Turn Crankshaft 80 series

Submitted: Thursday, Jul 15, 2010 at 13:17
ThreadID: 80090 Views:7870 Replies:8 FollowUps:2
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Ok, putting a new water pump in my HZj80 cruiser today. Gotta take the timing belt off. Says in the book "rotate crankshaft until...." ok, you gotta line the points up but ah, how the heck do you rotate the crankshaft ?!?
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Reply By: Member - Tour Boy ( Bundy QLD) - Thursday, Jul 15, 2010 at 13:34

Thursday, Jul 15, 2010 at 13:34
Put a socket of the correct size on the end of it.
Or
Put the vehicle in 3rd gear (flat ground and handbrake off) and pull it forward until the motor rotates to where you want it to be.

Cheers
Dave
Cheers,
Dave
2010 Isuzu FTS800 Expedition camper
2015 Fortuner
Had 72 cruisers in my time

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AnswerID: 424115

Reply By: Mikee5 (Logan QLD) - Thursday, Jul 15, 2010 at 13:40

Thursday, Jul 15, 2010 at 13:40
I would either use a socket on the crankshaft nut and turn that, or put the vehicle in say 3rd and rock or push it forward. The second method is the one I used to turn over my motor when doing the valves (1HZ). I had to keep putting it into neutral and rolling it back again cos I kept running out of garage LOL.
AnswerID: 424116

Reply By: Member - Pat (VIC) - Thursday, Jul 15, 2010 at 13:40

Thursday, Jul 15, 2010 at 13:40
hi just put the bolt back in the crankshaft and with a socket and brackerbar just turn the motor gently clockwise never backwards until all the marks line up as close as possible.
Don’t forget to take it out of gear first and hand brake on.
AnswerID: 424117

Reply By: Malleerv - Thursday, Jul 15, 2010 at 13:42

Thursday, Jul 15, 2010 at 13:42
24mm socket in the front of the alternator pulley and turn with ratchet while pushing down on fan belts.

You can also turn the engine from the fuel pump timing belt pulley but you must turn it clockwise or you will loosen the nut. 19mm I think it is. Its a bit harder to turn here but it will work ok.

Cheers Matt
AnswerID: 424118

Reply By: get outmore - Thursday, Jul 15, 2010 at 14:17

Thursday, Jul 15, 2010 at 14:17
argggg bbe very carefull, !!!

many a 1hz head has been destroyed like that changing timing belt
AnswerID: 424121

Reply By: fisho64 - Thursday, Jul 15, 2010 at 15:08

Thursday, Jul 15, 2010 at 15:08
make absolutely certain you get it in the position with marks lined up BEFORE removing old belt. Rotating cam or crank with belt off WILL cause contact between valves and pistons.
AnswerID: 424123

Follow Up By: aussiedingo. (River Rina) - Thursday, Jul 15, 2010 at 17:11

Thursday, Jul 15, 2010 at 17:11
THIS IS A MUST DO!!!!!!!!
"the only thing constant in my life is change"




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FollowupID: 694547

Reply By: Member - Trouper (NSW) - Sunday, Jul 18, 2010 at 17:24

Sunday, Jul 18, 2010 at 17:24
Seeing as how "80 cruiser" couldn't be bothered thanking the 7 people who just replied.............I like to thank them on his behalf!!! All be it a bit late.

regards.........................jeff
AnswerID: 424408

Follow Up By: Member - Phil G (SA) - Sunday, Jul 18, 2010 at 17:43

Sunday, Jul 18, 2010 at 17:43
Hehehe I agree with you Jeff. I get frustrated when you spend a bit of effort on typing a reply .... but I guess 80seriescruiser might be up to his elbows in grease and swearing and cursing.

The hard bit about this repair is working out how to remove the upper backing plate to get to the water pump bolts - you have to remove the camshaft pulley. This means you have to remove the rocker cover and get a 26mm open ended spanner to stop the camshaft from turning. Plenty of swearing to be had by the average DIY!!!!
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FollowupID: 694846

Reply By: Member - Phil G (SA) - Sunday, Jul 18, 2010 at 17:37

Sunday, Jul 18, 2010 at 17:37
Just to add to the good information, 32mm socket is the size you need for the crankshaft nut.

Cheers
phil
AnswerID: 424409

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