Recent content by caveman

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    GX390 Oil seal failures

    I took the pressure reading at the oil fill- dipstick location…very messy. Last night I installed another seal…this time with RTV on the outer seal that mates with the block. Have ran for 35 minutes with no leaks? I hope that 1mm film of RTV has been the issue. I’ve used RTV on all the seals...
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    GX390 Oil seal failures

    Not OEM. But that’s the seal p/n and dimensions To determine the pressures I used pressure/vacuum gauge…kinda messy with oil coming off the splasher
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    GX390 Oil seal failures

    Ok I don’t think it’s temp. I just installed another seal an within minutes before it heated up was leaking. There appears to be negative pressure in the crankcase. I grease the shaft and seal to avoid damaging. I’m installing seal flush with the case. There is no up- down shaft movement. No...
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    GX390 Oil seal failures

    Hello all, new to the group. I have an issue Im trying to work out on my GX390. I just recently started failing output shaft seals. I believe this was caused by a cooling issue (mouse next in cooling fins) but has been resolved. The last seal I installed I started the engine and measured the...
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