Zackmaan Posted July 18, 2015 Share Posted July 18, 2015 Hi all, As the title states, crank pulley issues! I've had a look on the forum and tried to search for the same problem but due to me just being a complete and utter tool, I have no idea if the harmonic balancer is the part that's causing me grief.. So, it started when I the outer ring of the crank pulley came away (common problem) got a replacement from keron, got my mechanic to fit it however, now I feel a vibration when climbing through the revs? My cars a n/a manual, btw. Even when in neutral and I accelerate, I feel the steering wheel vibrate kind of thing. The mechanic who done the work doesn't specialise in jap cars but I've trusted him with all my previous cars. Any ideas on what it could be? I do apologise if my post is vague or if I'm not using the right names for parts lol but any help would be appreciated! Thanks Quote Link to comment Share on other sites More sharing options...
Mad Hatter Posted July 18, 2015 Share Posted July 18, 2015 park the car, run the engine and look at the pulley and aux belt. you can rev the engine with the throttle body and see if you can spot any wobble with the pulley. certainly worth an eyeball before you spend money at a garage with no info for them. Quote Link to comment Share on other sites More sharing options...
Zackmaan Posted July 19, 2015 Author Share Posted July 19, 2015 I checked before and did notice a bit of wobble on the pulley, is it that he hasn't torqued it correctly? Quote Link to comment Share on other sites More sharing options...
Mad Hatter Posted July 19, 2015 Share Posted July 19, 2015 (edited) Pulleys should never wobble... I think you've found your problem. Get it back to the garage SLOWLY! ive just replaced my crank pulley, you should also replace the bolt & washer at the same time (cheap direct from toyota) as most get knackered when being removed, mine certainly did. This is is the last place in the world you want a screwed up or cross threaded bolt and it the crank pulley (balancer) is wobbling it'll shake the whole engine as its rev increases. Maybe worth a second opinion if your mechanic let it go out the door like that! Edited July 19, 2015 by Mad Hatter (see edit history) Quote Link to comment Share on other sites More sharing options...
Dnk Posted July 19, 2015 Share Posted July 19, 2015 (edited) I didn't need replace the bolt or washer when I did mine and really don't see how any competent mechanic would get the thread crossed. If they have i'd go find a new one. The pulley is a very close clearance fit on the nose of the crank and if its wobbling as you say then it definitely needs looking at. Put a tipex line across the pulley as it'll show if its separating. Edited July 19, 2015 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
Mad Hatter Posted July 19, 2015 Share Posted July 19, 2015 competent being the operative word Quote Link to comment Share on other sites More sharing options...
Zackmaan Posted July 19, 2015 Author Share Posted July 19, 2015 you guys think I'll need a new crank pulley? problem i have is that around by me there doesn't seem to be anyone who is like a Japanese specialist (not that i know of, i live just outside of Birmingham) - also, whats the harmonic balancer then? because I've heard about it, is it part of the crank pulley? Quote Link to comment Share on other sites More sharing options...
Mad Hatter Posted July 19, 2015 Share Posted July 19, 2015 You don't need a Jap specialist, you just need a normal half decent mechy. Every car has a crank pulley, this one is nothing special. Your best option is to take the car back and get them to look at it. The vibration is a problem and all we know is you have seen the pulley wobble..... So, get someone hands on and see what they say. The "harmonic balancer" & "crank pulley" are the same thing. It is a crank pulley designed to balance the crank... A rose by any other name. Juat at for your info, this is the one I bought http://pages.ebay.com/link/?nav=item.view&alt=web&id=121600942927&globalID=EBAY-GB TDS-2JZ CRANKSHAFT PULLEY ENGINE 1JZGE/2JZGE/2JZGTE LEXUS GS300 JZS147 1993-1997 works perfectly and just for completeness I bought a new crank bolt from Toyota Chelmsford, only a few quid. All my works gets done a SETyres, local kwikfit style garage, nobody special. Quote Link to comment Share on other sites More sharing options...
