Valve springs and retainers can be a bit 'fun' with heads still on, but i do have a tool to make this easier for you if anyone wants to borrow.
You will want a leakdown tester or other means of pressuring the cylinder with compressed air, and then the walloper (for want of a better word) to compress the springs and remove the collets in one easy ish pop.
Cheers,
Ben.
yip i did my best to find a easy way of doing the valve springs, the guide I linked In my origional post makes use of a relativly cheap tool plus the use of a air compressor, and in the thread it also says if you cannot get hold of an air compressor you can put the cylinder you are working on at halfway down. lower a length of rope through the spark plug hole and then rotate the crank toward TDC so the rope compresses against the valves, this way the valves will stay closed when using the spring compressor and they will not contact the piston (avoiding any metal to metal contact)
bump for the 5th person comitted are there any other intrested persons
Might be worth asking him how long it'll take him, if cams are a scarcity we do have a spare set each in our engines - so if he's doing it over a few days (weekend inbetween maybe) and interest is enough we could potentially install the freshly ground set and give him the stocks to do?
If it increases interest
I have a spare set of cams if anyone wants to buy them
i will be going to talk it over with him this coming thursday so will ask about the turnaround time
and thankyou Alistair another set of cams in NZ for sale, What are you after for them?
No idea what they worth really so make an offer really
Bump for any extra intrest before I go in tomorrow to try renegotiate prices
Any luck on the negotiation?
When I talked to him last night he'd gotten about $100 off the cam grind, and was looking to see if he could negotiate a lower cost for the springs additionally. But you'd have to get him (Adam) to confirm this.
he said he "should" be able to knock around $100 off per set of reground cams ie bringing it from $630 to $530.
he also talked about possibly doing 10% off the valve springs bringing them down to the ~310 mark
Today i dropped off all 3 of the christchurch sets of cams I had he is already at work desgining the profile and testing it in one of my spare heads.
@ kenneth and Trent as soon as your cams arrive here in chch (providing peter has all the profile designs finished) he said it should be a 3 day turn around to get all 5 sets ground.
So for anyone else intrested you better be quick!
Also PM me if you cannot afford to join this buy now and I may be able to sort you out a layby kind of thing deposit and i will grind some cams for you and you pay the full ammount + purchace springs at a later date
will you be doing another buy later down the track?
id like to see results before committing to buying
will be checking up on progress and posting as much before and after
I will be road tuning my car but for either trent or kenneth if you do manage to get before and after dyno plots that would be great
@GLY
If there is significant intrest in doing another one later in the year ie 3 persons or more i will run another buy if not I am more then happy to put my face to your cams if you decide to do a set independantly (so peter kennard knows its repeat business to try get better pricing)
Update today peter has reduced the lift from 10.5 to 9.8mm to make the cam more stable for the stock lifters and rockers still a huge increase on stock and the duration will remain at 264
What is the standard lift and duration, can't find that in the other threads.
And I'm guessing this lift still needs new valve springs?
Last edited by lathiat; 12-01-2012 at 09:14 AM.