1.3 free spinning when the timing belt breaks? - Off-Road Forums & Discussion Groups
Suzuki GEO All Discussion of all things, Suzuki and GEO

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 11-11-2000, 10:25 AM Thread Starter
Can't Get Enough
 
Join Date: Aug 2000
Location: Waldorf, Maryland
Posts: 1,154
Thanks: 0
Thanked 0 Times in 0 Posts
 
1.3 free spinning when the timing belt breaks?

Riddle me this. When you break a timing belt on the 1.3 engine is the top end free spinning? Or does the engine lock up and hand grenade the pistons, valves, heads, etc?

Tim Martin
87' Samurai, SPOA, 31's, 1" shackle lift, Hi-lift jack, everything else bone stock.
zoomy4 is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 11-11-2000, 11:51 AM
 
Join Date: Dec 1999
Posts: 1,331
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: 1.3 free spinning when the timing belt breaks?

I know a guy that had a timing belt break on a Sidekick going about 60 mph and it didn't hurt a thing, just put on a new belt. Hope this helps.

88.5 Samurai is offline  
post #3 of (permalink) Old 11-11-2000, 05:51 PM
 
Join Date: Aug 2000
Posts: 1,745
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: 1.3 free spinning when the timing belt breaks?

yes it is freespining, my friend broke his and nothing happened reallly, just cranked the engine and the pistions didnt hit.
Anton


87 Suzuki Samurai JX, Hybrid SPOA, expander shackles, removable doors, coustom bumpers, gator guard 2 interior, fast back top, rear locker, 31's, clean interior.
Anton is offline  
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 11-11-2000, 10:51 PM
**DONOTDELETE**
Guest
 
Posts: n/a
Re: 1.3 free spinning when the timing belt breaks?

the timing belt controls the head it is in syncro with the crank,it is very possible to have the t-belt brake when the intake or exhaust valves are in the most extended point the cam will stop turning causing everything else in the head to basically freeze until the pistons come back into the head sometimes this causes bent valves I've had 2 different t-belts brake on different veichles with no appearent damage but that all could change.

Drive it like you stole it!!!
post #5 of (permalink) Old 11-12-2000, 01:00 AM
zukiman
Guest
 
Posts: n/a
Re: 1.3 free spinning when the timing belt breaks?

The stock 1300s and 1600s are non-interference motors, so no matter where in the timing cycle the belt breaks, you don't have to worry about the pistons contacting the valves. On many other cars, though, if the timing belt, chain, or gear breaks or skips a tooth, you could be in for major damage.

Suzuki recommends changing the Samurai's timing belt every 60,000 miles I believe. With my GTi hybrid engine, it is not even close to being a non-interference design anymore. In fact, we were worrying that with its shaved head, GTi 16-valve flat-top pistons, and the 8-valve head with a high-lift cam, it might have been an interference motor with everything running properly! No worries, though, it is fine until I break a timing belt. To safeguard against this, I will be replacing my timing belt once a year since it's such a quick and easy job.

But for a regular Samurai motor, you have no worries. The worst a broken timing belt will do is leave you stranded. So carry a spare!

--Geoff Beasley

post #6 of (permalink) Old 11-12-2000, 09:50 AM
 
Join Date: Sep 2000
Posts: 1,509
Thanks: 0
Thanked 0 Times in 0 Posts
 
Re: 1.3 free spinning when the timing belt breaks?

Geoff:
It sound like you have quite a motor! Have you ever had the motor on a dyno? Do you know what the hp and torq is? What kind of fuel milage do you get?
Thanks,

-Farther
Farther is offline  
post #7 of (permalink) Old 11-12-2000, 05:58 PM
zukiman
Guest
 
Posts: n/a
Re: 1.3 free spinning when the timing belt breaks?

I wish I knew of a dyno somewhere that I could put it on, because I'm really curious how exactly it stacks up not only to a stock 1300, but also compared to 8-valve and 16-valve 1600s, rather than just a worthless anecdotal seat-of-the-pants feeling or impromptu stopwatch drag races.

Although by no means scientific because we haven't been able to drag race side-by-side, both I and my friend Adam agree that my GTi hybrid engine smokes his 8-valve 1600. The only "side-by-side" comparison we did was driving up the summit from where the Rubicon starts back to my family's house, and at those high elevations with long 2nd and 3rd-gear highway hills, I wound up WAY ahead of him by the time we got back to my place, without even driving like I was racing him. In other words, I wasn't pulling 8500rpm, I was just doing normal 6000rpm shifts.

The closest thing to a scientific measurement of this engine I have are some printouts from that software called Desktop Dyno. After plugging in all the specs for the displacement, cam, etc., it says my motor peaks at 105hp and 92ft-lbs of torque if memory serves correctly. That was much higher than when compared to my friend's 8-valve 1600 in the same software.

Right now I'm just running a Weber. When I get these dual Mikunis on it, I should have no problem keeping up with 16-valve 1600s. My sister's X-90 has one and weighs about the same as my Samurai, and it's a big more powerful, but not all that much more. The big difference is with wind resistance....my Samurai's about as aerodynamic as a barn door, so it would take a V8 to get any kind of highway performance out of the vehicle, but that would just suck the doors right off it at those high speeds anyways.

--Geoff Beasley
Suzuki Tech Editor: http://www.Off-Road.com


Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome