Search found 698 matches

by ndevans
Sun Aug 18, 2019 10:55 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

So after a bit of mileage this weekend, it appears that the oil leak from the head is not cured. There is a definite weep from the same area of the head, just under the forward most port of the exhaust manifold. It's not exactly gushing out, it's a drop or two forming after about 20 miles of running...
by ndevans
Sat Aug 17, 2019 4:46 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Well I certainly have spotted and sorted a potential issue there, so there's a silver lining l suppose. Whether the oil weep is sorted or not I don't know, time will tell. If it is the timing cover/front plate, and it's still happening, I might just live with it until it's run in.
by ndevans
Sat Aug 17, 2019 3:09 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

A couple of hours on charge this morning whilst at parkrun seems to have sorted it, so thanks for that suggestion. There's no hint of a shriek as the revs rise now. I've had a run in it and got it nice and hot, then re-torqued the head. However, there's still a small weep of oil down the side of the...
by ndevans
Sat Aug 17, 2019 8:10 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Ok thanks gents. The belt is about 18 months old, and it's not the standard belt, it's slightly longer to take account of the taller 1275 block- I couldn't get the standard belt on. It's a Gates v6271, from memory. It's not worn, and as far as I can tell, not bottoming in the grooves. There is about...
by ndevans
Sat Aug 17, 2019 12:03 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Good point, I must have tried it about 20 times. I'll give it a run tomorrow.
by ndevans
Fri Aug 16, 2019 10:52 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

After the usual two steps forward, one step back, I finally got it running tonight. Of course when I tried starting it, it wasn't having any of it. Dead as a doornail. So I checked everything, ignition, fuel pump, leads on the correct way, rotor arm present (been there before!).....it wasn't playing...
by ndevans
Mon Aug 12, 2019 11:17 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Ok thanks, that's what I'll do.

Head surface and block surface are now clean to my satisfaction. The tappet adjusters are now in, so all is ready to go back together.

Head gasket (new one) is ready to go back on now. Do I lightly grease both sides of the gasket?

Cheers N
by ndevans
Mon Aug 12, 2019 7:14 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

I've got new rockers and a new rocker shaft, so shall I leave the rocker/valve spacings alone? The pedestals have some wear, but nothing to sweat about.
Cheers N
by ndevans
Sun Aug 11, 2019 11:41 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Won't that screw up the alignment with the push rods?
by ndevans
Sun Aug 11, 2019 6:06 pm
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

IMG_20190811_142537~2.jpg
IMG_20190811_142537~2.jpg (1.59 MiB) Viewed 192 times
Freshly painted head, with rebuilt rocker shaft assembly.
No, I know I haven't fitted the tappet adjusters yet!
by ndevans
Fri Aug 09, 2019 7:20 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Charlie Ware's has all the bits I need except the locating plug, which I will order from Minispares. I'll take a trip to Charlie's tomorrow morning after parkrun. I've decided to paint the head in the meantime. In case anyone was thinking of doing the same-ordinary paint stripper doesn't touch engin...
by ndevans
Thu Aug 08, 2019 9:38 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Yes, there's a hole where no. 2 pedestal fits. Oil way at no.1 pedestal, top and bottom of the shaft.

Cheers N
by ndevans
Thu Aug 08, 2019 7:35 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

The rocker assembly.....well.....disassembled! DSCI0424.JPG No.1 rocker is at the right. There is some wear on the shaft, and I will replace it. No.7 & 8 rockers are the most badly worn, but all are worn to some extent. I'm toying with the idea of replacing all of them. The oil ways look clear in th...
by ndevans
Wed Aug 07, 2019 10:39 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

paul 300358 wrote:
Wed Aug 07, 2019 10:27 am
If it has been run for a while with the peg missing, I would check the shaft to see if its worn. They are cheap to buy and easy to fit.
I was typing as you posted! Thanks.
by ndevans
Wed Aug 07, 2019 10:38 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Thanks Phil. Moss are showing the plug as out of stock, which is a pain, as I could drive there tomorrow and pick up a new one. I will use the time by stripping the rocker shaft and seeing how worn it is, and replacing if necessary. 2 further questions. As you can see, I have the sintered type of ro...
by ndevans
Wed Aug 07, 2019 12:13 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Got a new gasket from Moss today. I've also cleaned up the head face with a sharp chisel. How does this look? IMG_20190806_233856~2.jpg Reading the comments above, a blockage in the rocker shaft was mentioned as a possible cause of overpressure, causing a leak. Looking at my rocker shaft (see photo ...
by ndevans
Tue Aug 06, 2019 12:34 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Managed to get the head off tonight, wasn't expecting I'd have time, but I did. There's no smoking gun as far as I can see. The head gasket looks ok, and the surface of the head and block look ok too. Difficult to measure, as I don't think I have a straight edge good enough-my steel rule has a sligh...
by ndevans
Mon Aug 05, 2019 10:18 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

How should I check the head and block for distortion? Is a steel rule and feeler gauge good enough?

Cheers N
by ndevans
Mon Aug 05, 2019 7:41 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

Ok will do, thanks. Unlikely that I'll get the head off before Weds, so don't hold your breath!

Cheers N
by ndevans
Mon Aug 05, 2019 7:30 am
Forum: Mechanical
Topic: Engine in bits for a rebore-anything else worth doing?
Replies: 241
Views: 7506

Re: Engine in bits for a rebore-anything else worth doing?

I didn't explain properly, my bad. When I put the head on, I torqued it to 40lbft, because that's what I did the after the previous rebuild in 2016. I knew about the 50lbft setting for later engines, and that you need flanged nuts, but I've not got the original nuts or studs now, so no idea which we...