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 )

> 914World Classifieds Rules

We've established the following rules to help make your sales/purchases as successful as possible!
- Please List WTB:, FS:, TRADE: etc (want to buy, for sale, and trade respectively) before your add title.
- You *must* put a price in your ad and state how you would like payment!
- If you'd like to bump your ads, feel free to do so every two days.
- DO NOT MAKE YOUR ADS IN ALL CAPITAL LETTERS! It's considered rude.
- All eBay ads belong in the eBay category.
- Please consolidate your ads into one big lump... listings and pictures together in one thread. Please be considerate of other classified users!!
- Mark your items "SOLD" once you sell them. Please do not ask to have ads removed. Ads will automatically hide themselves after 30 days. We also ask that you leave your pricing in the ads to help others determine fair market value for future sales.

> WTB - Metal Clutch Cable Pulley, Mine Keep Melting
motorvated
post Sep 10 2018, 07:02 PM
Post #1


Member
**

Group: Members
Posts: 190
Joined: 13-February 13
From: Colorado
Member No.: 15,519
Region Association: Rocky Mountains



Switched over to a header/megaphone exhaust and quickly melted the stock white plastic pulley on the transaxle. Wrapped the headers and collector with fiberglass tape and installed a black delrin pulley, and promptly melted that one too. The collector sits very close to the pulley. I'm racing the car so things are getting pretty hot under there. Anyone have or know where I can get a metal pulley. I know that some were produced a while back, so if you have one in your parts stash that you won't be using, I could certainly use it. Thanks, Mike.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
2 Pages V  1 2 >  
Reply to this topicStart new topic
Replies(1 - 19)
1adam12
post Sep 10 2018, 11:01 PM
Post #2


Member
**

Group: Members
Posts: 147
Joined: 25-May 17
From: Chino Hills, CA
Member No.: 21,132
Region Association: Southern California



You may want to look into some heat deflector sheets in the meantime. Either DEI or DCI will have some heat reflective material with adhesive backing that you could custom form to the back housing of the cable pulley housing and then use a heavy duty formable reflective sheet on the face exposed to the headers like a cover. You'll have to tin cut it to shape and then use safety wire to attach. Not the prettiest solution but could get the job done until you find an aluminum pulley wheel.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mb911
post Sep 11 2018, 04:20 AM
Post #3


Advanced Member
****

Group: Members
Posts: 2,838
Joined: 2-January 09
From: Burlington wi
Member No.: 9,892
Region Association: Upper MidWest



I thought ebay possibly?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
bdstone914
post Sep 11 2018, 05:37 AM
Post #4


bdstone914
****

Group: Members
Posts: 2,813
Joined: 8-November 03
From: Riverside CA
Member No.: 1,319




Edit. I do not have them
Was thinking thermostat pulley
R.
Bruce
User is online!Profile CardPM
Go to the top of the page
+Quote Post
motorvated
post Sep 11 2018, 07:37 AM
Post #5


Member
**

Group: Members
Posts: 190
Joined: 13-February 13
From: Colorado
Member No.: 15,519
Region Association: Rocky Mountains



QUOTE(bdstone914 @ Sep 11 2018, 05:37 AM) *

I have them. PM me.
Bruce


PM sent. Thanks.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mikey914
post Sep 11 2018, 07:46 AM
Post #6


The rubber man
*****

Group: Members
Posts: 8,633
Joined: 27-December 04
From: Hillsboro, OR
Member No.: 3,348
Region Association: None



That's a lot of heat. May want to check your trans fluid on a regular basis.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
motorvated
post Sep 11 2018, 10:14 AM
Post #7


Member
**

Group: Members
Posts: 190
Joined: 13-February 13
From: Colorado
Member No.: 15,519
Region Association: Rocky Mountains



QUOTE(Mikey914 @ Sep 11 2018, 07:46 AM) *

That's a lot of heat. May want to check your trans fluid on a regular basis.


Fresh oil and one race weekend for the last melted one. Pedal felt fine the whole time, but felt odd when driving the car out of the trailer about a week later. Tranny has a Quaife in it and I'm running it pretty hard. This probably belongs in the Garage if the discussion continues.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
motorvated
post Sep 12 2018, 05:28 PM
Post #8


Member
**

Group: Members
Posts: 190
Joined: 13-February 13
From: Colorado
Member No.: 15,519
Region Association: Rocky Mountains



QUOTE(motorvated @ Sep 11 2018, 10:14 AM) *

QUOTE(Mikey914 @ Sep 11 2018, 07:46 AM) *

That's a lot of heat. May want to check your trans fluid on a regular basis.


Fresh oil and one race weekend for the last melted one. Pedal felt fine the whole time, but felt odd when driving the car out of the trailer about a week later. Tranny has a Quaife in it and I'm running it pretty hard. This probably belongs in the Garage if the discussion continues.


