It is currently Thu Oct 23, 2014 9:53 am

Contact Us | All times are UTC + 10 hours



Welcome
Welcome to Offroad80s.com

You are currently viewing our boards as a guest, which gives you limited access to view most discussions and access our other features. By joining our free community, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content, and access many other special features. Registration is fast, simple, and absolutely free, so please, join our community today!

If you are a registered user and are having troubles staying logged in or you attempt to log in and the forum dosent let you, Please read this post first If you are still having problems contact Admin.

Forum rules


Please click here to view the forum rules



Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: Coaster exhaust brake
PostPosted: Sat Jun 06, 2009 6:06 pm 
Offline
NSW Member
NSW Member
User avatar

Joined: Mon Nov 03, 2008 9:14 am
Posts: 106
Reputation: 1


Location: Windsor, NSW
Cruiser Model: HZJ80 DX
Year: 95
Hi

I was surfing the net and found that the Toyota coaster busses have a 1HZ fitted with a exhaust brake

Has does anyone know how this would go on an 80 series?

im just worried about back pressure into the engine practically with the turbo

Advice needed

camo

_________________
Shifter vibrates, mirrors oscillate, bonnet pulsates, dust permeates, engine palpitates, tyres agitate, eyeballs rotate, hearing vacillates, bank account fluctuates, relationships disintegrate. You get all this and more when you drive an 80 series truck.


Top
 Profile Send private message  
 
 
 Post subject: Re: Coaster exhaust brake
PostPosted: Sun Jun 07, 2009 3:56 pm 
Offline
NSW Member
NSW Member
User avatar

Joined: Tue Sep 04, 2007 9:44 pm
Posts: 509
Reputation: 1


Location: Sydney
there was thread about these on here ages ago, some guy from Canada was looking at doing it.

I dont see any problem, most light trucks have these, they are switched so you can turn it off completely or have it come on when the accelerator pedal returns to the resting position, if you touch the clutch or throttle it opens again.

_________________
Dave


Top
 Profile Send private message  
 
 Post subject: Re: Coaster exhaust brake
PostPosted: Tue Jun 09, 2009 7:25 pm 
Offline
NSW Member
NSW Member
User avatar

Joined: Tue Sep 04, 2007 9:44 pm
Posts: 509
Reputation: 1


Location: Sydney
check this out

http://www.gearingdynamics.com/exhaustbrake.htm

_________________
Dave


Top
 Profile Send private message  
 
 Post subject: Re: Coaster exhaust brake
PostPosted: Wed Jun 10, 2009 8:55 am 
Offline
NSW Member
NSW Member
User avatar

Joined: Mon Nov 03, 2008 9:14 am
Posts: 106
Reputation: 1


Location: Windsor, NSW
Cruiser Model: HZJ80 DX
Year: 95
i just sent them an email ill see how it goes.

Them being in Victoria could be a pain if they have to fit it

camo

_________________
Shifter vibrates, mirrors oscillate, bonnet pulsates, dust permeates, engine palpitates, tyres agitate, eyeballs rotate, hearing vacillates, bank account fluctuates, relationships disintegrate. You get all this and more when you drive an 80 series truck.


Top
 Profile Send private message  
 
 Post subject: Re: Coaster exhaust brake
PostPosted: Sat Jun 13, 2009 10:32 am 
Offline
WA Member
WA Member
User avatar

Joined: Tue Apr 01, 2008 11:36 pm
Posts: 560
Reputation: 0


Location: Perth
Australian State: WA
Cruiser Model: HDJ80 Sahara
Transmission: Auto
Year: 92
Don't know about the place you emailed but I fitted an exhaust brake to a truck and it was pretty straightforward. The only difference was the actuator was pneumatic not electric so i teed into the truck air system. The only tricky bit was cutting the exhaust and welding in the housing to the pipe. A few adjustments to the stopper screw so it doesn't close too much and stall the engine,fit the switches to the clutch and go pedals. Should be a home job if you have a mig to weld the exhaust.

_________________
Ross
92 Sahara HDJ80


Top
 Profile Send private message  
 
 Post subject: Re: Coaster exhaust brake
PostPosted: Sat Feb 19, 2011 5:03 pm 
Offline
80 Newbie
80 Newbie

Joined: Sun Aug 29, 2010 6:59 pm
Posts: 32
Reputation: 0


Location: nsw
Cruiser Model: HDJ80 GXL
Transmission: Auto
Year: 92
hey rapid im keen on fitting one to my auto 80, i pmed ya but not sure if you got it, can you drop me a pm


Top
 Profile Send private message  
 
 Post subject: Re: Coaster exhaust brake
PostPosted: Sun Feb 20, 2011 7:53 am 
Offline
ACT Member
ACT Member
User avatar

Joined: Sat Sep 08, 2007 1:46 pm
Posts: 469
Reputation: 1


Location: Canberra
Australian State: ACT
Cruiser Model: HDJ80 GXL
Transmission: Manual
Year: 91
I have been thinking along these lines for a while also and thought that it would help braking while towing heavy loads... My 80 is aging but does not suffer much more than what I would expect an older vehicle would do in blow by (I don't get any oil in the inlet at all . Adding an Exhaust Brake would produce cylinder pressures that would normally not i.e. on the exhaust stoke, so there would have to be more blow by and possibly more exhaust into the crank case... Or am I over thinking this??? I often do that... Would there be a problem???

_________________
Peter
1991 HDJ80 Auto, GBT Grunter, Safari IC.
Canberra Oz
http://www.youtube.com/user/KiwiPeteACT


Top
 Profile Send private message  
 
 Post subject: Re: Coaster exhaust brake
PostPosted: Sun Feb 20, 2011 12:38 pm 
Offline
WA Member
WA Member
User avatar

Joined: Wed Aug 15, 2007 9:02 am
Posts: 1805
Reputation: 0


Location: Perth, WA
Australian State: WA
Cruiser Model: FZJ80 GXL
Transmission: Auto
Year: 95
The pressure caused by the exhaust brake would be less than the pressures created by combustion. They have been used on trucks for years so they can't be that bad for the engine.

_________________
95 GXL, Auto, Petrol, 3" Lift and some other bits. (Retired)
96 GXL, LS2 conversion. Build thread HERE

-------------------------------------------------------
I love animals, they all taste good!


Top
 Profile Send private message  
 
 Post subject: Re: Coaster exhaust brake
PostPosted: Sun Feb 20, 2011 1:06 pm 
Offline
WA Member
WA Member
User avatar

Joined: Mon Sep 22, 2008 2:28 pm
Posts: 1302
Reputation: 2


Australian State: WA
Cruiser Model: FZJ80 GXL
Transmission: Manual
Year: 92
ive fitted 2 systems in the past. easy to do, just time consuming. as to whether i would do it myself, im not sure, i dont think the gains are worth the effort, unless u do a lot of extended towing of heavy loads. i wouldnt use it offroad too much but could be handy haha


davo

_________________
FZJ80 GXL : SOLD
91 base : building into rock crawler

Datto 07 4.2Td Cab Chassis - Daily : 3" lift & 33's, Tray top camper
LandRover Discovery1 : 3.9v8, lifted, locked, loaded (missus toy)

http://community.webshots.com/user/D3V1L9<- Pics


Top
 Profile Send private message  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

Contact Us | All times are UTC + 10 hours


Who is online

Users browsing this forum: No registered users and 3 guests


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 post attachments in this forum

Jump to:  
suspicion-preferred