Well.
What's been happening?
Not nothing! So a long, long time ago, I had this problem.
So I sourced a replacement rocker assembly from the other side of the country and paid some money for it.
Then I heard nothing from the guy, not even verification that he'd gotten the money, and his gumtree ad was no longer visible, for a week.
Just as I was thinking that I'd been done, and I'd have to find another assembly somewhere else, he calls me up and tells me he's been away for a week.
Should be almost there.
Two days later he calls me again, to tell me he's received a rocker assembly shaped package. He'd forgotten to cross his own address out from the other side of the box. -_-
So off it gets sent again. Eventually it shows up, and I'm kind of surprised it did, as this is not the address I told him to send it to. So I'm glad that Aus Post was capable of working out where to send it.
Anyway, I strip it down, and discover that while the gouges aren't as deep, there are 6 times as many! Every rocker has been run dry.
So this new 'good' rocker assembly is toast as well. It was not described as 'mint', but I am yet to have words with him.
A few weeks back a guy came in to work with a CROWN that I went out and appreciated, and then talked to him for a while about 4M motors.
Ended up becoming friends and chatting over the internets a few times.
A week or so after that happened, and just after I found out my parcel had ended up back where it started, he discovered that the previous owner of his CROWN had removed the mechanical fuel pump and slapped some silicone around the hole before slapping a plate over that.
Well, that failed as he was pulling on to the on ramp, and the knocking soon had him pulling over to discover that all the oil had fallen out of his engine.
He decided to go the 7MGE route, and thus his 4M was sitting around doing nothing. It had a nice Weber attached to it I was eyeing off, but when I went around to pull the rocker assembly off it last night he'd already sold it.
Anyway, the rocker assembly looked okay, despite knowing that it'd lost all it's oil, so I paid him some money for it and tonight I went down the shed and stripped my THIRD rocker assembly down, cleaned it, and this one I rebuilt!
It's not amazing, but the scoring is very minor compared to the other two. It will do. Or it will have to until I look at different motors.
So that's the assembly sorted and rebuilt!
Now I hadn't been doing nothing while I waited for this to arrive, oh no!
I did a fair bit of this sort of thing.
Port matching the intake and exhaust manifolds and the head to the gaskets.
There was a lot of meat to remove.
The intake looked like this.
I stripped it all down, and cleaned it all up. Drilled out and tapped in some new barbs for the heater lines that run under the carby to warm it up.
Made things a bit neater. Blanked off some EGR stuff. One plate on the cylinder 6 end of the manifold, and a tapped hole with a plug in it, right in the end of the intake where the EGR goes back in after the carby. Had to buy a $30 tap just to tap one of the holes. -_-
Speaking of EGR and superfluous emissions curse word.
But what to do with the holes?
Cut the plugs off, shorten them down so they don't just keep twisting around and shearing. Also take the bit off the end that turns the pipe in to a press fit like a brake line.
Feed some stainless rod down through the middle. Was the perfect diameter! Then Jono glued it together.
Six plugs, wound back in with a little thread sealant and the rounded point of the rod pressing in to the gallery to seal it.
So that's that half of it sorted. The smoke machine itself has been pulled off already, I just need to work out the brackets for the pulleys and whether or not I can get a belt to work well without having to reintroduce another pulley.
I also put the valves back in the head.
After Jono broke one of my stem seals. We found a replacement...of sorts..
If it leaks, at least we'll know why.
It's on cylinder five intake side, for future reference.
I also determined that it was just the heater tap giving me grief, as it's jammed solid inside.
I have a generic replacement that I need to modify to work, it's a straight in/out top/bottom one, and I need to pull it apart and turn the arm around so it can lever when pushed in the right direction. I also need to work out how to mount it properly as the bracket is pretty different to the old one. I'll probably just cut the old one off and incorporate it somehow.
That's about everything up to date I think.
I won't be able to do much for a while as I'm about to go to Japan for a week (might see if I can find some goodies to fit in my carry-on), and we've just moved house so pretty busy sorting that sort of thing out.
But hopefully she'll be up and running again in a fortnight.
Hope so, as I need time to test for problems before the daily runs out of rego and I push it over a weighbridge, haha.
Cheers,
Matt
