Crankshaft pulley failure!? beware of the alternator and tensioners! JTD, Mjet and more!

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Crankshaft pulley failure!? beware of the alternator and tensioners! JTD, Mjet and more!

Рет қаралды 14,547

Күн бұрын

Hello guys, here we can see how and why a crankshaft pulley can fail. This video is not just for mjet and jtd engines but for all makes and models.
If you liked this or any other of my videos, please SHARE with your friends, hit the LIKE button and consider SUBSCRIBE!
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Пікірлер: 54

@DashCamSerbia 3 жыл бұрын

I had no idea that the alternator pulley is supposed to freewheel in the opposite direction. Thanks for the info.

@alfaromeonoproblem 3 жыл бұрын

Thank you very much for watching my videos

@DashCamSerbia 3 жыл бұрын

@@alfaromeonoproblem They are great.

@vrh13 3 жыл бұрын

Just found this video. Thx for the info! Much preciated! Replaced crankshaft pulley on my Astra H 1.9 16v 120hp 3 times now. And all in only 50k km for 3 pulleys. It started knocking again. But with this knowledge now I'll check alternator and it's pulley first and tensioner. Sick and tired with these replacement parts, cause in 150k km it was on original parts, but replacement parts are awful. And also, will try Dayco pulley this time around, cause last 2 times it was put Concitech and it's kinda shit.

@alfaromeonoproblem 3 жыл бұрын

Hello. Thank you so much for watching! This month two more now videos are being released for this issue. Hope you are around to see them

@vrh13 3 жыл бұрын

@@alfaromeonoproblem I'll watch it closely. Thx for reply

@alfaromeonoproblem 3 жыл бұрын

Thank you

@kernowmcrae 6 ай бұрын

Makes total sense, buying one this weekend which has just had the pulley, belt and tensioner replaced but still on the same alternator...

@alfaromeonoproblem 6 ай бұрын

Thanks for watching

@BK-it6te 6 ай бұрын

I welded the pulley temporarily till the new one comes it workers perfectly better then before

@markleman1233 2 жыл бұрын

Replaced my pulley 3 times in 35k miles now will check the cause u mentioned. Also I think the underneath cover plastic / shield is completely gone, so the dirt and water coming from the tire (splashing on the pulley) could (possibly) cause the wear out too…

@alfaromeonoproblem 2 жыл бұрын

Hello. Yes, check that. To avoid water and most I always recommend to keep the plastic guard on the side and beneath the engine

@philnotley5138 Жыл бұрын

Very Interesting video explains the situation well I’ve just got a nasty vibration started at this end of my Renault scenic engine I know the drive belt and water pump are good they recently renewed my suspicions now fall on this pulley belt and associated tensioners etc the possibility of bits of shredded belt getting on the drive belt is quite scary that’s game over !

@alfaromeonoproblem Жыл бұрын

Thanks for sharing, and for watching the video

@rationalgazer 2 жыл бұрын

Great video. Informative and careful in explanation. Really appreciate it!! All the best, brother.

@alfaromeonoproblem 2 жыл бұрын

Hello. A very early video of mine, very nervous and stumbled. But I'm glad you liked it! Hope I can continue to do good ones!

@shtoksy 2 жыл бұрын

THANK YOU!!!! BIG THANK YOU!!! So so useful video! Just what I was wondering and needed as information!

@alfaromeonoproblem 2 жыл бұрын

Thank you very much! Share this with your friends

@shtoksy 2 жыл бұрын

@@alfaromeonoproblem ofcourse!

@BK-it6te 6 ай бұрын

Excellent video the crankshaft pulley is €500 Euros from Alfa And auto Doc 115 Euros

@alfaromeonoproblem 6 ай бұрын

Buy DAYCO but do not buy autodoc

@BK-it6te 6 ай бұрын

@@alfaromeonoproblem thank you , do I need to drop the Engine on my 159 jtdm 2.4 to change the timing belt ?

@alfaromeonoproblem 6 ай бұрын

@BK-it6te hello. You can do it in place. Not easy, but you can

@Venturi11 Ай бұрын

Cars with timing belts are terrifying

@alfaromeonoproblem Ай бұрын

Ever seen a truck belt? Those ones take out a lim

@BK-it6te 6 ай бұрын

I will arc weld the crankshaft auxiliary pulley till I get the new part

@BK-it6te 6 ай бұрын

Can you do one video on 159 Jtdm 2.4 of the easiest way to change the alternator belt?

@alfaromeonoproblem 6 ай бұрын

There is no easy way... Factory says to remove the engine. There is a way but it's very difficult. A video for some day

@BK-it6te 6 ай бұрын

What we do without you ,

@alfaromeonoproblem 6 ай бұрын

I just try my best

@RicoSF415 Жыл бұрын

My alternator was tested to be fine. My main crankshaft pulley is wobbling. Im gonna change. You think a wobbly pulley can cause all my lights to flicker? Thanks

@alfaromeonoproblem Жыл бұрын

Hello. No, it will not. The flickering is the alternator.. The pulley can wobble on the inside, it's fine. On the belt area cannot wobble.

@RicoSF415 Жыл бұрын

@@alfaromeonoproblem ok thank you very much.

