The V8 Owners Forum -

SD1 front cover should have a rubber crank seal rather than the rope seal of the earlier P6 cover. The bit that is ungraded is the length of the oil pump gears to increase the volume of oil shifted, unfortunately I can't find the dimensions at the moment !! Another good indicator is whether there is...

Don't forget the bolt with its rubber mushroom that goes into the bottom of the mount area. You need to keep the bobbins compressed or they tear in a big bounce......

it's a 3.9 block but I want to check if the crank is oe or if it's been replaced. the engine is ment to have been stroked but if there is an oe crank n there I'll know it's not and I can start legal procedings If that's your intention then do not take any thing apart yourself. You need to have it i...

Can't say I know for sure but.... Your current servo will work with the new master cylinder, if my understanding is correct the servo flows fluid freely until some pressure is developed in the system at which point the servo senses the pressure rise and adds its contribution to your effort. Since yo...

The rear crossbolt that is behind the starter motor is a caphead type and shorter, yes?

Why not do the same behind the engine mount or face back the boss and shorten the bolt. Other option is to drill a clearance hole in the mount rather than cut away large chunks.

Dave

There are some good bits of software out there on the net to do performance calcs for 1/4 mile racing. You will need accurate power and torque curves for you engine plus full details of your transmission. Then you will be able to check the software results against real life to get the values for gea...

I think I'm missing something here.......

Does the LT77 not have a reverse detent plate fitted to the selector housing?

Standard SD1 LT77 has a reverse detent plate underneath and a bias spring on top so the lever naturally sits in the 3rd/4th position.

Regards,

Dave

The gear looks like a standard crank timing chain one and the small plates are rocker pedestal shims.

Dave

Pete, Most people would not think to check the reading. The flow through an oil thermostat does not need to be all through the cooler or all through the bypass, the hoses and the cooler provide enough restriction that any oil that can will take the route through the stat. Actually the important bit ...

Checked with an infra red gun pointed at the sump). 90-100 degrees C being my target temp. And was the 'gun' correctly calibrated for looking at the sump? These tools are potentially very useful for various diagnostic tasks but you have to be aware of what can cause a false reading, I've seen someo...

I have always remembered it this way....

The notch is at the top and goes at the right hand end of the head as you look from the exhaust face, whichever side of the engine you are working on.

Dave

Dave,

Have you checked the casting numbers against the reference list ?

When the 4.6 heads came out with bigger ports everyone confidently predicted that no one would bother doing stage 1 or 2 heads for 3.5 engines. Given they come up on ebay fairly regularly they might be a good choice.

Dave

The gap between the release bearing and the sleeve needs to be that big to allow the self centring action to occur, which is actually way more important than the gap not filling with dirt as I said previously.

Dave

Perry,

You forgot that the pump spins at dizzy speed so I'd go for only 1000 rpm on the pump to get the oil pressure up. Definitely agree about having the rockers on though, it's amazing how far the oil can go....

Dave

Standard SD1 and presumably other LT77 release bearing arms have two small square steel blocks that fit onto the pins in the ends of the arm. http://www.rimmerbros.co.uk/rimmer/rover/sd1/clutch Part number is 159003A and the Rimmer Bros price is 78 pence each. The release bearing should be a loose f...