Mechanics Don’t Want You to Know This

Why Some Cars Have Timing Chains and Some Cars Have Timing Belts

⬇️Scotty’s Top DIY Tools:

Scotty on Social:

This is the people's automotive channel! The most honest and funniest car channel on YouTube. Never any sponsored content, just the truth about everything! Learn how to fix your car and how it works. New video every day! I've been an auto mechanic for the past 53 years and I'm here to share my knowledge with you!

Scotty Kilmer is a participant in the Amazon Influencer Program.

#shorts #savagescotty #carrepair #carsofyoutube #auto #car #cars #funny #mechanic #diy #howto #timing #timingbelt #timingchain

[dragospahontu]

In some engines the chains stretch prematurely.

I've seen some belts last more than chains.

[Hassan-yzyr]

Remember folks, whenever ur changing timing belt or chain, also replace the Water pump! They usually come as a kit for most vehicles

[shane]

I miss timing GEARS. Never break, never stretch, always accurate.

[xiongher]

People please find out I'd ur car has a timing chain or belt so no mechanical shop can rip you off. Chains are made to last thr whole duration of thr engine/car. Timing belt on the other hand should be at least check at 75k to 100k miles and change if necessary. Mechanics charge an arm and leg for these services. And always appreciate Mr Scotty, even these minute long video is really helpful to thr viewers 👍

[Ryan_]

You forgot to mention replace the hydraulic tensioner at the same time when replacing the belt, check the idler bearings too…

[HR-wdcw]

One quick tip: Some older vehicles use the timing belt to drive things like the oil pump and water pump. On some older vehicles, like the older Hondas, it was also a wise idea to change the water pumps when you did the belt since the belt drove the water pump, and the pump itself is only about $100, but the labor to replace it (and the belt basically, because you have to take off the belt to remove the pump) is where much of that cost comes from (as I think it's about a 3-4 hour job on a 1990's era Civic at least). So check and see if that stuff is recommended (I always had my water pumps replaced when the belts were changed so I wouldn't have to worry about the pump going out between belt changes on my Civic).

[_zigzak]

“If it’s made right” laughs in ford, gm, nissan, bmw, and audi timing chains*

[crazypete]

Had a vehicle towed in with a timing belt that snapped while driving. While pulling it out there were all these perpendicular discolorations along the cracks... Turns out this customer was told to replace his cracking timing belt and he decided to "fix" the belt with superglue.... The glue actually deteriorated the rubber belt more! Now instead of replacing the timing belt he has to replace the engine!

[kevingarofalo]

It is essential to change the timing chain and components on GM’s supercharged LSJ engines. They are known to go bad, the OE hydraulic tensioner had issues. If you don’t change the tensioner early enough, the chain can jump timing and this is an interference engine and you will bend valves and damage pistons.

[DeerHunter]

Some cars from 90 with belts had cheap ones that broke at around 50 k miles like Ford Escorts with Exploder Engines

[bigcrowfly]

Every Honda/Acura V6 ever made had (and new ones still have) a timing belt. But they are still better than the Ford/Lincoln/Mazda DOHC V6 which although they have a Timing Chain, have chain stretch and failing tensioners well before 100k miles.

[nosheen]

Thank you for this scotty. I recently bought a '05 Lexus IS250 with 113, 000 miles. Its got a timing chain.

[texomatinker]

Not to be critical, but I expected you to mention the big WHY it is especially important to change those belts in an interference engine.

[janearmstrong]

The main trouble is, a lot of modern timing chains are made of Give me a dry belt any day.

[nec]

People outright denouncing timing belts are clueless, it's just more preventative maintenance. The first gen Tundra's use a timing belt, change every 90kmiles or every 7 years, my tundra has 270k miles on it, that's 2 belts. If you can't have preventative changes done to your vehicle twice over the course of 20 years, doesn't matter if you have a chain or not, you probably don't have enough awareness to make a vehicle last that long anyways.

[edwardanthony]

Best was the straight 6 Nova with timing gears! Indestructible & too sane for the greedy insanity.

[evisorator]

Maybe a stupid question but why don’t all cars just use a timing chain or gears as some people in here said? Is it a more money made by selling belts or that you can’t have a chain on certain types?

[jannathan]

When u hear a rattle thats when the chain is streched and tensioner and guide rails are worn and can jump a tooth.

[jeremyjeremy]

Belt, water pump, tensioner and rollers. Just do it all while you’re in there. It’s about an $800 ish job at most shops…what does an engine costs if the belt breaks?

[nobandfan]

Scotty: Change your belt every 100k miles
Me: *Suffers ptsd from 99’ Honda timing belt change* How can a bolt be torqued down that much? Used a 3 foot breaker bar with a 4 foot iron pipe extension. Still took 3 people to loosen that bolt.