200sx 1.8T 1989 need some help please

[kev200sx1.8t]

i have a 200sx s13 with the 1.8 T i am getting a noise when i rev it up then keep reving it from about 3000 to 4000 rpm it is sounding like tappets but i'v checked the gaps and all ok it is also smoking??? i have done a head gsk on it about 3 weeks ago please help thanks.

[r34 gtr]

what exactly does it sound like? can you describe the sound? i think i know the sound you mean, but want to make sure..

- tim

[kev200sx1.8t]

it is hard to explain sound's like a diesel dose that help?

[pulsar gtr]

Can you tell if the noise is comming from top end or bottom end?

The reason I ask, is if it is from the bottom end, it could be connecting rod bearings.

What octan are you using, if you use low octane, that would cause the valves to tick and possible detonation.

Also, if the temperature sensor is gone bad, it will cause the valves to tick due to the ecu to advance or retard the timing.

Keep us updated.

Good luck,

PULSAR GTR

Rafi

[kev200sx1.8t]

it sounds like top end i.e tapets but i'v checked the cams look good just had oil and filter change no change to the preformance just noise and smoke

been useing 95 ron

i fitted a new temp sensor when i did the head gsk could it be due to the sensor that is fitted to the exhaust cam??? when i removed it i marked it looks right??it is also smokeing it is an oil smoke too???

[pulsar gtr]

Hi,

I Would check the temp sensor that you installed.The CAS that plugs on the exhaust sensor will cause it if the timing isn't right where you retard the timing or advancing it.I HIGHLY recomend that you check your timing by a timing gun and make sure it is set at 15degrees DTC (15-18degrees DTC).

PULSAR GTRRafi

[boost_boy]

3000-4000rpm is in the area of rod bearings or a cracked ringland. I'm leaning more towards the rod bearings. Why did you change the headgasket in the 1st place?

Dee

[nismoplsr]

mmmmmmuch agreed

rod bearings

[kev200sx1.8t]

ok thanks i will try that and let u know

i replaced the head gsk due to coolent leak into the pistons

[r34 gtr]

yeah, would totally check those big ends.

- tim

[float_6969]

Ouch, you've got my vote on that too. If you had to replace it due to coolant in the clynders, I'd check the rods pretty quick.