Removing exhaust

[zxtyler]

Are you heating the bolts or the area around them?

 

[apexgt4life]

Are you heating the bolts or the area around them?

Yes just not sure how much heat i can apply

 

[Turboflash]

Often, I've seen customer sleds where the T50 exhaust bolts were tightened way too tight. I've seen customers really lean on a ratchet when putting them in. Official torque for these bolts is first 9 ft.lbs in criss-cross pattern, then final torque at 18 ft lbs.

 

[apexgt4life]

Got them out. Alot of heat and patience. Got nickel antisieze comming. Want to replace bolts as dont trust now. Order factory or hardware store. Mixed reviews on here

 

[DooZ]

3 years on stainless bolts and copper anti-seize with removal at least once a year with no problems....so far. I always use a thread cleaning chaser tap prior to reassembly to clean everything up, and torque to about 10 -12 ftlbs. I have to admit though, I don't put 1000's of miles on every year.

 

[Kuzzy]

My father replaced the bolts with studs, but there still is a bit of issue on a couple of the studs and clearance, as well we had an exhaust gasket blow out because at least one of the brass nuts came loose. so 2 steps forward, and 2 steps back, the gasket isnt cheap.

 

[apexgt4life]

Wtf yamaha. Was going to just order some new oem. Over 10 dollars a bolt. 60 dollars plus for 6 bolts. Thats insane. Was going to get new and nickel antisieze. Now its either hardware store or reuse. Old

 

[zxtyler]

I have gotten just plain hex head bolts from local hardware. no issues with our 4 winders. Quite inexpensive

 

[no1b4me]

I have gotten just plain hex head bolts from local hardware. no issues with our 4 winders. Quite inexpensive

Just replace with exhaust manifold hardware.

Example - Dorman 03413 (10.9/8mmx30mm) just cut 5mm off.... Easy peasy... Use nickle anti seize and torque accordingly.... Buy the kit and have enough for 2 turbo connectors.
Cheers

 

[Motorhead]

Factory threaded holes were the problem for me back when my 2017 was new!

Like many will attest to, it took a lot of patience and different techniques to get them out the first time! Even with heat mine needed to be screwed in and out a couple threads at a time!

Once I got them all out a thread chaser was needed to clean up the mess they created at the factory! I reused my original hardware except for two or three that needed replacement because of bending on their way out!

Once I cleaned up the holes and made sure to use Nickel anti seize! Copper did not work for me whereas it was my first anti-seize because it was easy to get locally unlike Nickel!

It’s been apart many times since without problems! Damn Yamacats are awesome but are also VERY high maintenance, unlike nothing I have ever owned!

 

[Kuzzy]

Running atap through the threads is a must, but the housing is very hard, it's like 1/8 turn ahead and 1 turn back, repeat once more than blow out the hole. Probably took me 40 min to do all the holes, I really didn't want to snap a tap off

 

[CMR]

Running atap through the threads is a must, but the housing is very hard, it's like 1/8 turn ahead and 1 turn back, repeat once more than blow out the hole. Probably took me 40 min to do all the holes, I really didn't want to snap a tap off

I did just that last winter on my buddies zr 9000. Using a 4 flute tap. I spent 1 1/2 hrs. grinding out the tap with a dremel. 4 flute taps are a no no.

 

[Motorhead]

Cast Iron is hard and takes the heat well!

 

[apexgt4life]

Running atap through the threads is a must, but the housing is very hard, it's like 1/8 turn ahead and 1 turn back, repeat once more than blow out the hole. Probably took me 40 min to do all the holes, I really didn't want to snap a tap off

Wow i would think just a thread cleanup would be easy on the tap. Probs should go beter than my hf tap set then.

Is tap a m8x1.25 i assume and or is a thread chaser a differnet tool?

 

[Kuzzy]

I did just that last winter on my buddies zr 9000. Using a 4 flute tap. I spent 1 1/2 hrs. grinding out the tap with a dremel. 4 flute taps are a no no.

I used a spiral flute, being a machinist has its perks lol