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Post by draganlada on Apr 14, 2006 20:28:37 GMT 11
Today I have lost big bolt which holds main pully to the cranckshaft what coused los of power steering belts and lots of noise produced by pully wobbling around.
I have been driving like that for almost 100 km back to home with no power steering.
Question is if there can be any internal damage to the engine ( engine was runing fine except for the noise) and where can I buy new bolt (holden spare parts maybe).
Is it there any trick I should be aware of or I have to simply screw new bolt in.
Please help,it is long weekend and I'm without my truck.
Ones again I have to rely on my trusty NIVA ( thanks god I didn't listen to my wife and sell poor thing ) !
Dragan
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Post by geeves on Apr 15, 2006 8:35:07 GMT 11
Been there done that.Do NOT drive it till its fixed.I was lucky but the next part to fall off is the timeing belt pulley.
What has happened is that your trusty garage that last did the timing belt undid this bolt instead of the 4 that hold the pulley onto a spacer that is held onto the crank by this bolt.
behind the pulley is a spacer with a keyway in it This keyway will be stuffed the slot it sits in an the crank should be ok but check it. If one pully has already fallen off check the timing belt pulley as well It would also be a good time to replace the timing belt. All these parts are common to the 2.8 Rodeo engine. The timing cover probably has worn through. On mine we just patched it.
That bolt has a huge torque Mine was tightened with a long bar and 4 pound hammer.
If you havent alreadt got it there is a 4jb1 manual on my gmail account or francesco can send you a copy on cd
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Post by draganlada on Apr 15, 2006 9:25:12 GMT 11
Last week car was at the mechanic shop for changing of injection pump so probably they stuffed it up .
Thanks Alan
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Post by geeves on Apr 15, 2006 16:05:29 GMT 11
They had no need to touch that bolt. Mine took 70000km to come loose
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Post by draganlada on Apr 15, 2006 19:32:17 GMT 11
This afternoon I had closer look to see what hapened.By undoing cooling fan and water pump pully I found 5 mm spacer between pully and water pump which I think should be located betveen fan and pully (corect me if I'm wrong).
Groove ( keyway ) in the big spacer behinde the tripple cranckshaft pully is widened by 20 mm to the one side (huge damage) but " tongue" ( key ) on the cranckshaft is allso litllebit damaged (worn out ) and it seemes to be loose a litlle bit ( is it posible to replace tongue ? )
Timing belt cover is bit damaged but no big deal.Timing belt and sprockets are all fine ( thanks God ).
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Post by draganlada on Apr 15, 2006 19:44:04 GMT 11
Alan how do I stop crankshaft from turning when tightening big bolt with long bar and hammering by heavi hammer ?
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Post by geeves on Apr 15, 2006 20:40:37 GMT 11
From memory we just put it in gear and had someone stand on the brake but this is impossible if you have an auto. Other more correct way would be remove starter and jan a screwdriver in the ring gear. My motor has good compresion This also helps
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Post by Harry on Apr 16, 2006 11:51:12 GMT 11
Hey Dragan,shouldn't it be the garage's problem now?
Harry.
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Post by draganlada on Apr 16, 2006 13:07:10 GMT 11
Yes,Harry,but that means I will be without truck for another week ( it has been out of order for 8 weeks due to injection pump repair ).
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Post by geeves on Apr 16, 2006 16:38:00 GMT 11
8 weeks Ive been quoted same day service for mine Drive in drive out. Its only the outer seals though.
I would be asking them if they touched this bolt though because once this bolt falls out the only thing holding the camshaft pulley in is the tension on the fan belts. If they fall off its probably byby engine. Didnt you say yours fell off. The amount of wear in that keyway was the same as mine and concensus on mine was it had been loose for a long time
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Post by draganlada on Apr 16, 2006 21:40:06 GMT 11
Alan you are tallking about outer seals but my pump was stuffed up internaly ( $ 1.8 K ) + new pump housing. Bigest problem was to get new pump head coz they had to get it from Japan or Germany ( 5 week to get it here ) . I will try to scan recipt and send it to Francesco to put it up here.
I have lost the bolt and both aircon/power steering belts. Puly was holding on only by alternator/water pump belt.
but " tongue" ( key ) on the cranckshaft is allso litllebit damaged (worn out ) and it seemes to be loose a litlle bit ( is it posible to replace tongue ? )
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Post by geeves on Apr 17, 2006 8:24:31 GMT 11
Talk to an engine reconditioner. They may be able to machine a new keyway or have some other way of fixxing it hopfully with the motor in place. Otherwise cost wise you might be looking at a second hand engine as cranks aint cheap. If they can remachine the keyway that will mean engine out and crank out so it would be a good time to do rings and bearings so there would be little change from a grand.Hopefully its not that bad
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Garth
Isuzu Senior
1989 Bighorn Irmsher R LWB
Posts: 164
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Post by Garth on Apr 17, 2006 9:19:40 GMT 11
Definately get in touch with the guy's that did the injector pump and look at compensation for the damage that has been done, they should be able to supply you with a courtesy car as well if they are a decent repair shop. If they had touched that bolt when they did the injector pump timing then it is up to them to fix it. Hope you can get things sorted soon,
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Post by mudgrip4 on Apr 17, 2006 20:23:09 GMT 11
Draganlada - I had this problem with mine years ago - the crankshaft end was burred after the pulley came loose and slogged out the keyway etc. Could have been hugely expensive - motor out for crankshaft repair etc but discovered a bloke in Dunedin NZ who has a chemiweld? technology and fixes the crank ends in place. Has never had a failure and highly recommended by diesel specialists etc. They fly him all over NZ to do just this job with motors in place.Fixed mine perfectly. His name is Keith Dixon, 03 453 0501 Dunedin. If you are left with having to fix it, give this guy a call and ask him who in Aus has this technology for you. Very effective. And talk with your isuzu dealer before tightening pulley bolt as from memory it has a specific torque setting which you must get dead right - it was a dealer getting this setting wrong which caused my problem also. Good luck - Mike.
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Post by draganlada on Apr 21, 2006 21:55:00 GMT 11
How about if I use some Locktite glue on crankshaft centre bolt so it can't become loose again ?
I have faund out I can't use harmonic balancer of holden rodeo coz it has gear driven timing ( not belt as Mu ) ,pully and " spacer segment " behind it are one pice ( has not 4 bolts to separate each other ) and rodeo's "spacer segment" has some kind of metal shield to cover oil seal around crankshaft sprocket.
I have trouble find timing belt plastic cover ( my one is damaged ) coz you can find them only on japanese used inports. Will try plastic weld it up .
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Post by geeves on Apr 22, 2006 19:54:37 GMT 11
Theres 20 different locktites. Thats why I said talk to a reconditioner they will know which one might work. The plastick cover on mine just got glued with rtv.
Its annoying how Holden NZ will supply the world as long as you pay but Holden Aus are most unhelpfull
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