BTT - Still Looking.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cary
post Sep 13 2018, 07:56 AM
Post #9


Advanced Member
****

Group: Members
Posts: 3,418
Joined: 26-January 04
From: Sherwood Oregon
Member No.: 1,608
Region Association: Pacific Northwest



Could try this. Moves it away from the gear box.
Attached Image

Do you a transmission cooler ?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Larmo63
post Sep 13 2018, 08:41 AM
Post #10


Advanced Member
****

Group: Members
Posts: 3,321
Joined: 3-March 14
From: San Clemente, Ca
Member No.: 17,068
Region Association: Southern California



I used Chris's excellent Tangerine pulley adapter that Cary mentions above.

That, and a Patrick Motorsports pulley....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
GregAmy
post Sep 13 2018, 09:09 AM
Post #11


Senior Member
***

Group: Members
Posts: 633
Joined: 22-February 13
From: Middletown CT
Member No.: 15,565
Region Association: North East States



A simple piece of roof flashing (or .040" aluminum if you want to be fancy) is all you need to block the radiant heat from the exhaust.

The header on my Integra Super Touring car flowed right below the oil pan, about 2" away. I was seeing stoopit oil temps. I added some aluminum flashing mounted about halfway between the header and oil pan. Oil temps dropped 30 degrees.

Just make sure the flashing is not mounted up against the pulley, since conduction will get it there anyway.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rhodyguy
post Sep 13 2018, 09:53 AM
Post #12


We're so screwed...
***************

Group: Members
Posts: 18,452
Joined: 2-March 03
From: Orion's Bell. The BELL!
Member No.: 378
Region Association: Galt's Gulch



Thermal barrier coat your headers.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JamesM
post Sep 13 2018, 05:24 PM
Post #13


Senior Member
***

Group: Members
Posts: 914
Joined: 6-April 06
From: Kearns, UT
Member No.: 5,834
Region Association: Intermountain Region



Are you sure there is not something else going on with the tune of your car? That seems like a lot of heat in your exhaust.

Running a similar setup on my autocross car with the 4-1 collector running right by the clutch pulley. Prior to jet-hot coating and a custom bracket to angle the clutch cable slightly lower, the best I was able to do was melt the cable sheath where it ran close to the pipes. Melting the pulley that is not in direct contact with the exhaust just seems like a crazy amount of heat.

Retarded timing can cause some really high EGTs, just saying.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Larmo63
post Sep 14 2018, 12:11 AM
Post #14


Advanced Member
****

Group: Members
Posts: 3,321
Joined: 3-March 14
From: San Clemente, Ca
Member No.: 17,068
Region Association: Southern California



Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mikey914
post Sep 14 2018, 04:05 PM
Post #15


The rubber man
*****

Group: Members
Posts: 8,633
Joined: 27-December 04
From: Hillsboro, OR
Member No.: 3,348
Region Association: None



Is that a delrin pulley? Or just powder coated.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Larmo63
post Sep 18 2018, 10:28 AM
Post #16


Advanced Member
****

Group: Members
Posts: 3,321
Joined: 3-March 14
From: San Clemente, Ca
Member No.: 17,068
Region Association: Southern California



That is the Patrick Motorsports pulley that they sell.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
barefoot
post Sep 19 2018, 08:31 PM
Post #17


Senior Member
***

Group: Members
Posts: 619
Joined: 19-March 13
From: Charleston SC
Member No.: 15,673
Region Association: South East States



Measure your fully and look in McMaster Carr online. they have all kinds of industrial stuff & may have something close that you may have to drill out the center hole to fit.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
motorvated
post Sep 20 2018, 10:11 AM
Post #18


Member
**

Group: Members
Posts: 190
Joined: 13-February 13
From: Colorado
Member No.: 15,519
Region Association: Rocky Mountains



Great suggestion. Looks like they have both finished pulleys and blanks that can be machined. Might find something that will work.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Chi-town
post Sep 21 2018, 09:39 AM
Post #19


Newbie
*

Group: Members
Posts: 35
Joined: 31-August 18
From: Disneyland
Member No.: 22,446
Region Association: Southern California



That kind of radiant heat is damaging a lot of other things besides that plastic pulley. I can't imagine what your trans oil temps look like. (IMG:style_emoticons/default/blink.gif)

Pick up one of these:
https://www.harborfreight.com/hand-tools/th...eter-63985.html

Point it at the trans, CV's, and clutch pulley after a hard run. This will give you a better idea of what you are dealing with as far as radiant heat.

I would also invest in a wideband O2 set up and double check your fueling because if the exhaust is that hot your exhaust valves and seats probably aren't going to last long at all.

If your fueling and ignition are spot on , then I would look into Jet-Hot or Zercotec not only to protect surrounding components but to lower engine bay temps and make more power.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mikey914
post Sep 21 2018, 10:28 AM
Post #20


The rubber man
*****

Group: Members
Posts: 8,633
Joined: 27-December 04
From: Hillsboro, OR
Member No.: 3,348
Region Association: None



My question is are you running a synthetic trans fluid?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

2 Pages V  1 2 >
Reply to this topicStart new topic
2 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
1 Members: Tbrown4x4

 



- Lo-Fi Version Time is now: 24th September 2018 - 03:26 AM