eke_zetec_RWD Posted January 4, 2012 Share Posted January 4, 2012 yo, so my cam is chewed out again! this one lasted a long time though. but im over it. i know i have talked about this in the past but has anyone on here done a conversion that didnt use special long valves and pedistalls? Quote Link to comment Share on other sites More sharing options...
BobbyBreeze Posted January 4, 2012 Share Posted January 4, 2012 What cam was it? And was it reground on a stock core with the basecircle reduced? Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted January 4, 2012 Author Share Posted January 4, 2012 it was made from a brand new blank, "turbo grind". geometry is perfect. ohh forgot to say its a 2000cc pinto turbo. viewtopic.php?f=17&t=12383&start=20 the cam will have a reduced base circle though because in the past its been reground to clean it up. u work for kelford yes? when i set it up i ended up having to use lash caps to get the rocker on the right angle and correct wear pad contact. the contact on the pad stops about 3mm from each end of the pad. ( long hard chrome pads on rocker ) the cam was run in on the outer springs only. new spray bar also fitted. (this about 3 years ago) Quote Link to comment Share on other sites More sharing options...
QCADTA Posted January 4, 2012 Share Posted January 4, 2012 have a look here http://www.esslingeracing.com/ some very nice shit on here that you might be after Quote Link to comment Share on other sites More sharing options...
BobbyBreeze Posted January 4, 2012 Share Posted January 4, 2012 Can you put up some pictures of the damaged lobes? What do the rocker arm slipper pads look like? Without seeing the damage I would suggest you try another cam grind. Although the geometry may be perfect, on a slipper pad OHC valvetrain it is common to have oil entrainment issues where the pad/lobe is effectively run dry of oil for a portion of the sweep. Its a huge problem for aftermarket grinds on sr20's and pinto's and is commonly overlooked when cams are designed the old-fashioned way. Edit/ Setup and run-in sounds spot on. Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted January 4, 2012 Author Share Posted January 4, 2012 i had a esslinger roller rocker in my hand yesterday to compair it with a normal rocker and the shape is very different, they would require longer valves and pedistalls. and obvisously a new cam profile to suit the roller rocker. i cant seem to find other companys making roller kits yip will put up pics in next post Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted January 4, 2012 Author Share Posted January 4, 2012 Quote Link to comment Share on other sites More sharing options...
KKtrips Posted January 4, 2012 Share Posted January 4, 2012 That looks bad - the spring seat pressures arn't too high are they? Getting coil bind when springs are hot? Enough lubrication getting up there? Haven't though about adapting a set of roller rockers off a SBC or something? Quote Link to comment Share on other sites More sharing options...
QCADTA Posted January 4, 2012 Share Posted January 4, 2012 the old mans ff2000 pinto motor was doin something similar, it was even spittin the rocker arm off! and as stated it was to do with seat pressures and high revs. kelfords rebuilt the head this time and now its mint. also running an oil with zddp in it helped, especially in old engines, i use it in the ca18det and shit it runs so much smoother than a full synthetic. Quote Link to comment Share on other sites More sharing options...
fuel Posted January 5, 2012 Share Posted January 5, 2012 yeah one thing to look at is the oil used - most oils these days don't have nearly as much zinc as the older oils did, which is necessary for the older engines. Quote Link to comment Share on other sites More sharing options...
Gaz Posted January 5, 2012 Share Posted January 5, 2012 Simon (Nismo ..?) on here had a set for sale about 4 years back. See if he ever sold em. One of mine did same thing and spat rocker arm off like said above. Went to billet cam after and lash caps with no issues so far. Gaz Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted January 5, 2012 Author Share Posted January 5, 2012 Simon (Nismo ..?) on here had a set for sale about 4 years back. See if he ever sold em.One of mine did same thing and spat rocker arm off like said above. Went to billet cam after and lash caps with no issues so far. Gaz i remember that, i cant remember if i got his set or another set from someone at the same time and they were fucked. might of been someone else though. hopfully voldo will sell me a new cam and followers. i might make it duel spray bar, cant hurt. Quote Link to comment Share on other sites More sharing options...
