Jump to content
SAU Community

Crank Timing Belt Plate Question..

Paulusc44

By Paulusc44,
in Engines & Forced Induction

 Share

Recommended Posts

Paulusc44 Enthusiast

Paulusc44

Posted
Posted

Heya guys,

Ive just completed HG, slipping my timing belt on.. Last time I did a timing belt on an RB I could hear a very faint noise coming from the harmonic balancer area, on closer inspection I can see that the very final timing belt plate actually gets pushed from back and loose the key-way at its most rear-ward position (where it wants to sit with timing belt on) this means it is free to rotate? Although it has a key-way hole cut into it? Why? it doesent naturally want to sit in the key-way?

My only guess is perhaps I needed to put a little more torque on the crank bolt?

Help haha

Cheers again

Link to comment
https://www.sau.com.au/forums/topic/460948-crank-timing-belt-plate-question/
Share on other sites
Shoota_77 Veteran

Shoota_77

Posted
Posted

The "woodruff key" hasn't sheared off has it? Wouldn't be the first time. There are two, one for the cam pulley one for the balancer. Obviously the engine still runs so it's not entirely sheared off. But then again the belt gear can weld itself to the shaft sometimes so will still turn the belt/cam without the key.

Definitely make sure the balancer is correctly torqued up. Number one way to destroy your oil pump if it's not.

jiffo Mentor

jiffo

Posted
Posted

The slot in the rear belt guide plate is there so you can easily fit the plate without having to remove the woodruff keys.

Once in position it's way behind any key.

But it's not going to slip/rotate or whatever on the crank.

The balancer bolt pulls up the whole show against a shoulder on the crank.

That's balancer, front belt guide, crank gear, rear belt guide, oil pump gear……..all hard up against the crank shoulder.

  • Like 1
Paulusc44 Enthusiast

Paulusc44

Posted
  • Author
Posted

The slot in the rear belt guide plate is there so you can easily fit the plate without having to remove the woodruff keys.

Once in position it's way behind any key.

But it's not going to slip/rotate or whatever on the crank.

The balancer bolt pulls up the whole show against a shoulder on the crank.

That's balancer, front belt guide, crank gear, rear belt guide, oil pump gear……..all hard up against the crank shoulder.

Cheers for the excellent description mate, thats what I suspected.. Just needed a bit more torque on the crank bolt.. :)

Ben C34 Grand Master

Ben C34

Posted
Posted

If that plate is rattling cos you didn't do the bolt up tight enough hand in your spanners and sit in the corner untill you figure shit out.

No. Spanners. For. You.

You don't deserve them.

They deserve better.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Milkmun
      NC MX5

      By Milkmun · Posted

      Definitely needs a hard top
    • Murray_Calavera
      Wiring high beams in IC7 for R32 GTR

      By Murray_Calavera · Posted

      Nah, shouldn't have made any difference. Reds on, or car running, should be same same for what you were doing. 
    • niZmO_Man
      R32 GTS (RB20DE) clogged cat

      By niZmO_Man · Posted

      Should be able to source 200 cell R32 cat... unsure how easy it would be to get it to Malta though.
    • PLYNX
      R32 GTS (RB20DE) clogged cat

      By PLYNX · Posted

      Oh bugger ! Your right ! Good old hydrogen sulfide. Takes me back to the good old school days ! 
    • The Bogan
      NC MX5

      By The Bogan · Posted

      I've owned a few scooters over the years, a Vespa PX oil burner was my first scooter, followed by a few others, including a little 50cc BeeWee that I used as a barracks bike, and I've had a blast on all of them, they really are the cheapest for of city/suburb transport around The only issue with scooters in Australia is lots of people look down on them due to their size,  maybe they need a big bike to make up for something else where they are lacking, unlike Europe and Asia where every man an their dog owns one, and now that filtering is legal in NSW, local traffic is never a issue Not to say I haven't owned my share of big cc bikes over the years, but they were for more blasting through the hills or Hwy riding where it needed to sit on Hwy speeds Safety wise, I ride like everyone is always trying to kill me, everyone is running a red, or running stop/give way signs, or generally asleep at the wheel, which most people are duringtheir commute, I also ride really safe, and give myself, and everyone else enough room in case I need to pull some hasty evasive actions, I've done a few rider training days over the years, which has come in handy on more than a few occasions  As for mods, there's nothing really, and yes your right about aftermarket exhaust, all you get is loud and obnoxious noises from them, like every 250-300 cc you hear with a aftermarket muffler, in saying this I did put a rear muffler from a 125 Aprilla on one of my old 125 scooters, it was horrendous and no amount of full face helmet and ear plugs would dampen that noise As for coming from the Harley, and what a overpriced POS that was, I no longer do big rides as my poor old busted joints ache after about 1/2 an hour of riding, long cruises are so much more enjoyable now in a car, so a big bike would be pointless   
×
×
  • Create New...