24 replies to this topic

[leewaa]

So I need the camshaft timing gear to sit up higher but afaik only the crankshaft timing gear is shimable. See the pic below, its not much but I think its not ok like this.. any ideas?
 1D3461F3-2667-44A9-A541-6D99FEF48789.jpeg   28.99K   6 downloads

Edited by leewaa, 29 March 2018 - 08:01 PM.

[leewaa]

Sorry the uploader rotated the image... bit limited since im on my phone.

[alex-95]

I know it's probably obvious but have you double checked there is no shims on the crank? I was fitting mine and couldn't see the shims on the crank. 

 

whats the end float on the cam? have you put a new triangle plate for holding the cam in? and whats the thickness of it, It may be a little thin.

 

you'd have to skim the difference off on a mill or lathe.

[Spider]

When checking, 'thrust' the Cam in to the Thrust Plate, ie, push the Cam towards the front of the engine.

 

If it's ground correctly, when running, it will naturally thrust this way and won't 'sit' any other way.

[leewaa]

Its a fresh build so no existing shims on the crank, so new cam, new triangle plate. Unfortunately I dont have access to a mil or lathe.

Got my hopes up there, but unfortunately the camshaft is still sitting as far forwad as possible and there’s still a small difference.

I am using the timing cover from retrosport so this could be the cause.

[nicklouse]

Its a fresh build so no existing shims on the crank, so new cam, new triangle plate. Unfortunately I dont have access to a mil or lathe.

Got my hopes up there, but unfortunately the camshaft is still sitting as far forwad as possible and there’s still a small difference.

I am using the timing cover from retrosport so this could be the cause.

are you using the gasket they supplied?

[nicklouse]

have a read http://www.theminifo...ley-shim/page-3

[leewaa]

I new it would come done to this

Its a fresh build so no existing shims on the crank, so new cam, new triangle plate. Unfortunately I dont have access to a mil or lathe.
Got my hopes up there, but unfortunately the camshaft is still sitting as far forwad as possible and there’s still a small difference.
I am using the timing cover from retrosport so this could be the cause.

are you using the gasket they supplied?

Bingo!

I knew it would come down to the gasket

I had the origanally used the one they supplied but wasn’t happy with my work (first time doing this) so I redid it with less sealant. The gasket is thicker now which explains it, I was actually thinking that the thicker gasket is better but didnt realize the issue untill now.

[Steve220]

Yep, i made the mistake of trying to be clever and use the Rover gasket. DSN provide a thicker gasket.

[leewaa]

Oh wait a minute

The gasket currently fitted seems thicker than the DSN one from what I can remember. While I was in the garage I thought that the thicker gasket is the issue but actually I need the gasket to be thicker. Either that or a thicker locating plate maybe. Though I will check it all again in the morning to suss some things out.

[nicklouse]

yes the gasket thickness effects the cam cog position. remember to torque the nut down on the cog to make sure it is all seated correctly (well it just needs to be tight so everything is where it needs to be).

 

to be honest i am slightly disappointed that DSN have decided that you need to use a non standard gasket when they could have easily made the cam thrust plate mounting at the correct distance....

[Sprocket]

yes the gasket thickness effects the cam cog position. remember to torque the nut down on the cog to make sure it is all seated correctly (well it just needs to be tight so everything is where it needs to be).
 
to be honest i am slightly disappointed that DSN have decided that you need to use a non standard gasket when they could have easily made the cam thrust plate mounting at the correct distance....

It may have been an oversight when they designed the covers as it would seem that many don't realise how important the gasket thickness is when it comes to timing gear alignments. The easiest fix is to have some thicker gaskets cut, but it does mean that you have to buy your gaskets from them.

I suppose you could use the standard gasket and use shim washers under the thrust plate instead.

[leewaa]

yes the gasket thickness effects the cam cog position. remember to torque the nut down on the cog to make sure it is all seated correctly (well it just needs to be tight so everything is where it needs to be).

 

to be honest i am slightly disappointed that DSN have decided that you need to use a non standard gasket when they could have easily made the cam thrust plate mounting at the correct distance....

 

Yeah makes sense now that I am able to think about it in piece and quiet was a long and frustrating day in the garage today. 

The cam thrust plate I have is from Minispares. The gasket from DSN is currently out of stock too...

[leewaa]

 

yes the gasket thickness effects the cam cog position. remember to torque the nut down on the cog to make sure it is all seated correctly (well it just needs to be tight so everything is where it needs to be).
 
to be honest i am slightly disappointed that DSN have decided that you need to use a non standard gasket when they could have easily made the cam thrust plate mounting at the correct distance....

It may have been an oversight when they designed the covers as it would seem that many don't realise how important the gasket thickness is when it comes to timing gear alignments. The easiest fix is to have some thicker gaskets cut, but it does mean that you have to buy your gaskets from them.

I suppose you could use the standard gasket and use shim washers under the thrust plate instead.

 

 

 

Actually I was thinking about some shim washers under the locating plate too however I am not sure if this is ok ?

Its off by approx. 5 thou...

[Sprocket]

What is your reasoning for it not to be OK? The triangular plate is steel backed, and retained with three bolts. As long as you use the same thickness washers, it wont make one bit of difference to the function of the plate its self.

You can buy shim washers as small as 5mm ID in 0.1mm increments