So plan B, I'm going home tomorrow and I'm gunna do it without dads help eeep , so I won't rely on the transport. But first I wanted to know what clearance is right, it seems the clearance should be. And there were no wear marks JEZ, few black marks on them but looked more like just being old, was very smooth to touch.
The reason for disconnecting the spark is to see if the noise is in the rotating assembly ie piston or rod. The real question is Just shimming it back to correct clearance won't fix the cause, just the symptom.
The likelihood of the camshaft being the cause is quite low. I'd be wondering what could happen to the valve stem or the seat. Closing tolerances are usually easy. They're caused by valve seat recession most of the time. But opening tolerances are another beast. You need to be a member in order to leave a comment. Sign up for a new account in our community. It's easy! Already have an account? Sign in here. Welcome to SAU Community Welcome to SAU Community, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information for you to signup.
Start new topics and reply to others Subscribe to topics and forums to get email updates Get your own profile page, build reputation and make new friends Send personal messages to other members. See fewer ads! Consider joining our newsletter for the latest content updates Click here to register Guest Message by DevFuse. Share More sharing options Followers 2. Prev 1 2 3 Next Page 1 of 3. Recommended Posts. Ruxis Posted April 9, Posted April 9, Hey guys, I have a severe ticking noise from a lifter on the intake side.
Link to comment Share on other sites More sharing options Replies 41 Created 9 yr Last Reply 8 yr. Top Posters In This Topic 7 7 17 5. Aggroman Posted April 9, Oh Jarrad, you come to me for everything else why not this.. JonnoHR31 Posted April 9, Its very enjoyable on the dyno to move the cams around and see an earlier fatter dyno curve,,,, normally with some top end reduction,,,,,but this will move the car forward QUICKER.
Basically what is happening with cam positioning is the alteration of the engines dynamic compression. For example moving the cams ''in'' or increasing overlap will generally move the power higher and for a longer period of time, reducing the dynamic compression and ''opening up'' the engines breathing. All turbocharges and camshafts will respond slightly different but this is the general rule of thumb. Think of the engine as a forced air pump and moving cams is the tap controlling its pumping!!!!!.
Darren Lewis. Our collars have precision ground internal bores which make it easy to gain the required. Must be ground with a finish similar to a crank journal. Most crankshaft grinder operators are familiar with the precise measuring to gain the. The collar should never be fitted relying on the grub screws to hold it, with the correct. The grub screws are only to assure it not turning in event of pump lockup etc. Gently warm collar to a light straw color and with a suitable mandrel knock the collar on very smartly.
NOTE, the heat soak from the collar will grab it very quickly so it must be a very fast knock on technique to assure it fitting home easily. Fit grub screws at journal end of collars at deg away from each other, to ensure screws do not hit the crank bolt when doing up bolt.
Every second phone call involves a discussion on RB pump failures. It is a dilemma that faces the unaware RB builder but can be addressed in several ways. Basically the 6 cylinder inline engine is not a balance friendly item to deal with at high rpm. The crankshaft harmonics through the inline 6 crank are inevitable and increase in magnitude as crankshaft stroke increases. This is no new engineering fact but has to be dealt with and manicured as per each individual combination and customers budget.
The Nissan RB engine will go 'past' or 'through' its harmonic periods very quickly and this will interprate the success or the destruction of most combinations. Some turbocharger combinations will find a huge ammount of rpm per time and these are the 'oil pump killers'. The cranks especially the long stroke RB30 will not be happy in these situations.
When using an RB30 a constant check of the balancer bolt tension is necessary. The first sign of crank harmonics and too much rpm for a combination, is the loosening of the harmonic balancer bolt in operation. The bolt must be done up to nm. This cannot be achieved unless the flywheel or crank is held with appropriate tools. The nissan gear tooth design is very weak and breakage will innherintly happen from tooth root to outer diameter in its thinnest area.
The 2 flat internal gear drive flanks are also a weak driving design. Great for a stock engine as nissan designed it for but builders will find the flaws once modifying. Fixes for these issues are obviously in a race type application a conventional dry sump system. Some budgets and combos that do not allow will require an external wet sump style setup. Alternatively we can supply our moly - billett gears which are successful in all 25 and 26 setups and the RB30 limited to rpm.
This can be very stressful to unaware or ''take the chance'' RB builders but it is inherrant in modifying and developing most engine types. Finding the weak links and modifying them is part of developing any engine model. Remove rear oil welch plug. Fit alloy billett drain into hole with the 10 fitting facing towards inlet side and two 6mm holes at 9 oclock through 3 oclock.
Thinking about an engine swap? At this stage, the best you could aim for would be hp. However, some of the supporting mods that you may require include; sports exhaust manifold, fast road camshaft, intake headers, boost controller, front mount intercooler, panel air filters, piggyback ECU, and Z32 massive air flow sensor.
If you want to achieve at least hp, you will need to modify your engine with high-flow fuel injectors, ported and polished head, a high-performance exhaust system, and an induction kit. On top of that, you need to think about upgrading your turbo, fuel pump, oil cooler, and oil pump.
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