bag of rocks sound below 2500rpm gone above

[sh0rtlife]

Originally Posted by Neinris

You might want to go ahead and remove the oil pan and check for more debris there, also look in the oil pickup tube.

because i didnt want to have an engine brace in my way i have a stand under the engine supporting it on the lift...or the pan would allready be off

i still have to find the other timing guide bolt and washer.......no clue where they are

should also mention if flushed the engine out with a gallon of parts washer to get the shavings and gunk out as much as possible

timing covers on so ill get things bolted up and the pan off and see what kind of nasty comes out...cracked open the old VVT and it basicly dumped fine glitter

[Compeer]

Originally Posted by sh0rtlife

because i didnt want to have an engine brace in my way i have a stand under the engine supporting it on the lift...or the pan would allready be off

i still have to find the other timing guide bolt and washer.......no clue where they are

should also mention if flushed the engine out with a gallon of parts washer to get the shavings and gunk out as much as possible

timing covers on so ill get things bolted up and the pan off and see what kind of nasty comes out...cracked open the old VVT and it basicly dumped fine glitter

get yourself a thread repair kit and you can drill and put thread repair inserts in, Glad its not the bottom end bro thats the main thing all of this stuff is easy compared to having to find a new motor.

I can't believe Toyota never put a stethoscope on the engine to listen for where the rattle was, below 2.5k rpm rattle is a dead giveaway to chain tensioner problems. My mechanic friend who taught me to swing a wrecnh shown me how to use a large screw driver as a stethoscope by placing the handle end agaisnt your ear and the other end agaisnt where ever you think the rattle is and listen while it runs, you can narrow it down a lot before you start. Worth remembing if you have a rattle in the future.

[sh0rtlife]

Originally Posted by Compeer

get yourself a thread repair kit and you can drill and put thread repair inserts in, Glad its not the bottom end bro thats the main thing all of this stuff is easy compared to having to find a new motor.

I can't believe Toyota never put a stethoscope on the engine to listen for where the rattle was, below 2.5k rpm rattle is a dead giveaway to chain tensioner problems. My mechanic friend who taught me to swing a wrecnh shown me how to use a large screw driver as a stethoscope by placing the handle end agaisnt your ear and the other end agaisnt where ever you think the rattle is and listen while it runs, you can narrow it down a lot before you start. Worth remembing if you have a rattle in the future.

honestly the rattle was "inconsitent" at best at lower milage...and if you think about a guide being "not tight" and slowly getting looser and looser with milage, but the tensioner is always taking up the slack, its going to present as a vvt sticking a lil on a cold start...in fact thats what ive ALWAYS assumed it was..as it would happen cold but never really did it hot IE when it would have some pressure built up

basicly right up untill the last bolt walked out of the block, between the VVT adjusting for the slack and the adjuster taking up the slack it was holding the "majority" of the rattle at bay...and after that last bolt walked out it pushed the guide into the block, to which the adjuster could still maintain to some extent..it wasnt untill the block got worn and the adjuster both wore down and snapped an end off that the adjuster couldnt compensate and the rattle became a full time deal below 2500rpm...befor e that point the rattle would never last more than a few mins after warm up on the worst days..and would useualy quiet out after a couple second hot..so everything pointed to just a weird VVT or exhaust rattle...hell i steth'd it a few times and deemed it to a minor VVT issue

between the crank pots blowing.....sign 1, then pulling a crank pot with shavings on it(less than 1000 miles) sign 2 and then ratlle constant below 2500rpm sign 3..it was obvious something had let go..but honestly i still figured it was a VVT issue