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RVR HSG Head Rebuild - Now vibrating violently/no power

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89 replies to this topic

#1
Hyper_Mike

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Hey,

 

Sooo I had my head rebuilt and picked up the car today. It was just as the mechanic was closing. On idle the whole car vibrates really bad and it stays like that all the way up to 3000rpm, then smooths out a bit, but still no where near as smooth as it was when i took it in to have the work done.

I am taking the car back tomorrow morning, however do you guys have any idea what this is or could be?

 

I was thinking maybe the timing?

 

Cheers, Mike



#2
jack be nimble

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Balance shaft timing, cam timing.
4g93t jumbuck conversion. PRANGED 18/3/12, CHECK MY MEMBER RIDES Page 11. no serious human injuries.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
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#3
Hyper_Mike

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Does anyone know what the cam timing it meant to be at all? The car seems really low on power as well :(



#4
evo-gsr

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Balance shaft is 180º out. 100%
[qoute name="BMGTZ" post="331212" timestamp="1467451744"]I don't know anything ...
Trust in the master of taxis.... He will set you straight[/quote]

#5
evo-gsr

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Remove the balance shaft plug on the rear side of the cylinder block and insert a Phillips screwdriver {shank diameter 8 mm (.32 in.)} through the hole. The balance shaft is in the correct position if the screwdriver can be inserted at least 60 mm (2.4 in.). If the inserted depth is less than this only 20-25 mm (.8-1.0 in.), the oil pump sprocket must be rotated one full turn and timing marks realigned. Recheck the balance shaft position using the screwdriver to ensure that it can be inserted 60 mm (2.4 in.) or more. Keep the screwdriver inserted until timing belt installation is complete (Figure 13).NOTE that there is an easier way to do this. Simply rotate the mark on the oil pump sprocket until it is pointing straight up, and let it go. If the sprocket rotates towards (counterclockwise) the timing mark on the engine, the oil pump sprocket is aligned correctly. If it rotates away (clockwise) from the mark, spin the sprocket a full turn and test again, and it should properly rotate towards the mark now. Now line the mark on the sprocket back up with the mark on the engine. This avoids having to remove the rear access bolt entirely.Caution:MAKE SURE THE BALANCE SHAFT IS PROPERLY POSITIONED. It is possible for the oil pump sprocket timing marks to be properly aligned, and have the balance shaft out of phase. This could result in a SEVERE engine vibration.
[qoute name="BMGTZ" post="331212" timestamp="1467451744"]I don't know anything ...
Trust in the master of taxis.... He will set you straight[/quote]

#6
evo-gsr

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96-013_zpse09c8985.gif
[qoute name="BMGTZ" post="331212" timestamp="1467451744"]I don't know anything ...
Trust in the master of taxis.... He will set you straight[/quote]

#7
Benzo4gT

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An easier way is to rotate the balance shaft (oil pump one) and see if it rests in the timed position.
 
 
The screwdriver thing will work, but I find it easier to just turn it slowly and find where it wants to rest.

 

EDIT: Sorry Jamo, just read your post properly, you said it perfectly :thumbsup:


Edited by Benzo4gT, 30 January 2014 - 09:22 AM.

Bit of a tool, and owner of "The Turdis" - Hervey Bay

 

 

 

 


#8
Benzo4gT

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On idle the whole car vibrates really bad and it stays like that all the way up to 3000rpm



Don't tell your missus, she'll end up sitting on the bonnet instead of the washing machine LOL  :P


Bit of a tool, and owner of "The Turdis" - Hervey Bay

 

 

 

 


#9
Hyper_Mike

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Thanks so much guys! I can almost guarantee this is what it is, they might have just lined it up.

I'm still taking it back there to get them to have a look. Shouldn't take them too long should it?

 

 

Cheers, Mike


Edited by Hyper_Mike, 30 January 2014 - 11:55 PM.


#10
evo-gsr

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Its a bit of fucking around. The timing belts and all the covers have to come off. So might take a couple of hours depending how good they are...going off there last efforts they arent exactly 100%  competent.


[qoute name="BMGTZ" post="331212" timestamp="1467451744"]I don't know anything ...
Trust in the master of taxis.... He will set you straight[/quote]

#11
Hyper_Mike

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Yea thats true mate! I have been without the car for 9 days already :(

Hopefully get it back tomorrow arvo haha!!


Edited by Hyper_Mike, 30 January 2014 - 11:55 PM.


#12
Hyper_Mike

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Would this be causing the loss in power at all? Or is that more likely cam timing?



#13
Connor

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Yea thats true mate! I have been without the car for 9 days already :(

Better get it back tomorrow arvo haha!!

 

It has been 48 days since I drove mine :(



#14
TBOWGN

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Thats crap man! You take your car somewhere and expect them to sort it and it's coming back to you worse than when you gave it to them.... Call Gavin, he'll sort you out.


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#15
vr401

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Would this be causing the loss in power at all? Or is that more likely cam timing?


I don't think it should. They must have done something else wrong?
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#16
Hyper_Mike

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Yea man, I realllllyy hope I get it back tomorrow, then i'll wind the boost up a bit!!



#17
vr401

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Tell them to make sure not to damage crank angle sensor once they do it. It may cause you headache.
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#18
Hyper_Mike

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God dammit, anything that can go wrong with this will, I can see it happening!



#19
Connor

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God dammit, anything that can go wrong with this will, I can see it happening!

 

 

Mine got fubar'd, here is the one I am replacing mine with http://www.ebay.com....984.m1439.l2649



#20
Hyper_Mike

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Oh well heres to hoping I get some good news tomorrow afternoon!!


Edited by Hyper_Mike, 30 January 2014 - 01:06 PM.



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