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Old 12-11-2006, 02:53 AM   #1396
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Default Red RTV sealant in crankshaft

hey guys
has anyone tried the red rtv sealant inside the crankshaft of the tzr?
has it made any noticeable difference?

performance? runtime etc

i just picked up a m-speed tz and it has the red sealant in the crankshaft and ive noticed all the factory fast engines have it standard.

thanks!
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Old 12-11-2006, 10:53 AM   #1397
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It helps the performance. The fuel and air travel down the crankshaft and into the case with less turbulance (spell??) if it has the silicone ramp.
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Old 12-11-2006, 04:33 PM   #1398
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It also decreases the dead volume in the crankcase, and thus the crankcase compression increases.
A twofold benefit
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Old 12-17-2006, 05:33 AM   #1399
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Hi guys,,

I've been using a TZ(p)-T3 for about 2 months now. I properly broke in the engine with the assistance of one of the local tuning experts at the track.

Recently, I noticed the engine suffering from loss of power. I opened up the engine and noticed that my crankshaft was locking up during the turn process. It wasn't a permanent lock or anything. It seemed like it would get stuck for a sec and then resume turning like normal. I've got different opinions regarding the conrod and crankshaft to be replaced.

Any ideas what could be the problem and how to fix it..??
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Old 12-17-2006, 06:45 AM   #1400
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Default lock

hey moe! take the piston and sleeve out . leave the crank in. and slowly turn the crank from the front side of the motor. if it has some stiffness or resistence while tuning then the bearings are the issue ,note most of the time its the rear bearing . hope that helps
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Old 12-17-2006, 10:15 AM   #1401
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You could have got some dirt in it when changing the air filter. Do what isuzuguy said and take out the crank and wash everything with motor cleaner ( crankshaft, front and rear bearings and the crankcase). Put the crank back in and see if it spins free. Hope this helps.
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Old 12-17-2006, 04:55 PM   #1402
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Default linkage rod..

guys i realised yesterday after racing that the linkage end of the carb rocked side to side

is this normal?

also where can i buy replacement heads for the tz as one of the fins on the engine broke off to
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Old 12-17-2006, 06:47 PM   #1403
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Thanks for the reply guys..

I only discovered the problem after washing the whole engine with my engine cleaner.

Today, I switched cranshafts with a friend of mine who is not using his TZ and the crankshaft turned freely. Do I still need to look at the rear bearing as well or should I just conclude that my crankshaft was faulty and needs to be replaced?
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Old 12-17-2006, 08:26 PM   #1404
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I would say that it was your crankshaft. So after cleaning everything the original one still gets cought on something? If both spin free now I would think that it was just dirt.
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Old 12-18-2006, 05:23 AM   #1405
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Quote:
Originally Posted by Seisick
I run my tz 3 port with the 5 port crankshaft, it goes head to head on a medium sized track against the sirios sti and new picco red dot wich by the way its a nice option on price vs performance,
stock shimming on 20 nitro and coupled with the os 1040-vr 12 plus or mugen p1004 will make a nice combo on your tz, on my club is the most popular engine and easy to tune, you canīt go wrong

happy racing
How's the difference in performance when running tz 3 with the 5 port crankshaft? Will it be as durable? Is it really worth it or should i stick to the 3 port crankshaft?

Thanks..
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Old 12-18-2006, 07:58 AM   #1406
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the performance is slightly higher specially on the acceleration, so switch to the 5 port when in need to replace the crankshaft, durability is the same, it will last for 2 sets of p/s, depending on your abuse of course, the speed however is a different story, that modifying is huge

happy racing
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Old 12-21-2006, 12:50 AM   #1407
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Default zac modified tz head question..

hello
i am about to buy a new head for my os tz 3 port

the only one i can find is the kawahara head, it does look much higher than the standard one but does it sit countersunk so that its the same height?

i dont want a taller head so that when i roll over and crash it doesnt break.

i have a picture that shows the 2 .. im just not sure how much taller it is..

thanks for help guys
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OS 12 TzR-zac-head-engine.jpg  
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Old 12-21-2006, 04:06 AM   #1408
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Quote:
Originally Posted by mrgsr
hello
i am about to buy a new head for my os tz 3 port

the only one i can find is the kawahara head, it does look much higher than the standard one but does it sit countersunk so that its the same height?

i dont want a taller head so that when i roll over and crash it doesnt break.

i have a picture that shows the 2 .. im just not sure how much taller it is..

thanks for help guys
the head fits onto the motor the same as the silver head.
the only difference ( apart from colour) is that the Kawahara head has 1 extra cooling fin over the silver head so i shouldn't make a lot of difference to cg John
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Old 12-21-2006, 05:12 AM   #1409
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Thanks joe, i was more worried about it hitting the body.
at least the stock tz head is shorter so if u roll it wont be direct to damage

man judging by those pictures i can swear its counter sunk
look at the top of the high speed needle on each pic
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Old 12-21-2006, 10:42 PM   #1410
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Im having tuning probs with my TZ, im on factory settings and whenever i floor the car the engine sounds fine but the car only goes slow to mid speed. It seems as if the clutch isn't engaging properly. Its deff not the engine settings though because ive tried leaning it out to a more moderate setting and exactly the same thing happens. I havn't checked the clutch yet because the car was working fine the last time i used it, i just wanted to confirm if it could be an engine prob. Im going to open up the clutch and see whats happening.
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