All Activity

Is there any engineering benefit to the use of TTY bolts?

And more bad news Might be time to find another box

ah, I think I probably do... I just saw "sohc 4g63" and figured it was the old model but of course they probably kept building them forever. Oh well now i have a set of new TTY bolts on the way, I suppose I'll use them - the engine was rebuilt not that long ago, can't be sure that the head bolts that went in at that time weren't TTY too

Mine says head 95nm Rods 52nm As @fuel said, you may have a late model manual

depends on the age I guess - the older 6 bolt 4G63s had reusable hardware but the modern stuff (ie Evo 4 style onwards) tends to be TTY

stuff it, a whole replacement set is like 80 bucks lol. cheap insurance edit: $40 bucks through Segedins

hmm I've found a manual too and it doesn't say replace, but the torque figure is 20NM plus 180 degrees, isn't that a hallmark of torque to yield bolts?

There are some B&S Facebook pages witch are good

Quick look through my workshop manual doesn't say to replace them

quick question, are the rod and head bolts on the old 4G63 reusable or one and done? @fuel @bigfoot

Also Registered

Stoked to have met the Retropower team this week - the cars are unreal in the flesh.

Well this ran with a misfire upon entering boost since i got it, now its really started being undriveable, i checked tps, coils, all the things that could cause that miss and came up with nothing definitive, it always smoked a bit but i thought this was as a result of being rotary and then i noticed the oil looked cloudy on the dipstick, changed it for fresh oil and filter.. The oil looked like this after 10min run time and smells kinda like coolant, time to rebuild, im guessing a water seal let go or something... I should be sad about this or something but im actually looking forward how a rotary engine looks inside, especially a 'worked' one.

https://xkcd.com/2916/

I'll keep that in mind, thanks mate.

Registered...

Mate those are all good - my brother has a Farr 1020 and has a genuine late 80's autohelm that just will not die. Obviously you don't use it when there is lots of load on the helm but we have done several non stop runs from AKL to the BOI on the autohelm in up to 20 knots of breeze and no drama so far. I remember seeing your yacht around AKL in some regattas and races, nice boat.

The shroud arrived, it'll need some trimming to suit but was cheap enough I pulled the manifold off and sat the turbo in place with the v band adaptor bolted on so I can start figuring out the manifold. I'd be a lot easier to fit the tubo without the air con compressor The downpipe is going to be fun and a lot of bends too, it'll probably will do a U-turn then sneak behind the manifold and down. @Raizer trimmed the Drain fitting and that now fits nicely (I'll need to clock the core to sort out the angles ) The sinco merge collector is quite nice, I might need to shorten it a little as its quite long and space is limited I've ordered some more steampipe short radius bends as I don't have enough. The Nissan genuine studs for the turbo are 40mm M8x1.25 and are $12 each, The Honda studs are 38mm M8x1.25 and are $2.50 each so I'll order a bunch of honda studs and hope the 2mm won't make that much difference

Snitches get stitches..........

Same same

Was excited for wof achieved update, bummer for the plug thread

Were not the cops. Or narks

The bits I need for that Wof have arrived, the wheel bearing might be a mission, but we will see. In the meantime I have been hoovering/relearning what I need to know about DCNF carbs and have had some useful and enlightening conversations, some of which can be found in my DCNF thread.. I also decided to replace the expensive oil in the tranny with fresh expensive oil. Mostly cos I drained it all out to put a bit of sealant on the drain plug as it was dripping a tad. When it came out it was kindof murky which I guess is the new oil washing out and interacting with the old. So I did that and it resulted in a pretty significant drip from the drain plug regardless of my sealing efforts. I did a wee bit of investigation, which has had this slightly annoying result; I have a spare box which I stripped enough to get that housing off, pretty much for practice but to see if I could just use that. But unfortunately they are different. This might mean enlisting @yoeddynz in some dirty welding duties if I cant find someone slightly closer. If it welds ok I will tap it out with a parallel thread rather than taper and machine a flat face so it can use a washer for sealing.

Could we do a date that isn’t the 16th please? Seems like the third Thursday always clashes with a thing I have to go to. But keen for Fisherman’s Table. Haven’t been there since maybe 1994 or something like that.

Thats probably a regurgitated rule from a really old oldschool event form. Personally, i dont give a shit.