Gq Patrol RB30 Timing

Submitted: Saturday, Oct 18, 2003 at 10:11
ThreadID: 7907 Views:4773 Replies:3 FollowUps:5
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Hi there i have just replaced the Vacume advance unit on my 3.0l GQ petrol
patrol and was wondering if any of you knew what is the best to time
it at in the book it says 15 degrees but i remember reading a while
back that they run better at a differant timing any advice would be

Regards Wilkie

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Reply By: soldierboy - Saturday, Oct 18, 2003 at 13:05

Saturday, Oct 18, 2003 at 13:05
gday wilkie.
run a few more degrees if your duel fuel.
also check the secondaries on your carby are you long time lol
AnswerID: 34263

Follow Up By: wilkie - Saturday, Oct 18, 2003 at 15:19

Saturday, Oct 18, 2003 at 15:19
thanks for that soldier boy how do i chech that the secondaries are working ?
FollowupID: 24674

Follow Up By: diamond(bendigo) - Sunday, Oct 19, 2003 at 14:56

Sunday, Oct 19, 2003 at 14:56
gday wilkie.
sorry i didnt get back to you but i was going to take some photoes of what i did to my carby because the vacume secondaries werte not working.i had to get rid of the vacume bit and make them manual.
if yours arnt working let me know and i can email you some pics.
i noticed you put up a new post try as kezza said.back bye popular
demand lolol
FollowupID: 24737

Reply By: kezza - Saturday, Oct 18, 2003 at 15:30

Saturday, Oct 18, 2003 at 15:30
just breifly
For some strange reason (maybe wear or stretching of the timing belt or wear in the dizzy) a few degrees under or over may be the answer. Either take it to a good tune up place or experiment yourself I think mine is optimal (performance and economy) at 12 or so degrees.(Dont quote me on this as its been a long time since I checked) ( A good test or approx timing is that there should be a very noticable power band at around 4,000 rpm on.) should rev freely to 6000 rpm (further if you have extractors- if you dont have extractors - get them as you are driving it at about 75% of its potential suggest Genies ( a bit more expensive but more economical) as they have an excellent design for the patrol - helps pull gas away from the cylinders frees the motor up heaps. Properly tuned it should give 13lit/100 to 20lit/100 km highway to slow bush/hilly around town.
Treat it to some new plugs and leads and use a good high quality oil and air filter. Tyres around 34 front 36 rear for bitumen

then they are quite economical.

AnswerID: 34270

Follow Up By: diamond(bendigo) - Saturday, Oct 18, 2003 at 20:39

Saturday, Oct 18, 2003 at 20:39
gday kezza.
i just fitted extractors to mine a couple of weeks ago and boy huge change in economy.went from about 22lp100 no mater what i did on road /ofroad/towing ect to about 15lp100 highway 20 off road .
mine now revs freely from about 2500rpm in stead of about 3200rpm.
bit of a shame about the dizzy cutting out at 6200rpm.back bye popular
demand lolol
FollowupID: 24703

Follow Up By: Bonz (Vic) - Saturday, Oct 18, 2003 at 22:00

Saturday, Oct 18, 2003 at 22:00
6200?? 6200?? amazed I amLaterally Literal
Seriously Cerebral
FollowupID: 24710

Follow Up By: kezza - Sunday, Oct 19, 2003 at 13:14

Sunday, Oct 19, 2003 at 13:14
Hi Diamond -

Even though they are not supposed to, generally, a properly tuned set of extractors will improve the RB 30s low down grunt - dare I say - torque very markedly.

Bonz they are a very underrated motor by the public, an RB30 patrol will out accelerate most other 4bys off the mark for a short distance but obviously the lose the rev advantage over torque quite soon (unless you drive it like you hate it - which they dont seem to mind - being a very short stroked engine).

Run them on premium or throw in a dose of octane enhancer and you would swear you had a different donk in the thing.

They are great for being able to get out of trouble in mud sand and very steep slippery slopes because of the "instant " revs - as long as you are in the right gear.
FollowupID: 24730

Reply By: wilkie - Monday, Oct 20, 2003 at 19:46

Monday, Oct 20, 2003 at 19:46
Thanks for that Diamond
would you pls be able to send those pics my secondaries dont seem to be working
is it a big job and can i do it myself?
my e-mail addy is
AnswerID: 34499

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