 Engine ID help..., tearing into the mystery engine...PICS |
|
|
|
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. |
|
|
  |
| cha914 |
 Jan 17 2005, 11:50 AM
Post
#1
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus  Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63  |
So, finally getting going on my dads car, he purchased this "newly rebuilt" 2.0L a few years ago. Its been sitting covered in the garage for at least 2 maybe 3 years now so before we throw it in the car I decide to at least pull the heads and see whats really in this thing. From all indications it seems to be a pretty fresh stock rebuild.
It does have real 2.0 heads, it didn't have head gaskets but it did have a single shim inside each chamber (I guess to lower the compression even more, I forgot to measure the thickness)... The pistons have a pretty healthy dish in them that I don't like. What are a set of euros going for these days? Or how bout a set of 96's? Is there a way to tell real german cylinders from others incase I want to get these opened up? and I did some very crude measurements on the cam, is this anywhere close to a real cam? exhaust: .326 lift and 180* duration intake: .326 lift and 225* duration these numbers are no where near being precise, but I am hoping close enough to tell if its a stock cam or not... The car is going to have dual webers and is goinig in a street car, so don' t need anything crazy, I just want this thing to run well. I am probably going to send the heads off to Jake/Len to make sure they were put together right, and maybe change the pistons out to bump the compression...any further suggestions? on to the pics: Attached image(s) 
|
   |
 
|
| cha914 |
Jan 17 2005, 11:51 AM
Post
#2
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
other side...nice dish!
Attached image(s) 
|
|
|
|
| cha914 |
Jan 17 2005, 11:52 AM
Post
#3
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
head
Attached image(s) 
|
|
|
|
| cha914 |
Jan 17 2005, 11:52 AM
Post
#4
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
other head
Attached image(s) 
|
|
|
|
| cha914 |
Jan 17 2005, 11:53 AM
Post
#5
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
other side
Attached image(s) 
|
|
|
|
| cha914 |
Jan 17 2005, 11:54 AM
Post
#6
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
lifter shot...I guess since this engine was put together several years ago these are the good ones?
Attached image(s) 
|
|
|
|
| cha914 |
Jan 17 2005, 11:55 AM
Post
#7
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
top
Attached image(s) 
|
|
|
|
| cha914 |
Jan 17 2005, 11:59 AM
Post
#8
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
cup - I messed with this one so you could see in the cup...looks like a single piece unit...
Attached image(s) 
|
|
|
|
| Joe Ricard |
Jan 17 2005, 12:03 PM
Post
#9
|
|
CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
Looks to me like stock 94 U.S. pistons.... You can double check but the cc of the piston dish will be like 5cc.
You can measure deck hieght and figure out what you compression ratio you have. Of course you need the cc of the combustion chamber too. Looks like the heads were sealing pretty nice. Lose the shim inbetween the cyinder and the head. Just lap the matting surfaces. I know nothing of cams but that seems aweful small (mild). my cam measures .500 lift and 290 duration. That is the other end of the scale. |
|
|
|
| SirAndy |
Jan 17 2005, 12:20 PM
Post
#10
|
||||
|
Resident German Group: Admin Posts: 41,609 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
the pistons look like low compression bus pistons ( (IMG:http://www.914world.com/bbs2/html/emoticons/icon8.gif) ) ... as for the headgasket/shimms ... don't use any headgasket! the shim (to lower the compression) is supposed to go *under the cylinder*, where the cylinder meets the case, not between cylinder and head. anything you put between cylinder & head will make it leak.
don't do that unless you have a Cam that is beneficial for carb-use. with the stock FI-Cam, you'll have no additional power but a *much* worse gas-milage! i'd say get yourself a nice set of euro pistons! (IMG:http://www.914world.com/bbs2/html/emoticons/cool.gif) Andy |
||||
 |
|
||||
| Joe Ricard |
Jan 17 2005, 12:40 PM
Post
#11
|
|
CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
Dibs on the "bus pistons" if you decides to go to with Euro. (IMG:http://www.914world.com/bbs2/html/emoticons/aktion035.gif)
|
|
|
|
| jwalters |
Jan 17 2005, 02:13 PM
Post
#12
|
||
|
Sooo Close....... Group: Members Posts: 1,677 Joined: 14-May 04 From: Huntsville, AL Member No.: 2,068 Region Association: Europe |
(IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) Dude-what is that stuff all caked between the middle lifter valleys??? That looks kinda like JB weld---investigate that please and let us know----- |
||
|
|
|
||
| McMark |
Jan 17 2005, 02:18 PM
Post
#13
|
||
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I think I have a set if you want them. |
||
|
|
|
||
| cha914 |
Jan 17 2005, 09:33 PM
Post
#14
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
Wow...this dropped to the second page fast...the mess between the lifter valleys is just the left over from a mud dobbers nest, not to worry.
I do believe that these are lower compression pistons than the US 2.0L pistons as I saw a set of those recently and they definately have a bigger dish than those did, so you are probably right they are bus pistons I assume. The webers are not an optional issue, thats what this engine came with and I don't have any Djet knowledge, experience or parts... While we are talking about injection, anybody have the specs for a stock cam? these anywhere close? I tried searching but didn't come up with anything solid. McMark..PM me with what you would want for that set of pistons... Thanks for the help... Tony |
|
|
|
| Mark Henry |
Jan 18 2005, 07:18 AM
Post
#15
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Pop off the oil pump and see if there is any numbers on the cam, near the oil pump drive…also see if it’s a bolt on gear.
|
|
|
|
| Walter |
Jan 18 2005, 07:45 AM
Post
#16
|
||
|
Member Group: Members Posts: 70 Joined: 10-August 04 From: The Netherlands, Europe Member No.: 2,499 |
Hello, 0,326" is about 8,28mm cam lift and this is not stock. Stock is even less cam lift. The 0,500" lift s/body mentioned is valve lift. Divide by 1,3 appr. and you get cam lift. The pistons look like the low compression cheap bus pistons to me. I agree, loose them if you can afford it. Otherwise a nice fresh looking engine to me (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) but only accurate mearurements could indicate a complete verdict. We can only look (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif) Greetings, Walter |
||
|
|
|
||
| SLITS |
Jan 18 2005, 10:19 AM
Post
#17
|
|
"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
Way to go Walter. I was wondering when someone was going to mention whether the lift was measured at the lifter or the valve.
|
|
|
|
| Joe Bob |
Jan 18 2005, 10:33 AM
Post
#18
|
|
Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
Yeah...my feeling as well....Bus pistons. Fill the dish with JB Weld and slap em back in.... (IMG:http://www.914world.com/bbs2/html/emoticons/blink.gif)
|
|
|
|
| cha914 |
Jan 18 2005, 10:39 AM
Post
#19
|
|
MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
Ahh...I should have mentioned that this was measured at the lifter using some electronic calipers as a depth gauge while I spun the motor by hand, and we were getting a pretty consistent ~8.3 mm of lift, so I think these numbers are pretty close, but by no means precise.
What is the "proper" way to measure a cam then? I will pull the oil pump next time I am over to check the end of the cam to see if there are any markings. Thanks for the help guys, Tony |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 1st May 2024 - 12:38 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.