Dnk Posted July 19, 2015 Share Posted July 19, 2015 (edited) you guys think I'll need a new crank pulley? problem i have is that around by me there doesn't seem to be anyone who is like a Japanese specialist (not that i know of, i live just outside of Birmingham) - also, whats the harmonic balancer then? because I've heard about it, is it part of the crank pulley? You don't need a specialist. I can fully recommend my local village garage who I have used for longer than I care to remember. They have done plenty of work on my mkiv tt and every car I've owned for the last 20 years. They don't charge specialist rates either. They're based not far from Solihull if that's any use to you Edited July 19, 2015 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
Dnk Posted July 19, 2015 Share Posted July 19, 2015 Can you run the engine and get a video on your phone of the crank pulley and post it up here Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 20, 2015 Share Posted July 20, 2015 Was it a new or secondhand pulley that was fitted? Personally I think a new one is worth the extra due to the labour cost if a used one proves faulty. If the old pulley had come loose and the engine continued to be run with a loose pulley it can damage the nose of the crankshaft and the keyway in the crankshaft. I have seen a couple of engines where the long term running of a loose pulley had scrapped the crank. Fitting a new pulley would not have fixed the issue. Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted July 20, 2015 Share Posted July 20, 2015 This is one of these items you buy new not second hand personally Quote Link to comment Share on other sites More sharing options...
Dnk Posted July 20, 2015 Share Posted July 20, 2015 I bought mine second hand off CW Quote Link to comment Share on other sites More sharing options...
and1c Posted July 20, 2015 Share Posted July 20, 2015 I didn't need replace the bolt or washer when I did mine and really don't see how any competent mechanic would get the thread crossed. If they have i'd go find a new one. The pulley is a very close clearance fit on the nose of the crank and if its wobbling as you say then it definitely needs looking at. Put a tipex line across the pulley as it'll show if its separating. I thought they were a stretch bolt????? meaning one use..! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 20, 2015 Share Posted July 20, 2015 No, they are big, and as such relatively lightly loaded, so can be re-used if not abused by heat, or over tightening. Quote Link to comment Share on other sites More sharing options...
Zackmaan Posted July 20, 2015 Author Share Posted July 20, 2015 hi guys, Thanks for all the replies, it was a new crank pulley from keron. when the outer ring came off the old crank pulley it was probably running for around 15 mins after that, i looked and just saw a loose belt and aimed to get it home (which i did very slowly). i will try and get a video up tonight or tomorrow of the car running. tomorrow is my day off work so I'll be speaking to my mechanic to see if he can have a look again and see if he can spot anything. i read on a forum that the bolt needs to be torqued (330 i believe) is this correct? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 20, 2015 Share Posted July 20, 2015 Yes, it needs to be very tight. If your old damper failed just because the rubber bonding failed, and not because it had come loose and had been fretting on the crank, then a new one should be fit and forget. The only real reason for an imbalance couple being evident, assuming it's on tight, is if the new damper itself is out of balance, which would be very odd. it is an imbalance vibration, and not a misfire? Quote Link to comment Share on other sites More sharing options...
keron Posted July 21, 2015 Share Posted July 21, 2015 Also has the plastic fan been hit? If any part of the viscous fan is cracked or any of it missing it will vibrate like mad. Off balances the whole engine completely. Quote Link to comment Share on other sites More sharing options...
Zackmaan Posted July 21, 2015 Author Share Posted July 21, 2015 The outer ring did hit the fan an take a chunk out of a couple of pieces on the fan blades, I've ordered another one so just waiting for that to get here Quote Link to comment Share on other sites More sharing options...
keron Posted July 21, 2015 Share Posted July 21, 2015 That's your problem. Even the smallest of it missing will cause it to shake all over the place! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 21, 2015 Share Posted July 21, 2015 Good man Keron, I hadn't thought of collateral damage to the fan! Quote Link to comment Share on other sites More sharing options...
Zackmaan Posted July 21, 2015 Author Share Posted July 21, 2015 Thanks guys! I'll fit the new fan when it comes and then let you guys know if it solved, crazy how something like that can have such an impact! Quote Link to comment Share on other sites More sharing options...
Iky Posted July 25, 2015 Share Posted July 25, 2015 320nm torque for the crank pulley bolt I'm sure. Just to be on the safe side.☺ Quote Link to comment Share on other sites More sharing options...
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