@alfaromeonoproblem Жыл бұрын

Thanks for watching

@CraCkerX25 3 жыл бұрын

Thanks for the video! I have one question, I've replaced the crankshaft pulley about 40k kilometers back, it was torn apart just as you show. But now I'm hearing a knocking noise from that area that is correlated to the engine speed. I've removed the belt and the noise stopped, but I'm not sure if it's the tensioner or the pulley or something else in this section. It is a constant "clanking" noise. If i turn off the climate compressor, the noise remains, so it's probably the pulley or the tensioner (or maybe the alternator?). The tensioner is visibly vibrating a lot when idling. Do you have any thoughts? Thank you.

@alfaromeonoproblem 3 жыл бұрын

Hello. Thank you very much for watching my video. If the tensioner is vibrating at idle you must have a problem on the alternator pulley. Do not replace the tensioner just yet. Check first the alternator pulley. If it is locked, replace it. And consider replacing the hole unit.

@fullycircle262 3 ай бұрын

Nice video i just subscribe ! On my 1.9 cdti my tensionser worn out and shred the aux belt, but i saw that the inner seal around the crankshaft pulley start to pump out a little, i guess it's more safe to change the crankshaft pulley too ?

@alfaromeonoproblem 3 ай бұрын

Hello. Thanks for watching and for the subscription. I do not agree on replacing parts just because. I like to replace only the affected ones and find out the reason why it's happening. Like the alternator pulley the makes the crankshaft pulley "explode ". A crankshaft seal coming out can be a poor quality one, can be overpressure on the crack case, or it can be bits of old belt that cutted and spun the seal

@fullycircle262 3 ай бұрын

@@alfaromeonoproblem Ok thanks

@user-po9sg3ks4p 2 жыл бұрын

What if I changed all my pulleys and crankshaft pulley would the belt be quiet?

@alfaromeonoproblem 2 жыл бұрын

Hello. Have a more detailed video for that. But if you replace the alternator pulley, the crankshaft pulley and the automatic tensioner yes, it will all be good. kzfaq.info/get/bejne/fZqYrdF0qNnRY2g.html

@user-po9sg3ks4p 2 жыл бұрын

I have a noise pulley and can’t find which one if I change all the pulleys and belt would that solve the problem can you let me know thanks

@alfaromeonoproblem 2 жыл бұрын

@BK-it6te 6 ай бұрын

Will it bend the valves ? My one the auxiliary belt was vegged in the timing belt

@user-im2xe1iz8y 6 ай бұрын

Would this cause the belt to melt off?

@alfaromeonoproblem 6 ай бұрын

Something seized

@richardkerman5127 3 жыл бұрын

Hello my crankshaft pulley is seized stuck on I've been able to remove the 4 bolts and normally with a few taps it falls off but on my girlfriend's it's stuck fast. It's due a timing belt and waterpump I've soaked it in wd40 but it refuses to budge. I've not removed the crackshaft pulley bolt but don't normally need to. Do you have any tips??? can I remove the main bolt and the inner pulley stay in place as it's not timming locked off yet

@alfaromeonoproblem 3 жыл бұрын

Hello. That is strange.. is the pulley a bad quality and rust welded to the inner pulley? Or someone used glue? Well, you can remove the center bolt, left thread by the way, but time the engine first. Because it will come out. You can try a puller. But I'm afraid the hole set may be compromised. Buy only dayco pulley and original timming belt inner pulley. No glues, just sinthetic grease. Respect the torque. Reply more news.

@richardkerman5127 3 жыл бұрын

@@alfaromeonoproblem Hi thanks for speedy reply. No glue used I assure you as I installed the engine due to waterpump failure at 38k and 1 injector seized so was unable to inspect damage up top this was many years ago all attempts failed with pullers and refused to pay £150 to be removed with hydrolics anyway back to this pulley I installed replacement engine as once I priced it all up I could get complete engine much cheaper the engine is now from a Saab 93 1.9 Tid 150 bare engine with all other parts original I've just then tried the breaker bar jammed against floor at 90° and cranked it quick blips injectors unplugged and still won't budge is the Saab same left hand thread clockwise to loosen if so I'm lucky I didn't snap the bolt 🙈 I only wanted to crack it off to get rust free in center so I can replace pulley and lock engine with tool and finish job .

@alfaromeonoproblem 3 жыл бұрын

Yes, the engines are similar, the bolt is left. But the head is not has good. The valves are a bigger diameter on the guides, the quality ouverhall is better. You can use it, but it's not quite the same. Casting, general quality, etc. You best bet is to replace the timming gear all together

@richardkerman5127 3 жыл бұрын

@@alfaromeonoproblem it's off I cut it off I was replacing the lot drive belt kit timming kit Inc WP SKF genuine from auto doc Germany thanks anyway mate pulley is dayco

@alfaromeonoproblem 3 жыл бұрын

Ok. Thanks for the reply.

@wazienkhairani8869 2 жыл бұрын

Do you have video for removing alternator alfa romeo 156 v6 engine? I really need it. Help me

@alfaromeonoproblem 2 жыл бұрын

Hello. Lots of ways to do it, removing the lower engine mount twists the engine enough to reach the alternator. Then to pass between the subframe and the engine you may have to undo the timming belt b side engine mount to create space to remove it completely. And of course, start by removing the exhaust. Hope it helps