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 )

2 Pages V < 1 2  
Reply to this topicStart new topic
> /6 loud noise after rebuild, with video
Mark Henry
post Jul 15 2015, 10:38 AM
Post #21


that's what I do!
***************

Group: Members
Posts: 20,065
Joined: 27-December 02
From: Port Hope, Ontario
Member No.: 26
Region Association: Canada



Normal, that's not the cause of the noise.

The ramps are subject to wear and the old ones were known for pitting, but not noise.

The main noise would be from tensioner issues. slack chain. etc.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tornik550
post Jul 15 2015, 11:08 AM
Post #22


Senior Member
***

Group: Members
Posts: 1,248
Joined: 29-January 07
From: Ohio
Member No.: 7,486
Region Association: None



Could it still be the tensioners even though the chain is very tight currently? I am almost not able to push the chain up or down at all- essentially no slack.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mskala
post Jul 15 2015, 12:38 PM
Post #23


R
***

Group: Members
Posts: 1,925
Joined: 2-January 03
From: Massachusetts
Member No.: 79
Region Association: None



QUOTE(tornik550 @ Jul 15 2015, 01:08 PM) *

Could it still be the tensioners even though the chain is very tight currently? I am almost not able to push the chain up or down at all- essentially no slack.


That's about right for tension. What made you sure it was this side? On my
car I can't pinpoint noises that well. Check other side?

I would also take the opportunity to get the idler wheels with the long bushing
and lose the spacer. Some people think that the geometry was part of the
failed tensioner problem.

If it's not valves or tensioners, maybe check if the fan is rubbing.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tornik550
post Jul 15 2015, 07:24 PM
Post #24


Senior Member
***

Group: Members
Posts: 1,248
Joined: 29-January 07
From: Ohio
Member No.: 7,486
Region Association: None



I went over everything again. I found that I had the two red arrowed ramps switched. They are pointing the right way but they are in the wrong position.

I never noticed that there was a difference in the ramps. Is it nexcesary to change them? Is there really that much of a difference in the ramps? Could that be causing my issue?


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mark Henry
post Jul 15 2015, 09:20 PM
Post #25


that's what I do!
***************

Group: Members
Posts: 20,065
Joined: 27-December 02
From: Port Hope, Ontario
Member No.: 26
Region Association: Canada



QUOTE(tornik550 @ Jul 15 2015, 09:24 PM) *

I went over everything again. I found that I had the two red arrowed ramps switched. They are pointing the right way but they are in the wrong position.

I never noticed that there was a difference in the ramps. Is it nexcesary to change them? Is there really that much of a difference in the ramps? Could that be causing my issue?

Oh wow really ? (IMG:style_emoticons/default/blink.gif)
I thought of that and then said nahhh.... can't be....

Yes, it is very important the brown one is thicker IIRC.
You have to switch them to the correct order.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mskala
post Jul 16 2015, 04:54 AM
Post #26


R
***

Group: Members
Posts: 1,925
Joined: 2-January 03
From: Massachusetts
Member No.: 79
Region Association: None



In your pic I couldn't have said that rasmp was brown, looked black to me.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mark Henry
post Jul 16 2015, 05:16 AM
Post #27


that's what I do!
***************

Group: Members
Posts: 20,065
Joined: 27-December 02
From: Port Hope, Ontario
Member No.: 26
Region Association: Canada



QUOTE(mskala @ Jul 16 2015, 06:54 AM) *

In your pic I couldn't have said that rasmp was brown, looked black to me.

That's what I thought....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tornik550
post Jul 16 2015, 05:31 AM
Post #28


Senior Member
***

Group: Members
Posts: 1,248
Joined: 29-January 07
From: Ohio
Member No.: 7,486
Region Association: None



QUOTE(mskala @ Jul 16 2015, 06:54 AM) *

In your pic I couldn't have said that rasmp was brown, looked black to me.


I hate to say it but it looks black just cause of the lighting. I took a different picture. It was hard to get a good picture of all three ramps with the engine in the car. The picture is bad however it shows the three colors (in the wrong positions).


