website at TarheelFieros.org

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Kohburn
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Report this Post01-11-2005 08:43 AM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
 
quote
Originally posted by TaurusThug:

maybe im just unfamiliar with the 3.4 but how does this tool work?

the cam pulleys on the 3.4 TDC are not keyed.. they are essentially just held on by a bolt.. so to time the cams you have to set the crank at top dead center and use a tool that holds a flatspot on the cams in place then tighten the bolts again.. this tool allows you to set degrees of advance or retard before tightening that bolt.

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Kohburn
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Report this Post01-19-2005 06:45 AM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
just a little update with something prettier after engraving and painting (the production version would be anodized not painted)
I'm currently figuring out how to flow a bright pigment into the engraved degree markes..

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Report this Post01-19-2005 09:00 AM Click Here to See the Profile for Matt HawkinsSend a Private Message to Matt HawkinsDirect Link to This Post
Fantastic work. I have always had to use the impact on the cam bolts. It is the easiest way.

Have you used the tool yet? I am anxious to get one of these. Thanks for all the great work.

Matt

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Kohburn
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Report this Post01-19-2005 09:25 AM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
Unless i get around to it sonner it will be getting tested next weekend, and pending any revisions would be available for sale a month after
(after a successful testing i'll be accepting pre-buy orders, but not untill I know for sure the design doesn't need changes)
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Report this Post01-19-2005 11:10 AM Click Here to See the Profile for ErikSend a Private Message to ErikDirect Link to This Post
count me in for one
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Kohburn
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Report this Post02-02-2005 08:22 AM Click Here to See the Profile for KohburnSend a Private Message to KohburnDirect Link to This Post
Alright guys - I decided to relocate the timing marks to the top to make it easier to see while installed
the production run has been ordered and they are up for pre-buy sale at www.viscoustech.com

estimated shipping date is the first weekend of march

[This message has been edited by Kohburn (edited 03-25-2005).]

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Report this Post02-04-2005 08:28 AM Click Here to See the Profile for soloyoshSend a Private Message to soloyoshDirect Link to This Post
bought mine thanks... any idea when they will be ready?
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