SkudR33 Posted May 25, 2016 Share Posted May 25, 2016 Hey guys, Had a quick look over my engine bay today to just make sure everything is doing okay... I noticed that the outer surface of the timing belt is excessively wearing against the tensioner bearing to the point where the edges of the belt are getting sticky. Some background information... The motor is a rb3025 and I'm running the two tensioner setup with a dayco 152 tooth belt. This motor was freshly built last year and I've only done about 3500km's since. Has anybody ever had this problem before? Does anybody know what may be causing this problem? Thanks in advance guys! Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/ Share on other sites More sharing options...
r32-25t Posted May 25, 2016 Share Posted May 25, 2016 Is the plate between the timing gear and the balancer on there? Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7733503 Share on other sites More sharing options...
SkudR33 Posted May 25, 2016 Author Share Posted May 25, 2016 Is the plate between the timing gear and the balancer on there? Yeh, I ran my inspection camera to check. Also the belt doesn't have much play in it while it's rotating. Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7733510 Share on other sites More sharing options...
tridentt150v Posted May 25, 2016 Share Posted May 25, 2016 Hows the tension? And hows the tensioner bearings? One could be sticking or not freely rotating/lagging? Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7734089 Share on other sites More sharing options...
R33 Jared Posted May 26, 2016 Share Posted May 26, 2016 When it idles is there any wine? As if a supercharger type sound? Normally it can only be heard when warm. If so our 26/30's timing belt was simply too tight, replaced cam gears and timing belt and backed it off a notch; no worries. Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7734266 Share on other sites More sharing options...
SkudR33 Posted May 26, 2016 Author Share Posted May 26, 2016 Both tensioners are spinning freely, no issues there. Also the belt does not whine at all - seems to be tensioned fine. Is it possible that the belt is faulty? Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7734312 Share on other sites More sharing options...
tridentt150v Posted May 26, 2016 Share Posted May 26, 2016 Wasn't sprayed with TAC2 or something was it? A coolant leak spraying onto the belt??? Seems unusual. Time to replace for peace of mind. Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7734375 Share on other sites More sharing options...
SkudR33 Posted May 26, 2016 Author Share Posted May 26, 2016 Wasn't sprayed with TAC2 or something was it? Honestly feels like it was! Lol I definitely didn't spray anything on it when I installed it. There is abit of oil build up around the bung that I've put in place of the VCT solenoid but the black crap that's building up on the belt is just way too tacky to pass as oil build up. It seriously feels like that black gasket maker paste... I'm gunna have to replace the whole timing kit - timing belt is way too serious to be overlooked. Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7734409 Share on other sites More sharing options...
Ben C34 Posted May 26, 2016 Share Posted May 26, 2016 Could be rubbing on the timing belt cover. Mine did the same. Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7734463 Share on other sites More sharing options...
SkudR33 Posted May 26, 2016 Author Share Posted May 26, 2016 Could be rubbing on the timing belt cover. Mine did the same. Front top cover isn't on... Can I ask did the residue it was creating feel tacky sticky. Like I couldn't get the black shit of my hands without giving them a decent scrub in mechanics soap. It could possibly be rubbing on the bottom cover or on one of the bearings... Thanks for the opinions! Really trying to get as much info as I can before I replace the timing kit. Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7734503 Share on other sites More sharing options...
tridentt150v Posted May 26, 2016 Share Posted May 26, 2016 Time to take the lower cover off.........and watch the missing socket fall out 1 Link to comment https://www.sau.com.au/forums/topic/465009-excessive-wear-on-timing-belt-rb3025/#findComment-7735176 Share on other sites More sharing options...
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