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Luke M
post Jul 18 2015, 07:22 AM
Post #29


Senior Member
***

Group: Members
Posts: 1,380
Joined: 8-February 05
From: WNY
Member No.: 3,574
Region Association: North East States



QUOTE(tornik550 @ Jul 15 2015, 06:24 PM) *

I went over everything again. I found that I had the two red arrowed ramps switched. They are pointing the right way but they are in the wrong position.

I never noticed that there was a difference in the ramps. Is it nexcesary to change them? Is there really that much of a difference in the ramps? Could that be causing my issue?



It's easy to put the ramps in the wrong location/direction that's why I asked about it.
So did you swap them around and run it ?
Any more noise ?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tornik550
post Jul 18 2015, 08:38 AM
Post #30


Senior Member
***

Group: Members
Posts: 1,248
Joined: 29-January 07
From: Ohio
Member No.: 7,486
Region Association: None



QUOTE(Luke M @ Jul 18 2015, 09:22 AM) *

QUOTE(tornik550 @ Jul 15 2015, 06:24 PM) *

I went over everything again. I found that I had the two red arrowed ramps switched. They are pointing the right way but they are in the wrong position.

I never noticed that there was a difference in the ramps. Is it nexcesary to change them? Is there really that much of a difference in the ramps? Could that be causing my issue?



It's easy to put the ramps in the wrong location/direction that's why I asked about it.
So did you swap them around and run it ?
Any more noise ?


When I put the engine together I did not replace the ramps. I thought now was a good time to replace with new ones so I haven't moved them yet. The new ones should arrive one Monday. I'll post a response as soon as I get them in.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
dlestep
post Jul 18 2015, 01:38 PM
Post #31


I am smilin'...
***

Group: Members
Posts: 890
Joined: 15-January 08
From: Sunrise Florida
Member No.: 8,573
Region Association: South East States



go through procedure for TDC, place pin in cam sprocket to keep it from moving.
replace your chain rails and ensure that your spacer is behind the rightside
tensioner, aligning the chains parallel.
~
Pressure fed kit comes with new cover plates, hoses and tensioners.
Just trying to help, Good luck with your problem...
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tornik550
post Jul 18 2015, 01:54 PM
Post #32


Senior Member
***

Group: Members
Posts: 1,248
Joined: 29-January 07
From: Ohio
Member No.: 7,486
Region Association: None



QUOTE(dlestep @ Jul 18 2015, 03:38 PM) *

go through procedure for TDC, place pin in cam sprocket to keep it from moving.
replace your chain rails and ensure that your spacer is behind the rightside
tensioner, aligning the chains parallel.
~
Pressure fed kit comes with new cover plates, hoses and tensioners.
Just trying to help, Good luck with your problem...
Attached Image



Interesting point. I thoroughly measured for proper alignment when I first installed everything however I had to remove the heads. I assumed that the alignment would be the same and I did not recheck. I used the same so spacers that I used with my first measurement. Is it possible that alignment could be that far off from removing the heads? Since everything is out. I probably need to re measure.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
0396
post Jul 18 2015, 02:16 PM
Post #33


Advanced Member
****

Group: Members
Posts: 2,046
Joined: 13-October 03
From: L.A. Calif
Member No.: 1,245
Region Association: Southern California



How many miles does the motor have where you thought it was good to reuse the ramps?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tornik550
post Jul 18 2015, 02:45 PM
Post #34


Senior Member
***

Group: Members
Posts: 1,248
Joined: 29-January 07
From: Ohio
Member No.: 7,486
Region Association: None



QUOTE(396 @ Jul 18 2015, 04:16 PM) *

How many miles does the motor have where you thought it was good to reuse the ramps?


I'd prefer not to answer that question (IMG:style_emoticons/default/smile.gif) Just kidding

I do not know how many miles were on the engine. The ramps appeared fairly new and were defiantly not the originals. The engine is practically brand new now which is why I clearly should have replaced the ramps.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
sixnotfour
post Jul 18 2015, 03:09 PM
Post #35


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

Group: Members
Posts: 10,436
Joined: 12-September 04
From: Life Elevated..planet UT.
Member No.: 2,744
Region Association: Rocky Mountains



now its time to check cam timing..and in relation to #1 maybe 180 out
User is online!Profile CardPM
Go to the top of the page
+Quote Post

2 Pages V < 1 2
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 11th June 2024 - 07:23 PM