ednjdm Posted September 13, 2020 Share Posted September 13, 2020 I have a newly imported JDM 2005 Legacy GT with 93,000km. The timing belt has never been changed as far as I know, and I am aware that the Subaru recommended interval for timing belt is around 105,000 miles (~165,000km). However, since this car is 15 years old I was wondering whether it would be a good idea to replace the belt, since I have heard that just due to age of the belt that the rubber wears down and stiffens over time? I was hoping to avoid this until later simply due to cost, but also don't want to risk the belt snapping and ending up with damaged valves and/or pistons. Link to comment Share on other sites More sharing options...
Marvick08GT Posted September 13, 2020 Share Posted September 13, 2020 Yes, although it has a mileage it needs to be changed at, there is also a time factor involved. 105k miles (most recommend 60-80) OR 10 years. Good luck! Link to comment Share on other sites More sharing options...
shralp Posted September 13, 2020 Share Posted September 13, 2020 I would do it ASAP due to age. It’s probably on borrowed time at this point. Link to comment Share on other sites More sharing options...
Max Capacity Posted September 13, 2020 Share Posted September 13, 2020 Yep, I did the belt in my 09 Spec B, build date June 2008, in 2018, car currently has 93,000 miles. Better safe then sorry. IMO 15 years is risky. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Rhitter Posted September 13, 2020 Share Posted September 13, 2020 Do water pump and thermostat while you are in there. My OBXT build Link to comment Share on other sites More sharing options...
dgoodhue Posted September 13, 2020 Share Posted September 13, 2020 Subaru TB interval is 105 month (8.75 years) or 105k miles. You are obviously over that in time, I would change it because the EJ255 is an interference motor. Link to comment Share on other sites More sharing options...
ednjdm Posted September 16, 2020 Author Share Posted September 16, 2020 Do water pump and thermostat while you are in there. I've heard that doing the water pump is a waste of time as long as there is no leaks, since the OEM one is extremely reliable. Link to comment Share on other sites More sharing options...
Pleides Posted September 16, 2020 Share Posted September 16, 2020 Water pumps have seals which are made of rubber like your timing belt. It would be best to replace it while you're in there. Link to comment Share on other sites More sharing options...
Rhitter Posted September 16, 2020 Share Posted September 16, 2020 I've heard that doing the water pump is a waste of time as long as there is no leaks, since the OEM one is extremely reliable. Until they start leaking and you need to pull the timing belt off to replace it and you turn a $100 part into a $1000 job. My gates waterpump started leaking after 15k miles, so that was fun. Luckily that time around I replaced it myself so it was no big deal. I think it took 5 hours with someone helping me. When you think of a timing belt as a 100,000 mile / 10 year job. Sort of stupid to not spend the extra $100 and just do it all at the same time. My OBXT build Link to comment Share on other sites More sharing options...
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