Rod knock....already? are you serious?

[csnow]

Glad to hear, that is great news. Now buy a set of quality cam gears and stay off that China crap. Titan gears are rebadged Fidanza gears. I have never heard of any problems with the Fidanza gears.

 

[jdub]

its NOT rod knock!!!! wooooooooooot

however now ther is a new problem.

Intake cam gear. Aftermarket OBX. Bolt must have loosened over the couple months, not much at all though as it was still on quite tight. However it slowly ate away a bit of the gear, (cam appears ok). The gear i notice as it rotates shifts very slightly up and down while the exhaust one only moving radially.

The first i noticed the gear was loose i touch it. I was able to move backwards and forwards by pushing the top of the gear towards the firewall.

Question is....now what? anyway to fix this or do i just need a new gear?

Might want to check behind those cam gears to be sure nothing (like the outside bolts) is hitting the back plate or one of the bolts securing the back plate to the head is hitting the gears (had this happen with my AEM's...tap, tap, tap)

^ Ditto

Had to shorten the bolts by 3mm.
(mine wouldn't turn at all though scared the crap out of me I thought the Valves were hitting the pistons when I changed to a 2mm MHG)

Start by making sure the gears are ok...i.e. the pin holes are not elongated. If they are the gear(s) are trashed and you need to get quality ones. If they are ok, make sure the washer is in place and the bolt is torqued to spec...use blue loctite on the threads.

Whew...RK would have been a very bad thing.

 

[IJ.]

Just buy some AEM's
(glad it's NOT RK though)

 

[IwantMKIII]

Start by making sure the gears are ok...i.e. the pin holes are not elongated. If they are the gear(s) are trashed and you need to get quality ones. If they are ok, make sure the washer is in place and the bolt is torqued to spec...use blue loctite on the threads.

Whew...RK would have been a very bad thing.

Just buy some AEM's
(glad it's NOT RK though)

Yeah, to both of you BIIIIIIIIG thanks for the helpful hints of what ELSE it could be :icon_bigg. I NEVER would've guessed it. I didn't know the cam gear was loose until today bcause i was waiting on a torque wrench and some key socket sizes to eliminate all the other possiblities.

Jdub, by pin holes not being 'elongated', do you mean widened? Consider X-axis to be as if you put a ruler along the top of the two cam gears, y going to the sky and Zaxis going to the firewall to help clear things up

Edit: i took notice there is a very slight space between the washer and gear even when torqued. My suspicion is one of the two are very slightly bent

 

[jdub]

The round hole for the cam pins, top of the bolt...meaning no longer round

I'm thinking the same thing as IJ...AEM or Fidanza gears.
And, if the gear is bent, it's a no brainer.

 

[IwantMKIII]

The round hole for the cam pins, top of the bolt...meaning no longer round

I'm thinking the same thing as IJ...AEM or Fidanza gears.
And, if the gear is bent, it's a no brainer.

The pin to fit the gear on in the proper direct i assum you mean. The pin looks to be in very good shape, however, on the gear itself, the hole widened some. Maybe .25-.5mm? gonna have to look more closely tomorrow...its snowing like i live in antartica right now.

 

[jdub]

Yes...the hole on the gear. If it's no longer a tight fit on the pin, the gear is FUBAR.

 

[IwantMKIII]

Yes...the hole on the gear. If it's no longer a tight fit on the pin, the gear is FUBAR.

so even if i overtorque the bolt some it won't create enough friction to prevent gear from knocking on the pin every rotation?

 

[IJ.]

Just replace em ......

 

[jdub]

Think about that for a second and what the cam gears do

I know you're a college student without a lot of available $$$...are you really using the adj cam gears for what they are meant to do?
Think a set of stock cam gears might be a better option?

 

[suprarcr89]

glad to hear it wasnt a rod knock....

and when you did the boost leak test did you undo your pcv on the throttle body and put a cap there if not that would be why air got into your crankcase.....

 

[IwantMKIII]

Think about that for a second and what the cam gears do

I know you're a college student without a lot of available $$$...are you really using the adj cam gears for what they are meant to do?
Think a set of stock cam gears might be a better option?

yeeeah yeeeah i know lol

 

[IwantMKIII]

glad to hear it wasnt a rod knock....

and when you did the boost leak test did you undo your pcv on the throttle body and put a cap there if not that would be why air got into your crankcase.....

yep...didn't think that through at all when i did it :3d_frown: i paid for it later and found out the consequences the hard way. lesson learned.

 

[Poodles]

<== stock cam gears until I go for big power

the HP/$ ratio is just not worth it IMHO...

 

[QWIKSTRIKE]

And did you have the rods re-sized?
Clearances on the rods?
Did it EVER run low on oil after the build?

You may not know it, but one of these problems manifested itelf.

 

[IwantMKIII]

You may not know it, but one of these problems manifested itelf.

ya lost me

 

[Clueless]

ya lost me

not resizing rod = bad clearance = lost oil flow?

 

[jdub]

Guys - Read the thread...his cam gear was loose