Tomei Cam Gears And Cams, T-Belt Position?!

[hybrid_eg]

Hello gents,

I wanted to get some feedback related to the pics.. so just recently completed a full R33 rebuilding.. i've included Tomei cam gears and poncams.. the only problem visually I appear to have is the fact that Timing belt is about 1mm off the cam gears closer to the radiator. Tbelt does not appear to be walking as i've taken it all apart again to check the bottom pulleys and all is in check.. belt is in-line with all the side covers and doest move around, it just that it sits a nudge past the edge.

Anyone else encounter this? Prob is i never took a pic with OEM cam gears to see how it sat and measure the gears for comparison purpose.

All feedback is appreciated!

Tks!

Edited May 7, 2012 by hybrid_eg

[GTR260]

I shouldn't really comment s i don't have aftermarket cam gears yet but that don't look right!

[rob82]

Did you put the belt retaining plate on between the gear and balancer?

[DVS JEZ]

I think the idler is missing the washer that sits behind it. Do u remember fitting this washer?

If u have a good look the idler pulley will be sitting closer to the head than the rest of the pulleys.

[34GeeTeeTee]

I thought the poncams were dialled in and were best suited to the stock position eliminating the need for cam gears? I could be wrong as i am mildly retarded but just thought thats what i had read?

[EdGTR]

Hey, you know what they say if it doesnt look right then it probably isnt and that doesnt look right.

Pull the front down again and recheck everything. if you have a service manual with a exploded view it will show all the washers and spacers go.

Once it is apart hopefully it will be obvious.

I have seen a few engines with the tomei gears and none have sat like this.

[hybrid_eg]

As i remember everything was installed correctly reusing the washers.. the belt is not walking its just sitting in that position. Does anyone have a picture with same set up installed to see the position?

Both cams and cam gears?

[SiR_RB]

I just put on the same tomei cam gears on my 26....definitely doesn't look like that, belt sits bang on in the center of the gears

[34GeeTeeTee]

As i remember everything was installed correctly reusing the washers.. the belt is not walking its just sitting in that position. Does anyone have a picture with same set up installed to see the position?

Both cams and cam gears?

Not the same setup, but this is my NEO and shows where the belt should sit if fitted correctly -

[hybrid_eg]

When the belt was installed, it was even with the cam gears.. however, the motor was run, the belt centered itself in the position where it seems to be off.. (original pictures).

The washers from the FSM are all there.. so i'm not sure what gives..

[34GeeTeeTee]

When the belt was installed, it was even with the cam gears.. however, the motor was run, the belt centered itself in the position where it seems to be off.. (original pictures).

The washers from the FSM are all there.. so i'm not sure what gives..

It indicates that something isnt lined up... The belt will generally straigten itself to the correct position as the crank gear kind of acts as a guide.... Either way, something is not right and i wouldnt be leaving it that way!

[BLITZ-26]

Looks like the belt washer isnt on it..... i would be inclined to pull it down and see caz if it wears the belt will mash bits up when it snaps

[hybrid_eg]

Tks again gents! Which washer are we referring to exactly?

[DVS JEZ]

When u take the lower timing belt cover off u will notice that the idler or tensioner or both are sitting too close to the block in relation to the rest of the pulleys.

There is a washer that normally sits between the block and the idler

[hybrid_eg]

I didnt get a chance to take it all apart but took some more pics to share.. From what I can see on the manual instructions on tensioner there is only a spring in front of it.. od idler, nothing.. So i'm not sure why everyone is advising it could be a washer when its not pictured in the manual? There is a washer in front of the bolt that wil not offset distance between pulley and block.

This is weird..

Edited July 9, 2012 by hybrid_eg

[JonnoHR31]

There isn't supposed to be a washer behind it....

My moneys on the crank timing pulley plate, as the manual calls it, missing.

[gotRICE?]

OEM:

I know a pulley is missing, but i hadnt touched the belt itself when this shot was taken. Just more fuel for the fire that something is off.

[rofocale]

I've recently installed some tomei cam gears. The timing belt should definitely not be sitting so far forward. I noticed at one stage that the spring on the tensioner can actually fall behind the tensioner pulley which then makes the tensioner pulley not sit square. This can then make the timing belt move forward. Maybe the spring on the tensioner is between the tensioner and block - try checking that maybe...If you just keep cranking it over manually, the belt should stay pretty well centered. Basically something is making the timing belt 'move' forward from its standard position. The question is what...

Good luck. I would not conitnue until I had this resolved and fixed....

[abr33]

Even if the idlers were/are offset wrong (which they are not) it would not do anything for the belts 'true' running spot. has to come from the base..

[hybrid_eg]

I'm taking it apart on Thursday to check spring, and measure everything to see what gives.. also keep in mind originally I had the belt flpped the wrong way ( didnt see the mark on the Tbelt) and really thought that could have been it, when belt was reintalled it was put in the correct position, however when motor starts it moves forward.. and stays in that position.. it doesnt walk like you would see on a stretched belt..