Top End Boost Drop On Gt2530 Equipped Rb20
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I removed the head expecting to find broken and bent valves, but instead found number 1 at TDC and cylinder 2 at the top of its cylinder stroke as well, thought that was weird and proceeded to push cylinder 2 back down until it either bottomed out on its other piston half or the conrod either way we found the issue kind of, now to remove the engine and see how the block looks, hopefully its just the top off a piston. -
By robbo_rb180 · Posted
A little more work this week. Fitted astra power steering pump in the boot with a lowe fabrication bracket. Gave the pump a good clean, fitted Anderson plug and high pressure fitting. With the intercooler being flipped under rad support factory headlights weren't going to work. Ordered a set of origin battle lights, they arrived so got them test fitted. Will require some fiddling to fit nice but was an easy quick option for now. And today we pulled out the manual Rb gearbox and test fitted a ZF 8HP50. It will fit with some casting tabs cut off and small tap of the tunnel with a hammer. Pick up the adapter plate Wednesday so hopefully all bolted in Friday and measure for tailshaft which will be a 2 piece. Been doing a lot of ecu, pdm and tcu loom design so when comes to wiring it in a few weeks will all go smoothly. -
FYP. Sadly. Even bolt cutters wouldn't take 2 sec. But in the days of 18v angle grinders, nothing is safe. -
By joshuaho96 · Posted
One piece driveshaft I would recommend a dual CV setup otherwise stick to OEM. I have heard most one piece driveshafts cause excess vibration otherwise. The transmission grind I'm quite familiar with. You can try shockproof gear oil, otherwise you need a new transmission. The shifter is extremely simple on these cars. If you want pull apart the assembly and replace the plastic bushing but I doubt that fixes anything. The tail light issue is very common, unfortunately new tail lights are long discontinued. The trunk antenna going up always is because your radio doesn't have a true power antenna control, just remote amp power signal. There is a blank switch plate that you can pop out and install a switch for this or alternatively source a head unit that has proper antenna control. Throttle body sticking you have to disambiguate by disconnecting the cable and seeing if the linkages are the problem or something else. There is a procedure to adjust them, refreshing them is also somewhat involved if that's the issue. I have dealt with many of these issues. Old cars really are fractals of problems. The more you fix the more you discover there is to fix. -
Welp, you've got a long list of experiences right there. I'd say you're on the right path.
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