At 55,000km on the odometer, my 4-year old Pulsar was due for an oil change. So after returning from a short Sunday morning ride to JB, I went to LAB and got myself some Motul 7100 15W50. Changing engine oil is a relatively simple maintenance procedure, and I’ve almost always been doing it myself. But today’s oil change was anything but typical.
As I drained the used engine oil and removed the magnetic oil strainer, my heart skipped a beat when I witnessed this:
For those who have been following my blog, you’d probably know that I experienced an engine breakdown due to a catastrophic camshaft bearing failure less than 1 year ago. In fact, I was almost stranded in Chiang Mai, Thailand, some 2,500km away from home where there wasn’t any Bajaj dealership in the country at all. I had to FedEx the engine parts up from Singapore to get the bike fixed. Similarly back then, the magnetic oil strainer caught a massive amount of metal shavings from the grounded down camshaft bearing.
Thankfully, this time around, I caught the problem early and it didn’t (or rather, HAVEN’T) lead to an engine failure. The bike was still ride-able, but definitely extremely concerning. The top part of the engine (from the piston and cylinder block upwards) were mostly replaced at the last teardown. The engine also sounded like it was purring along nicely, and so I suspected that the failure this time might be due to the gearbox or the lower part of the engine.
And so I sent it in to Universal Motors on Monday for the mechanics there to diagnose. Bad news – an engine teardown (again) was necessary to ascertain the extent of damage and the offending component.
After a complete teardown of the engine, the lead mechanic, Ah Tek, found the offending component – it was the output shaft bearing that was failing.
And since the engine was opened up, and at the recommendation of Ah Tek, I took the opportunity to replace many of the other bearings and stuff – including the timing chain, valves and camshaft bearings that was replaced just a year and 22,000km ago.
Bajaj quality. This is disappointing… So very disappointing.