Timing mark question.

For all your twin cam conversion questions and hints
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JAS
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Location: Christchurch

Post by JAS »

Shit!! Think I've fixed it!!! :D

Went down to the wreckers first thing this morning and bought myself a 4G63 tin cover thing that goes between the two crank shaft gears.
Then stripped the cambelt off and started from scratch.
Took me a few goes (about 5 lol) but finally got everything to line up :D :D :D

The two marks on the cam gears line up almost perfectly.

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Also found a few vids on youtube that were helpfull.





Thanks so much for everyones help on this.
This is why this is such a great community, not just a Forum :)
1984 Sigma Super, Turbo Wagon
1990 GSR-VR 50,000ks
1984 GSR II 4G63 302kw atw at 24psi

http://www.facebook.com/marvinmartiannz

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WANTSOM
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Post by WANTSOM »

:beer

Will be interesting to hear how it drives now.

Oh and to those that said comments about adjustable cam gears I was not suggesting using them as a cover up solution (I aint that dumb ..... honestly) only that if its all gonna have to come apart why not invest in them as they open up a lot more opportuntiy than the standard gears.

I went straight with adjustable on my TC and degreed in the wheels (with MRB doing the nouse work) and the difference is noticable when you really get the cams timed correctly.
Never argue with an idiot, it brings you down to their level and they beat you with experience.
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JAS
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Post by JAS »

Took it for a drive today (I ran out of time to drive it yesterday).

Its got better throttle response and boosts up faster. :beer
Although Im guessing the base ignition settings are now out so I didnt give it a hard time.
Ill book it in for another dyno tune this week.

Im a very happy camper :D:D:D

Is there a post somewhere describing the "degreeing in of cams" process?
1984 Sigma Super, Turbo Wagon
1990 GSR-VR 50,000ks
1984 GSR II 4G63 302kw atw at 24psi

http://www.facebook.com/marvinmartiannz

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fugazi
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Post by fugazi »

Good work JAS!
You will now pass the 375 mark, most likeley!
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avandull
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Post by avandull »

Looking forward to seeing how much power it produces with the timing problem fixed.
Agatha the ugly Starion
enthuzed
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Post by enthuzed »

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JAS
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Post by JAS »

Yes will be very interesting to see how much power it makes this time around.
Tuners said it should be around the 380-400 mark. Thats on a hub dyno.

Ill let everyone know when I know :)
1984 Sigma Super, Turbo Wagon
1990 GSR-VR 50,000ks
1984 GSR II 4G63 302kw atw at 24psi

http://www.facebook.com/marvinmartiannz

ImageImage
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Sargeant_Khan
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Post by Sargeant_Khan »

Your dyno results just arent coming fast enough for me Lol.
Cant wait! Goodluck.
:beer
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