JTECH James

iTrader: (13)

just got mine fired up for the first time, and it has a noise at idle, sounds top end,

seems to be at idle, and on the pick up when reving...

only ran it for a min, so may even be tappets

its fine if i hold it at 1500rpm

Karl

No they're not normally noisey. You do need to run them in at 2000 rpm for 20 minutes after which the tappets are normally quiet.

One problem you may have is if you have not ensured your valve springs can cope with the extra lift? If this is the case the tappets will remain noisey.

JTECH James

iTrader: (13)

thanks karl, its got double springs fitted,

i just hope its not something horrid

Si B

iTrader: (59)

Fingers crossed for you James.

Possibly a sticky tappet or two. Are they new?

Si

JTECH James

iTrader: (13)

no mate, were in the old engine, i left them soaking in oil

puddy

I have bd 16,s with isky springs in mine and had to have the spring seats machined to

avoid coil bind.

puddy

TurboShed

So yours were noisy before you did this?

rsnissan

iTrader: (9)

i have a 16 inlet with iskys and it no noisier than when i had BD 10's on a standard head

col cos1

iTrader: (5)

tappets id say,ive had loads of greif with them before,they do quieten down with time

cossiemanden

it´s just the tappets, and if you run iskys you might have to modify the seats, if you run the standard springs with inserts, you shouldent have a problem.
Run mine on std with inserts and bd16+ cam with no problems what so ever.
Leave it @ 2k for some time, and they should be ok again, otherwise you have to get some new in

JTECH James

iTrader: (13)

unfortunatly not

https://passionford.com/forum/showth...59#post3406759