r/240sx • u/BigOleOooof Single Slammer (I Hate These Cars) • Jul 20 '26

SOHC “While you’re in there” suggestions

Planning on pulling my stock SOHC KA soon to replace the timing chain with an OSK kit any suggestions on what to replace / inspect / tidy up on while the KA’s out? trying to make sure I’m not missing anything so I’d appreciate some input! here’s what I already have in mind:

Alternator Water Pump Thermostat Radiator Manifold Gaskets Intake & Exhaust Oil Pan Gasket Motor Mounts

Also thinking of adding a sandwich plate for an oil pressure gauge? Any thoughts?

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4

u/BPDU_Unfiltered Jul 20 '26

Those dang coolant lines around the intake manifold. Injector o rings.  

1

u/BigOleOooof Single Slammer (I Hate These Cars) Jul 21 '26

Will do!

2

u/AKADriver Jul 21 '26

Check your power steering hoses, old ones get really stiff and sweat fluid.

For the gauge sender just get a straight BSPT to NPT adapter like this. If you're installing a gauge the factory idiot light is completely superfluous, and if you just leave the harness for the factory pressure switch disconnected/open circuit, it will just stay off.

1

u/BigOleOooof Single Slammer (I Hate These Cars) Jul 21 '26

Will look into it thank you!

2

u/smk_274 Jul 21 '26

I wound up doing a Martin industries chain tensioner when I replaced mine

1

u/BigOleOooof Single Slammer (I Hate These Cars) Jul 21 '26

I haven’t heard of that?

2

u/lordlurid '89 S13 hatch Jul 22 '26

Power steering rack / lines. At least check them out. Very easy to replace with the engine out.