BobbyBreeze Posted January 5, 2012 Share Posted January 5, 2012 Do you want to PM me your current cam's spec's and I'll see if we can sort something out for you. And yep try run an oil with lots of ZDDP. Quote Link to comment Share on other sites More sharing options...
d.p.n.s Posted January 6, 2012 Share Posted January 6, 2012 Simon (Nismo ..?) on here had a set for sale about 4 years back. See if he ever sold em.One of mine did same thing and spat rocker arm off like said above. Went to billet cam after and lash caps with no issues so far. Gaz i remember that, i cant remember if i got his set or another set from someone at the same time and they were fucked. might of been someone else though. hopfully voldo will sell me a new cam and followers. i might make it duel spray bar, cant hurt. ivr just flicked nismo capri a text he may have some roller rockers you can check out. Quote Link to comment Share on other sites More sharing options...
Testament Posted January 7, 2012 Share Posted January 7, 2012 Do you want to PM me your current cam's spec's and I'll see if we can sort something out for you. And yep try run an oil with lots of ZDDP. At a pinch - run 20% Moreys HD oil stabiliser Quote Link to comment Share on other sites More sharing options...
nismo.capri Posted January 7, 2012 Share Posted January 7, 2012 the old mans ff2000 pinto motor was doin something similar, it was even spittin the rocker arm off! and as stated it was to do with seat pressures and high revs. kelfords rebuilt the head this time and now its mint. also running an oil with zddp in it helped, especially in old engines, i use it in the ca18det and shit it runs so much smoother than a full synthetic. Oil can be an issue for sure. I use penrite HPR30 because it has the right amount of Zinc and phosphorous additives for a flat tappet cam according to http://roverp5.proboards.com/index.cgi?board=general31&action=print&thread=2579 many modern oils have way less IIRC it's because they lessen the life of catalytic converters. http://www.penriteoil.com.au/products/engine-oils/hpr/hpr_30_premium_mineral Pinto's are notorious for chewing cams in the early days it was because of a mismatch with the hardness between the cam and rocker but that shouldn't be an issue now. Quote Link to comment Share on other sites More sharing options...
nismo.capri Posted January 7, 2012 Share Posted January 7, 2012 Simon (Nismo ..?) on here had a set for sale about 4 years back. See if he ever sold em.One of mine did same thing and spat rocker arm off like said above. Went to billet cam after and lash caps with no issues so far. Gaz i remember that, i cant remember if i got his set or another set from someone at the same time and they were fucked. might of been someone else though. hopfully voldo will sell me a new cam and followers. i might make it duel spray bar, cant hurt. nah not me I still have them, I got them from playhard racing on traders but he didn't say one had been repaired They look very usable still $200 if anyone wants them, cost me $210 + postage I've also got these, same as what Esslinger use. I was going to list them on traders as PK from Kennelly Cams did me a custom grind for my filled port head, having a higher port velocity means you can close the inlet later getting more ram effect ...I think $300 if you want them Cheers Simon Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted January 8, 2012 Author Share Posted January 8, 2012 i bags the bottom roller rockers haha, yea i think it was the oil that did it, as i did a oil change not to long ago and it hasnt been a issue untill now. Quote Link to comment Share on other sites More sharing options...
nismo.capri Posted January 8, 2012 Share Posted January 8, 2012 i bags the bottom roller rockers haha, yea i think it was the oil that did it, as i did a oil change not to long ago and it hasnt been a issue untill now. Sweet as, i forgot to say they are new btw. Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted January 11, 2012 Author Share Posted January 11, 2012 put the rockers in to see how they fit, needs about 8mm thick lash cap on the valve to make it work. and although the ball studs are long enough i feel longer ones would be better as that would leave more thread in the head. has anyone ever bought lash caps this thick before? looks like i will have to make them myself..... Quote Link to comment Share on other sites More sharing options...
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