PortEV Forum Index PortEV
Electric Vehicle Discussion Forum
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

E-10 and brakes

 
Post new topic   Reply to topic    PortEV Forum Index -> Solectria E-10
View previous topic :: View next topic  
Author Message
misch



Joined: 05 Oct 2005
Posts: 8
Location: Texas

PostPosted: Thu Oct 06, 2005 10:44 pm    Post subject: E-10 and brakes Reply with quote

Hello everybody:

Question: What kind of vacuum system/reservoir does the Solectria E-10 use? I have some brake problems with my conversion S-10.

Michaela
Back to top
View user's profile Send private message Visit poster's website
ThomasHudson
Site Admin


Joined: 26 Sep 2005
Posts: 130
Location: Port Washington WI

PostPosted: Fri Oct 07, 2005 9:34 am    Post subject: Reply with quote

The E-10 has four ganged vacuum pumps that work together to draw down a pretty good vacuum very quickly. There is a huge vacuum tank (made out of large-diameter PVC pipe) under the cab. I don't know about the others here, but my brakes are outstanding. Very good stoping power.

My only complaint is that the ABS system, which is there, doesn't work. According to a Solectria tech I spoke to, they never were able to get the ABS system to operate without the truck's original computer, which I guess they removed when they did the conversion.

It sure would be cool if we had an automotive tech in our group who could figure out how to get the ABS system working! Smile

Who made your conversion? Can you find the vacuum pump(s) on yours?

_________________
Tom Hudson
Site Administrator
Back to top
View user's profile Send private message Visit poster's website
misch



Joined: 05 Oct 2005
Posts: 8
Location: Texas

PostPosted: Fri Oct 07, 2005 2:02 pm    Post subject: Reply with quote

Thomas:

Thanks for your answer. No - I don't have a problem locating the vacuum pump as it is loud enough to find it Smile However, my brakes are just not 'brisk' enough and I was told (by a brake shop) that the little GAST vacuum pump is just not delivering enough (in terms of volume or flow) of vacuum for the big booster.

So - not wanting to re-invent the wheel I was thinking about how the Solectria people addressed the issue. Well - I guess I know now. Four! pumps are going to deliver plenty of suction. And that is what I would need: Plenty of suction Smile

Michaela
Back to top
View user's profile Send private message Visit poster's website
276V Phil



Joined: 28 Sep 2005
Posts: 16

PostPosted: Sat Oct 08, 2005 12:03 pm    Post subject: Reply with quote

Thanks.

Last edited by 276V Phil on Tue Sep 12, 2006 11:29 am; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail MSN Messenger
misch



Joined: 05 Oct 2005
Posts: 8
Location: Texas

PostPosted: Thu Oct 13, 2005 10:41 pm    Post subject: Reply with quote

Phil Guerrieri II wrote:
Michaela,
Do you have the E-10 Service Manual that shows most of the systems, parts numbers & wiring Diagrams used by Solectria? If not, it can be e-mailed to you.


Phil:

Thanks, got it. I should have thought about Solectria trucks before I went investigating for weeks about how to get my brakes working right. Seems that a small single vacuum pump (Gast, 0.5 qft) is not capable to deliver the necessary vacuum required by the S-10s booster. So - ordered another Gast pump, this one goes all the way to 25 inches and has a rating of about 1.1 qft. In combination with the old pump, I am getting three times the vaccum I had before. But I am now needing a bigger DC-DC converter - I am afraid it never ends.

But that's the fun of it .. or is it?

Michaela
Back to top
View user's profile Send private message Visit poster's website
Jimmy Argon



Joined: 06 Oct 2005
Posts: 41
Location: Az

PostPosted: Fri Oct 14, 2005 9:17 pm    Post subject: Reply with quote

Michaela,
Dont get that bigger dc converter just yet. I think your brake problem is a cobination of the vacuum pump being small (which you solved) and the lack of an accumulator. The E10s all have one located under the passenger side, this sounds complicated but it is just a large piece of 5 inch diameter PVC pipe 40 inches long. You can build one, it has a cap glued on each end and two hoses coming out , one for the pump and one for the brake assist.
If you build one of these it sould fix your problem.
Your brake assist needs large amounts of air removed (vacuum) fast and this allows it to dump into the accumulater much faster than the average pump can pump it out.
Good Luck,
Jimmy
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    PortEV Forum Index -> Solectria E-10 All times are GMT - 5 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group