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 )

85 Pages V « < 69 70 71 72 73 > »   
 Reply to this topicStart new topic
> The Doc's tranny waggin'
Dr Evil
post Jul 28 2012, 05:26 PM
Post #1401


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Consider this, there will be 1/4" x 6 being fed by 1/2" and then feeding 1/2". There should be plenty of flow with lots of exposure between medium and heat source.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tscrihfield
post Jul 28 2012, 07:49 PM
Post #1402


Drive Fast and Take Chances
***

Group: Members
Posts: 643
Joined: 8-September 10
From: Amelia Ohio
Member No.: 12,156
Region Association: None
Very cool! Let us know how well that works. It seems like a good idea...

Thomas

QUOTE(Dr Evil @ Jul 28 2012, 10:10 AM) *

QUOTE(bfrymire @ Jul 28 2012, 02:52 AM) *

QUOTE(tscrihfield @ Jul 27 2012, 10:56 PM) *

Doc,
What are the tubes for? I was thinking cooling, but that would be difficult with exhaust temps since you couldn't stop the coolant from boiling.

That said whats they fer?

Thomas



Heater?

Yup (IMG:style_emoticons/default/smile.gif) I will be wrapping the headers in 1/4"OD copper tubing that will eventually terminate to 1/2" ID heater hose for transport forward to a heater core. I have a stand alone water pump already. I dont plan on finishing this design before I am driving the bus, but I wanted to see if I could get the header part done before I put them on so I didnt have to take them off again later for this.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Jul 28 2012, 09:28 PM
Post #1403


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Design on the throttle assembly is progressing well. Lots of stuff needing to be designed around. Probably finish this up tomorrow.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Jul 28 2012, 11:31 PM
Post #1404


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Some more theory on the heater setup.

Approx V of the capillary system = 2.3L

Approx V of send and return lines = 3.7L

38% of known volume exposed to heat at any moment.

Volume of the core is yet unknown.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Jul 29 2012, 11:02 AM
Post #1405


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Sometimes I get a feeling of Zen when working on the bus. Since I am creating things the did not exists in the form I needed them it, it often feels like I am actually discovering a design that existed, but I just had to see where it was and make it.

I particularly got this feeling with the mounting of the thermotimeswitch and last night with the throttle assembly. One bolt goes to a hole already in the throttle body, the base plate keeps it from rotating. The needs of the design were satisfied by a simple piece of 1/4" steel that was drilled, tapped, and notched. Not fancy, but perfect.



Attached thumbnail(s)
Attached Image Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Jul 29 2012, 12:55 PM
Post #1406


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Yet more of pulling designs from the ether. Lower throttle assembly.


Attached thumbnail(s)
Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
scotty b
post Jul 29 2012, 01:54 PM
Post #1407


rust free you say ?
***************

Group: Members
Posts: 16,375
Joined: 7-January 05
From: richmond, Va.
Member No.: 3,419
Region Association: None
Izit running yet ? (IMG:style_emoticons/default/confused24.gif)











(IMG:style_emoticons/default/poke.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Jul 29 2012, 07:36 PM
Post #1408


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Well, here come the excuses, my Suby stole 1.5 days from me this weekend (IMG:style_emoticons/default/dry.gif) Then, while working on it today some guys approached and asked if I could do some work on their 75 CB360.

The throttle is almost perfect. The ratio is off and the TB is not opening all of the way so I need to recalculate that. If that goes well, I will address this tomorrow, install the tins, wiring, turn the key and :bomb:

Nice little bike (IMG:style_emoticons/default/smile.gif)




Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BajaXJ92
post Jul 29 2012, 08:37 PM
Post #1409


Extended Member
****

Group: Members
Posts: 2,146
Joined: 20-April 06
From: Prescott, AZ
Member No.: 5,895
Region Association: MidAtlantic Region
I was also curious as to how you were going to work out the copper wire/header expansion and the gap, and also the flow. Looks like you've got it worked out. (IMG:style_emoticons/default/beerchug.gif)

Can't wait to see/hear it running. (IMG:style_emoticons/default/first.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Jul 30 2012, 08:33 PM
Post #1410


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Damn it (IMG:style_emoticons/default/headbang.gif) Damn it (IMG:style_emoticons/default/headbang.gif) Damn it (IMG:style_emoticons/default/headbang.gif)

