RAT8OY

Karl,

Thanks for the above, a very true comment for many cases,

Mine runs 18psi hot sometimes 20psi, this is a fresh built engine. What I cant understand is why when I put the standard cam and lifters back in it (taken from the engine before the rebuild) they are fine, the engine has now covered nearly 2000 miles on the standard cam. As soon as I put a newman one in it destroys itself. I can assure you the newman cams I have installed (2 now) have both failed staight away. These were both installed as per the haines manual and newmans instructions. Because of potential blame being put my way, I even installed the 2nd one at Gard auto engineering who watched over me and will happily confirm in writing that I followed the instructions to the letter!

What I dont find so funny is the swarf in my new engine and the £45 a time oil and filter changes!

To be fair to Newmans though, they are still looking into the damage on the second cam and I await a response, but they have not tried to blame me or shirk responsibility. They seem keen to resolve the issues which seems fair enough. (so far). I will keep you all posted on further developments but I will be very reluctant to use their hydro cam again, I hope theyy send me a solid lifter set up as I cannot risk yet more swarf!

marksrsorion

this will not be a dig at newmans but off the company which supplys newman with the lifters, so far i can't faults newmans, very helpful and offered a great deal in return off whats happend, after a phone call to the company which supply the lifters and they didn't want to no and told me to sort it out with david. anyway here are some photos for your enjoyment.





















thanks

RAT8OY

Well I have just got of the phone to Ken at Newmans and as I mentioned above he was very keen to help and in no way tried to say it was my fault.

As I think I mentioned further back in the thread that the cam itself had no wear at all! It was purely the lifters that failed! This clearly shows the cams (the bit made by newmans) are not at fault!

To cut a long story short, Ken and myself have come to a more than fair agreement over they way forward and I am happy with his solution.

I believe Newmans have currently suspended their range of hydraulic CVH cams!

I am now quite sure the failures are not down to Newmans themselves, perhaps other suppliers (too Newmans) not being 100% over their quality control.

marksrsorion

that is how i see it, but i still would like something done about the amount off little bits off lifter left in my engine, the way i'm thinking is it's 50/50 blame and from what newmans have said they will do i'm more then happy but i'm still not happy about the other company which supplys the lifter.

project rs

do we know who is supplying these lifters and it seems that for now then that the only way forward is the solid lifter way and learn how to adjust them

Epsilon23

Did you solve your problem? I have just the same trouble with noisy tappets (it sounds like two metallic piece crashing).
Is it possible to detect an oil pressure problem on the head measuring with a gauge fitted in the location of the oil sender/turbo feed.

©hatter Box

mmm another 4 year old post pops up

duk2

This has been a very good read 4 me as I'm building a st170 zvh turbo engine at the mo and was going 2 go 4 the newmans cam and solid lifters,

Anyway it's good 2 c people r liking the cam and altho adjusting is a pain the solid lifters r the way forward, plus the fact newmans have been so helpful

Happy days, well 4 me anyway

Rogeyboy

iTrader: (2)

I ran a kent cam for 25,000miles and never had an issue... Its still sitting in the engine i took out of my car. I oil changed it every 4k!
It worries me that i keep hearing stories about shitty cams, when i come to upgrade the cam in my new engine i don't really know what way to choose!

mk1trb

i have used both piper and kent cams with no issues, been used hard most of the time too. i think it is just the lack of oil pressure that cvh's suffer with that make them eat themselves. mates had a kent cam in his cvh for 104k and it gets nailed every day practically.

duk2

Iv ran Kent and still am running a piper and have never had a issue with them and really like my piper that's in my frst, but hav heard some really good things about the newmans and it's solid lifters, so thought I'd try it, I hav a spare piper and Kent so if it's not 4 me I can always swap it back

Marc D

mine had a power engineering cam put in in 1997, done around 20k miles so far and ever so slightly tappy nothing excessive but still has power and has a lovely kick when the turbo comes on. delivers fantastic torque straight away. very aggressive power delivery even though the cars only running 1 bar of boost and 182bhp

Canada1

Has anyone investigated hydraulic lifters with the EDM oiling hole on the lifter face?
This is commonly done in NA for hydraulic lifters using high lift/long duration camshafts.
Added oiling leads to long lifter and camshaft life.
This is done for solid and hydraulic flat tappet lifters.

DazC

iTrader: (1)

Don't think I've ever seen followers with an additional oiling hole this side of the pond before Perry.

Might be worth investigating as the CVH here has always suffered with it's valve train.

simsytall

i've used newman cam pho4 solid lifter d/valve spring since building my engine 8k ago no issues at all

Joe91

Ive also been using a newman cam ph4 with solid lifters and double valve springs for about 2k miles and had no troubles with them

sas

I think Newman stopped production of the hydraulic follower 4 year ago due to those issues.

However, their solid followers are fine and always have been.

S.

Tony Turbo

Blast from the past.....

retrowrighty

Bit of scary reading as ive just bought one

AstoN_B

iTrader: (1)

Interesting idea I hadn't thought about. Any more info/pointers?

ro33

I know it's an old post. I happened that in my kent cams,
newman not you approve?
any way to avoid burnout?
my engine was new, and perfect oil pressure

caprixpack

when i had an xr2 about 7 or 8 years ago i fitted a piper 285 cam and my new lifters had the same oil hole in. and ive just ordered a cam from newman for my 924

Hansenturbo

still good reading

Si74

iTrader: (1)

I had a spring break in a hydraulic lifter that had only done 6K miles, standard Ford stuff that was running lovely but the resulting carbon broke the top ring.
Tuner at the time fitted a Piper 285T2. Car was being run in and out their garage for 3 months while I was in hospital. It barely made the 7 miles home. Took the cam out and one of the lifters was half an inch short. Graciously gave me a new cam which I fitted myself, no mention of the half a lifters worth of crap through a newly rebuilt (again) engine?
13 years later still to experience the joys of it eating a shitty cam as it's barely turned a wheel.
I have a Burton stage 3 head with a power engineering SX428T and wondering if I'd be better swapping to this whilst the cars in bits?

ro33

Is there no way to remedy that? problems are so bad lubrication cvh head?
anyone has more information about hole in cam follower
Must we do? or already are?

ro33

+1
any more info?