9 replies to this topic

[liam1288]

Hi guys, just put on my Titan 1.5 roller tip rockers but some seem to be wobbly on the shaft when set up to .32 and torqued down... Been for a drive and sounds a bit well... 'tappy'/rattly... Is there any way to tighten them on the shaft? Or even position them a tad closer together so there's no room to play?
Thanks

[liam1288]

Bump

[Sheikh Pip]

What have you set to .32?

[liam1288]

At first yeah because Haynes says .27 to .33 but now set them to .30... Is that right?

[bmcecosse]

Don't understand your problem - what is '.32' ?? If you have slackened the head nuts -hope you are fitting a new head gasket??? Personally - my view is these fancy rockers are a huge waste of time and money - just use the earlier pressed steel rockers - carefully adjusted so they act directly over each valve tip.

[Sheikh Pip]

If it's the valve clearences your setting they are 15 thou inch I think with the roller rockers, well that's what mine are set at and I don't have any noise from them, I hope you're not getting inches and MM's mixed up

[liam1288]

Ok mate, cheers. What's 15 thou inch in mm?
It's a minispares cover that's apparently bigger so shouldnt hit on that but I'll have a look... to be honest there isn't any noticable difference in performance with them on but maybe everything needs setting up to get the benefit of them

[liam1288]

Bump

[liirge]

0.40mm is 15thou

Right I'm struggling to understand all the facets in this thread.

Am I correct about the following:
- You have just fitted rockers (Titan 1.5's)
- You have adjusted the rockers to 0.38mm
- Now there is an audible tapping that wasn't there before
- You haven't noticed any performance increase

If these are the facts may I now interject with a few questions of my own!

Are the rockers new or second hand?
How did you adjust the tappets, rule of 9 etc?
When you took the old rockers off, did you change the head gasket?

[Se7enS1ns]

I really should have had a look at this for you yesterday whilst I was there but clean forgot! I really hope the reason you broke down isn't because the clearances were too tight and burnt a valve out I tested them with the highly accurate method of 'giving them a wiggle', and some did feel looser than others. When inserting the feeler guages did you come in from the sides? With rollers, coming in from the front just acts a jogwheel and forces the valve open.

Next time you're on this side of the border give me a shout and I'll pop over with the feelers.