Spent another few hours on the damn throttle cable design. I changed some parameters, welded up the throttle linkage off of the throttle body to allow for more adjustment in position of where the cable hooks in, and after all of that........the damn thing still does not function correctly. It will not open all the way until pushed by hand, the pedal feels real bad, then it wont close all the way. The weak link, after all the adjustments have been done? The cable from the tranz to the TB. I tried to use a bicycle brake cable, it is not going to work as there is no teflon lining and it is not built for this application. So, I need to either locate a cable that will work, or start to fabricate another rod control system like the one that worked so well on the last setup (IMG:style_emoticons/default/dry.gif)

Not working on it tomorrow or wed, but Thurs through the weekend should be productive now that I know what is going on.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
scotty b
post Jul 30 2012, 09:01 PM
Post #1411


rust free you say ?
***************

Group: Members
Posts: 16,375
Joined: 7-January 05
From: richmond, Va.
Member No.: 3,419
Region Association: None
Li'l Monty is counting on ya Doc (IMG:style_emoticons/default/first.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Jul 30 2012, 09:12 PM
Post #1412


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
(IMG:style_emoticons/default/sad2.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
bulitt
post Jul 31 2012, 06:12 AM
Post #1413


Achtzylinder
****

Group: Members
Posts: 4,188
Joined: 2-October 11
Member No.: 13,632
Region Association: South East States
Wait, what...bicycle brake cable for your throttle linkage?
Your gonna be a Dad! You have to start taking the safe course through life now.
You don't want a sticking throttle cable. Spend some of those Doctor Dollars!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Aug 1 2012, 06:33 AM
Post #1414


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Working on sourcing some motorcycle throttle and clutch cables. These should be more up to the task. I cant believe the others failed so badly.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
scotty b
post Aug 1 2012, 06:49 AM
Post #1415


rust free you say ?
***************

Group: Members
Posts: 16,375
Joined: 7-January 05
From: richmond, Va.
Member No.: 3,419
Region Association: None
(IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/WTF.gif) RTV much ?


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rick 918-S
post Aug 1 2012, 07:40 AM
Post #1416


Hey nice rack! -Celette
***************

Group: Members
Posts: 20,680
Joined: 30-December 02
From: Now in Superior WI
Member No.: 43
Region Association: Northstar Region
QUOTE(scotty b @ Aug 1 2012, 07:49 AM) *

(IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/WTF.gif) RTV much ?


No safety wire on those bolts? (IMG:style_emoticons/default/poke.gif) (IMG:style_emoticons/default/happy11.gif) Gitterdone (IMG:style_emoticons/default/popcorn[1].gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Aug 3 2012, 09:50 PM
Post #1417


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
OK, I met a local guy, my age, that has a sweet collection of parts and vintage bikes to include BSA, Ducati, Honda. He gave me some cables to try and one was perfect. I spent some hours futzing with trying to get the measurements correct....this did not work. What I ended up doing was putting another return spring on the transmission arm, and bending the stop on the gas pedal so that I could get more movement. This worked to solve all problems (IMG:style_emoticons/default/smile.gif) Tomorrow looks to be a day for completion and hopefuly some triumph.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
hot_shoe914
post Aug 3 2012, 09:56 PM
Post #1418


on ramp passer
****

Group: Members
Posts: 3,806
Joined: 20-November 07
From: Earle, Ar.
Member No.: 8,354
Region Association: None
QUOTE
some triumph.

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
speed metal army
post Aug 3 2012, 10:06 PM
Post #1419


Waiting for the rain to stop...
***

Group: Members
Posts: 1,068
Joined: 4-September 10
From: PNW
Member No.: 12,137
Region Association: Canada
(IMG:http://www.914world.com/bbs2/uploads_offsite/i211.photobucket.com-12137-1344053168.1.jpg)
(IMG:http://www.914world.com/bbs2/uploads_offsite/i211.photobucket.com-12137-1344053168.2.jpg)
Another(smaller) Triumph (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Aug 3 2012, 10:08 PM
Post #1420


Send me your transmission!
***************

Group: Members
Posts: 23,032
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
Wrong thread bozos.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

85 Pages V « < 69 70 71 72 73 > » 
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: 27th September 2024 - 05:27 AM
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 ...