Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> I'm lost and need some help
adam_wakeley
post Aug 26 2012, 03:33 PM
Post #1


Newbie
*

Group: Members
Posts: 7
Joined: 12-July 12
From: Louisville, KY
Member No.: 14,661
Region Association: None
This is kind of lengthy, but I want to ensure I give an accurate description of all details I'm aware of.

The 914 I am working on for a friend of mine had been previously worked on by another guy who didnt finish. So I am picking up the pieces and trying to move forward.

The previous guy had converted to dual weber carbs from fuel injection on this 2.0 with a hexbar linkage kit. He also swapped the original distributor for a brand new non vacuum unit from pelican. It also has a condenser which original did not. I have set basic dwell per Haynes manual. Side note, I'm getting shocked every time I touch negative side of coil. Have never seen this on any of my other vehicles.

I have got engine back in car and driven probably 30 miles off and on. Car runs real good when running. When i park it and try to start it hot it will not start. The starter, battery, and coil are all new. I have bypassed the seatbelt warning system. Car will crank a few times, but very labored and still not fire. I have fuel, spark, and air. I have found TDC marks and timed engine a few degrees BTDC, but nothing exact. With engine at TDC per impeller/flywheel marks, the dist. rotor points at #4 cyl. and #1 plug wire. Valves have also been adjusted per Haynes manual.

I know this is probably not related, but when leaving a stop in first gear there is a few very loud bangs as car drives away. I noticed the swaybar links need replacement as one is missing but cannot figure that this is my problem. I have replaced all shift linkage bushings, as well as ball cup and shift rod head since they were completely missing. New bolts in driveshafts as well and they are tight. All trans mounts are good shape and tight as is the front engine mounts.

If I think of anymore details I will include them, thanks for any insight, and sorry for being so long winded.

Adam (IMG:style_emoticons/default/headbang.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JawjaPorsche
post Aug 26 2012, 04:32 PM
Post #2


Advanced Member
****

Group: Members
Posts: 3,463
Joined: 23-July 11
From: Clayton, Georgia
Member No.: 13,351
Region Association: South East States
I was going to say check your valve adjustment but you already said that. You have come to right place. There are a lot of smart people on this forum me not Included. Good luck.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
sixnotfour
post Aug 26 2012, 04:46 PM
Post #3


914 Wizard
**********

Group: Members
Posts: 10,430
Joined: 12-September 04
From: Life Elevated..planet UT.
Member No.: 2,744
Region Association: Rocky Mountains
body to engine ground
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
GeorgeRud
post Aug 26 2012, 04:49 PM
Post #4


Advanced Member
****

Group: Members
Posts: 3,725
Joined: 27-July 05
From: Chicagoland
Member No.: 4,482
Region Association: Upper MidWest
Is the transmission ground strap connected and are the connections clean? Often it gets forgotten, and you're trying to ground the engine by a very few, small points.

After all these years, the original starter circuit is also getting weak and may need replacement. You could try checking is you're getting a good 12 volts to the starter solenoid when you're cranking. Some folks have added a solenoid to directly connect the starter to the battery, so the original circuits only have to energize a small solenoid rather than the one on the starter.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ellisor3
post Aug 26 2012, 06:41 PM
Post #5


HPWhore
***

Group: Members
Posts: 811
Joined: 23-October 08
From: Fleming Island, Florida
Member No.: 9,683
Region Association: South East States
(IMG:style_emoticons/default/agree.gif) I went round and round for a week, replaced everything and then discovered the ground strap was not connected well.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dave_Darling
post Aug 26 2012, 08:59 PM
Post #6


914 Idiot
**********

Group: Members
Posts: 14,986
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California
The loud bang noises are likely sheared engine mounts, if this is a 73+ side-shifter. That's what my 74 did, at least.

How's the fuel pressure?

--DD
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
type47
post Aug 27 2012, 06:59 AM
Post #7


Viermeister
****

Group: Members
Posts: 4,254
Joined: 7-August 03
From: Vienna, VA
Member No.: 994
Region Association: MidAtlantic Region
QUOTE(Dave_Darling @ Aug 26 2012, 06:59 PM) *

How's the fuel pressure?


doesn't he have carbs? ... but fuel pressure is important with carbs...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
adam_wakeley
post Aug 27 2012, 08:20 AM
Post #8


Newbie
*

Group: Members
Posts: 7
Joined: 12-July 12
From: Louisville, KY
Member No.: 14,661
Region Association: None
I am sure i installed ground strap when I installed engine. But I guess it won't hurt to double check when I get home. I do have carbs, and the fuel pump is a new one that is suggested by Pelican for carbs. One thing that had me thinking after I gave up last night was that I think I remember an extra stud on the new starter. Could this possibly be for a ground? Seems like most of the ones I've dealt with ground through the housing of starter. I will check all your suggestions after work today. May "over ground" everything just to rule out grounds.

Thanks for all help so far,
Adam
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
adam_wakeley
post Aug 27 2012, 08:43 PM
Post #9


Newbie
*

Group: Members
Posts: 7
Joined: 12-July 12
From: Louisville, KY
Member No.: 14,661
Region Association: None
You guys were dead on with the ground strap. Seems like when I installed engine I remember thinking next time im under the car it needs to be attached. Well guess I didnt remember the next time.

Still no idea on the banging. Seems like could possibly be cv joints? Only happens in first and second gear under slightly heavier than normal acceleration. As said before, all mounts are good and have new hardware.

Adam
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dave_Darling
post Aug 27 2012, 09:01 PM
Post #10


914 Idiot
**********

Group: Members
Posts: 14,986
Joined: 9-January 03
From: Silicon Valley / Kailua-Kona
Member No.: 121
Region Association: Northern California
Check the motor mounts again. They can look fine but be sheared completely through--trust me on that. Try jacking up on the engine; it shouldn't move much at all. Mine lifted right up...

--DD
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
76-914
post Aug 28 2012, 08:19 AM
Post #11


Repeat Offender & Resident Subaru Antagonist
**********

Group: Members
Posts: 13,502
Joined: 23-January 09
From: Temecula, CA
Member No.: 9,964
Region Association: Southern California
Grab the drive shafts and try to slide them length wise. If it makes a noise when sliding them then replace the CV. Probably an inner one.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 16th May 2024 - 03:58 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...