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g 16bs free running

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BJPK

Joined: Thu Feb 19, 2009 10:30 pm
Posts: 786
Location: perth

Posted: Sat Oct 23, 2010 10:08 am

i was always pretty sure that g16bs are non interference engines?
for this reason i have been putting of the cam belt. but if somebody proves they are not then id better get around to doing it.

Gwagensteve

Joined: Thu Feb 26, 2009 10:30 pm
Posts: 13007
Location: Melbourne

Posted: Sat Oct 23, 2010 10:51 am

All factory G series motors are free spinners AFAIK.

I've seen a G 16B break a timing belt and I can assure you it was a free spinner because it took us about 6 hours to figure out why it wouldn't run....

Steve.

shandy92

az supporter

Joined: Tue Nov 25, 2008 10:30 pm
Posts: 5066
Location: perth, Australia

Posted: Sat Oct 23, 2010 11:19 am

hmmm ok, this is good to know. i have a haynes manual, i have had a look but cant find anything info on it being a interference engine or not. any ideas on where i can?

i was always told that it was just the G13 engines that were non-interference engine.

Mitch

89_tintop

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Joined: Fri Aug 07, 2009 11:30 pm
Posts: 3159
Location: gold coast

Posted: Sat Oct 23, 2010 6:51 pm

Just googled the question and every post says the same thing....

Non interference

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Ben_Sierra

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Joined: Wed Sep 30, 2009 11:30 pm
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Location: Perth

Posted: Sat Oct 23, 2010 9:29 pm

The only G engine which is an interference engine is the G13B.

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alien

Joined: Wed Mar 24, 2010 10:30 pm
Posts: 16343
Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.

Posted: Sat Oct 23, 2010 11:40 pm

ben - g13b or g13bb? or both?

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jonno_racing

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Joined: Wed Apr 15, 2009 11:30 pm
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Posted: Sun Oct 24, 2010 12:51 am

g13b is interferance i think the rest arnt.

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losfer

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Joined: Fri Mar 30, 2007 11:30 pm
Posts: 977

Posted: Sun Oct 24, 2010 2:49 am

g16b is interference hate to say people ....

Ben_Sierra

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Posted: Sun Oct 24, 2010 3:44 am

alien wrote:

ben - g13b or g13bb? or both?

G13B...

Cos of the twin cam.

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matty87

Joined: Sun Oct 25, 2009 10:30 pm
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Posted: Sun Oct 24, 2010 3:56 am

Ben_Sierra wrote:

alien wrote:

ben - g13b or g13bb? or both?

G13B...

Cos of the twin cam.

why Because of the twin cam?

Not disputing it just asking why.

Ben_Sierra

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Location: Perth

Posted: Sun Oct 24, 2010 5:27 am

I dunno if its just bacause its a twin cam, but the twin cam head is an interference design...

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matty87

Joined: Sun Oct 25, 2009 10:30 pm
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Location: the wild west
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Posted: Sun Oct 24, 2010 5:49 am

can anyone explain why Suzuki made the g13b twin cam head interference design. i find it odd that the rest of the series is free running but they decided to do it this way with the 13b. i dont see that the fact it is twin cam should dictate this design change or am i missing something?

royce

omnipotent being

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Sun Oct 24, 2010 5:53 am

more valves, higher compression, valves get closer to teh piston tops

alien

Joined: Wed Mar 24, 2010 10:30 pm
Posts: 16343
Location: Perth
Vehicle: '92 Sierra, 1.6efi, SPOA, 31s.

Posted: Sun Oct 24, 2010 5:54 am

this explains it well:

No Valve/Piston Interference

Valve/Piston Interference

and this seems pretty good at telling you if its interference or not: http://www.gates.com/part_locator/index ... on_id=3598

g13a - non-interference
g16a - non-interference
g16b - INTERFERENCE

theres no real data on the jimny, but if that trend flows through would mean if its a 16 valve engine, its interference - which would makes sense given the limited space in there =)

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matty87

Joined: Sun Oct 25, 2009 10:30 pm
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Location: the wild west
Vehicle: 1987 sierra tray back buggy

Posted: Sun Oct 24, 2010 5:57 am

oh k higher compression engine that would explain it, cool thanks for the explanation.

yeah i know what is meant by interference and non interference. dont know anything about the g13b so i didnt realize it was higher compression.

Last edited by matty87 on Sun Oct 24, 2010 6:00 am, edited 2 times in total.

shandy92

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Joined: Tue Nov 25, 2008 10:30 pm
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Location: perth, Australia

Posted: Sun Oct 24, 2010 5:58 am

losfer wrote:

g16b is interference hate to say people ....

what makes you say that? as everyone else is saying its not...even google!

royce

omnipotent being

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Sun Oct 24, 2010 6:04 am

gates says it is, most multi valve engines are

losfer

az supporter

Joined: Fri Mar 30, 2007 11:30 pm
Posts: 977

Posted: Sun Oct 24, 2010 6:08 am

ive worked on more suzuki engines than most people have had hot dinners , g13b is interference , g16b is interference ..

want33s

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Joined: Fri Nov 16, 2007 10:30 pm
Posts: 8134
Location: Sunshine Coast Qld

Posted: Sun Oct 24, 2010 6:09 am

My G16B is not interference... I've wound it over by hand without cam belt fitted a few times..

royce

omnipotent being

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Sun Oct 24, 2010 6:13 am

want33s wrote:

My G16B is not interference... I've wound it over by hand without cam belt fitted a few times..

are you certain at least 1 inlet valve is fully open? and now not bent

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