 Type IV rebuild / refresh thread. Nothing ground breaking., Changing cam in low mileage rebuit 1.8, making it a little hotter! Oh yea! |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| Mueller |
 Jun 29 2016, 02:47 PM
Post
#1
|
|
914 Freak!  Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
 |
I popped the heads off in order to remove the broken exhaust studs (one per cylinder)
(I wrote broken head studs....I meant exhaust studs) Stock camshaft has some strange wear patterns on it which might be part of the previous owner problems with the motor. Cam will be a 9600 grind from Rabys old store Intake planned is stock L-Jet, however I can be swayed to install Megasquirt (plenum or ITB) since I already have the Megasquirt. Exhaust is older European Racing Header. |
   |
 
|
  |
Replies
| maf914 |
Jul 1 2016, 07:11 AM
Post
#2
|
|
Not a Guru! Group: Members Posts: 3,049 Joined: 30-April 03 From: Central Florida Member No.: 632 Region Association: None
|
It looks like the cam specs are for a split duration cam, with the lift and duration for the exhaust valve increased to overcome the more restrictive exhaust port flow (relative to the better flowing intake port). At least that is what I recall from earlier tech threads from 914 World and ShopTalkForums.
|
|
|
|
Posts in this topic
Mueller Type IV rebuild / refresh thread. Nothing ground breaking. Jun 29 2016, 02:47 PM
stugray you can measure the valve travel without even taki... Jun 29 2016, 02:58 PM
Mueller
you can measure the valve travel without even tak... Jun 29 2016, 03:06 PM OU812 Did you try the search function ?
You will find m... Jun 29 2016, 02:59 PM Mueller
Did you try the search function ?
You will find ... Jun 29 2016, 03:49 PM OU812
Did you try the search function ?
You will find... Jun 29 2016, 05:49 PM John Jentz Jake doesn't sell parts anymore, only turnkey ... Jun 29 2016, 03:11 PM Mueller
Jake doesn't sell parts anymore, only turnkey... Jun 29 2016, 03:48 PM OU812 I think Jake uses the search function .
Be like J... Jun 29 2016, 03:16 PM rhodyguy Saw that one coming 1/2 hour ago. Funny. No quotes... Jun 29 2016, 03:21 PM rhodyguy Unless somebody had their NEW cam read, those deta... Jun 29 2016, 04:20 PM Chris H. If Jake doesn't see this just call Charles at ... Jun 29 2016, 06:05 PM r_towle Mike,
Go to Elgin camshafts and look at what he s... Jun 29 2016, 06:47 PM Valy How long did the motor run with broken head studs?... Jun 29 2016, 08:44 PM Mueller Exhaust studs broken, not head studs..... Jun 29 2016, 10:01 PM r_towle
Exhaust studs broken, not head studs.....
You ar... Jun 29 2016, 10:13 PM stugray
Exhaust studs broken, not head studs.....
maybe... Jun 29 2016, 10:58 PM Mueller I called LN Engineering, they found the specs for ... Jun 30 2016, 10:57 AM stugray
I called LN Engineering, they found the specs for... Jun 30 2016, 11:23 AM Mark Henry
I called LN Engineering, they found the specs for... Jun 30 2016, 01:22 PM stugray
I called LN Engineering, they found the specs for... Jun 30 2016, 01:53 PM G e o r g e a thread over on the samba Jake references a web c... Jun 30 2016, 04:50 PM Mueller
a thread over on the samba Jake references a web ... Jun 30 2016, 06:38 PM Jake Raby The 9600 is a straight pattern version of the 9610... Jul 1 2016, 07:50 AM Mueller
The 9600 is a straight pattern version of the 961... Jul 1 2016, 07:51 AM stugray
The 9600 is a straight pattern version of the 961... Jul 1 2016, 08:22 AM Mark Henry Jake is it an FI cam?
Mike said he was thinking L... Jul 1 2016, 07:53 AM Mueller
Jake is it an FI cam?
Mike said he was thinking ... Jul 1 2016, 10:11 AM Mark Henry
....is the DVD for building Type IVs available an... Jul 1 2016, 11:45 AM r_towle Yup, just build it.
Take your time, learn about ho... Jul 1 2016, 01:08 PM Mueller Curious if I should be looking for a cheap single ... Jul 1 2016, 06:18 PM Mueller I ran the part numbers on the head and the cylinde... Jul 1 2016, 10:08 PM Valy That cam is a paperweight. Jul 1 2016, 11:49 PM r_towle
That cam is a paperweight.
With the gear they ma... Jul 5 2016, 11:47 AM Mueller Both heads will need a little machine work to clea... Jul 5 2016, 11:11 AM JOEPROPER No head gaskets? Is that right? I didn't kno... Jul 5 2016, 12:48 PM Mueller Do I have to buy a new gear for the cam or can I r... Jul 9 2016, 07:10 PM jcd914
Do I have to buy a new gear for the cam or can I ... Jul 9 2016, 11:34 PM Valy Reuse. Jul 9 2016, 09:19 PM Mark Henry Don't used straight cut gears, my great big en... Jul 9 2016, 11:54 PM DavidSweden
Use the extra thrust bearing on the cam. BTW type... Jul 10 2016, 10:29 AM Mueller
Don't used straight cut gears, my great big e... Jul 10 2016, 10:41 AM Tbrown4x4 Only 1 half of a cam bearing has a thrust surface.... Jul 10 2016, 11:12 AM Mark Henry On the double thrust cam bearing couple ways to go... Jul 10 2016, 11:26 AM Mueller Looked at the bearings I took out of the motor, ma... Jul 10 2016, 11:32 AM Mark Henry If that used DT bearing has a copper face and is i... Jul 10 2016, 12:04 PM Mueller
If that used DT bearing has a copper face and is ... Jul 10 2016, 12:22 PM rdauenhauer
Do I have to buy a new gear for the cam or can I ... Jul 10 2016, 09:57 PM McMark
Do I have to buy a new gear for the cam or can I... Jul 11 2016, 07:19 AM colingreene I have a straight cut cam gear, its not honestly a... Jul 11 2016, 09:39 AM Mueller
I have a straight cut cam gear, its not honestly ... Jul 11 2016, 10:01 AM Mueller Still trying to find some input on whether or not ... Jul 11 2016, 09:22 PM McMark Induction is easy to change. Run the L-Jet and se... Jul 11 2016, 09:28 PM Mike Bellis Run the L Jet and put a piggy back system or full ... Jul 11 2016, 09:32 PM colingreene the right and best way to do modern ish fuel injec... Jul 11 2016, 09:42 PM Mueller
the right and best way to do modern ish fuel inje... Jul 11 2016, 10:26 PM colingreene You might want to talk to Mark on here about it, o... Jul 11 2016, 11:12 PM McMark The cam assembly lube sticks around for awhile. A... Jul 12 2016, 06:14 AM jim_hoyland Any updates Mike ? I am looking at upgrading my L-... Aug 11 2016, 12:22 PM Mueller Finally getting back to my engine.
I picked up ne... Oct 18 2016, 09:08 AM Mueller Bump for spring recommendations!
Also, any wo... Oct 26 2016, 11:08 AM Mueller Let's see if this one gets ignored as well :) ... Mar 7 2017, 01:55 PM Mark Henry
Let's see if this one gets ignored as well :)... Mar 7 2017, 01:56 PM Mueller Time to start working on the engine again.....
Du... Jun 7 2017, 07:03 PM Vacca Rabite
Time to start working on the engine again.....
D... Jun 8 2017, 07:06 AM Mueller
Time to start working on the engine again.....
... Jun 9 2017, 12:45 PM McMark I think that cam would prefer to have dual or HD s... Jun 8 2017, 07:23 AM Mueller
I think that cam would prefer to have dual or HD ... Jun 9 2017, 12:43 PM Mueller I just did a quick measurement using my HF digital... Aug 11 2017, 12:02 AM McMark More exhaust flow to compensate for the type 4s po... Aug 11 2017, 08:41 AM Mueller
More exhaust flow to compensate for the type 4s p... Aug 11 2017, 11:29 AM Keith914 Back to your original question, I suggest you eval... Aug 11 2017, 11:59 AM Mueller
Back to your original question, I suggest you eva... Aug 15 2017, 12:43 AM McMark Did you want a 26mm pump? I can send one your way... Aug 15 2017, 07:04 AM Mueller Started to clean the engine again to get it ready ... Oct 14 2017, 08:20 PM Mueller Megasquirt question...really EDIS related. Older M... Nov 7 2017, 12:15 PM 76-914 That's definitely above my pay grade. :confus... Nov 7 2017, 05:59 PM McMark I'm pretty sure you can just set up your MegaS... Nov 7 2017, 10:24 PM Mueller
I'm pretty sure you can just set up your Mega... Nov 7 2017, 11:58 PM JamesM
I'm pretty sure you can just set up your Meg... Nov 8 2017, 12:54 AM McMark
I'm pretty sure you can just set up your Meg... Nov 8 2017, 10:49 AM Mueller Thanks Mark and James.
So i do not need to upgrad... Nov 8 2017, 11:49 AM Dr Evil I may have an EDIS4 if you want it. Nov 9 2017, 12:27 PM Mueller
I may have an EDIS4 if you want it.
Thanks, I e... Nov 9 2017, 12:58 PM Mueller Silly question, I need to buy or make an engine st... Nov 15 2017, 01:28 PM 914werke Perhaps these might help? Nov 15 2017, 07:18 PM McMark I haven't worked with a MegaSquirt unit yet, s... Nov 16 2017, 08:01 AM Mikedrevguy Look forward to seeing this all come together. Goo... Nov 16 2017, 08:29 AM Mueller Finally, some work related to my 914...
Removed t... Dec 25 2017, 02:14 PM Mueller Cleaned my engine, also deburred it a little bit a... Dec 28 2017, 07:54 PM Mueller In case it is not in Raby's Type IV assembly D... Jan 11 2018, 09:51 AM Mueller Bump for:
What sealant do people use and recomme... Jan 12 2018, 02:47 PM 76-914 Mike, it's in there somewhere but IIRC it was ... Jan 12 2018, 03:57 PM Mueller
Mike, it's in there somewhere but IIRC it was... Jan 12 2018, 04:21 PM holtby914 Did you order the DVD recently? I'd love to g... Jan 12 2018, 06:31 PM Mueller
Did you order the DVD recently? I'd love to ... Jan 13 2018, 11:39 AM Mueller Not sure if this qualifies for being cheap or reso... Jan 21 2018, 02:32 PM McMark :thumbsup: Lookin' good! Jan 22 2018, 07:57 AM Mueller Dominic was nice enough to send me a straight engi... Jan 27 2018, 11:03 PM |
30 User(s) are reading this topic (30 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 22nd November 2024 - 10:43 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.