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As well as the etching primer, I'd then use a filler primer before the top coat, it'll help fill in any imperfections where in time the etching primer may flex away and allow water to get underneath again as well as allowing you to flat sand easier before the top coat. Do you know what top coat...

As lynall says, it could be a dropped liner. In fact I'd go further and say it will be a dropped liner (assuming all hoses are okay) if the engine's never been worked on before in which case you're wasting your time and money replacing the gasket(s). All later V8's should have the composite...

I understand now, makes sense and matches what I did on my old pulse air heads on another engine. As I didn't have the original fittings I couldn't modify them this time though hence trying to find out what they were used for and what the thread was originally. Problem solved though now thanks...

No worries, bits of aluminium swarf into cylinders would be interesting... Yes they're one of the spare sets that I've accumulated and decided that they are the least warped so are going on to the rebuild and I had all the valves out to re-cut the seats and port out. I admire your ability of...

Fleabay number: 391546342585 for the bigger unit (also available in red but other half wanted yellow for some strange reason...)

Finally had a chance to test the bigger power pack. Came in a nice plastic case although the inside tray is flimsier than some of my heels. Unit itself has all the usual addons for charging phones, etc. and with four USB outlets it's certainly been useful when I've needed to charge the phones...

Thanks, sorry for delay. Confirms what I'd found out that it's the secondary air emissions system. Closest thread I could find was 3/8" BSPF so have drilled them out and re-tapped to take metric. Didn't fancy welding as knowing my luck I'll distort the heads and given the time I've just spent...

In case anyone is in a similar situation I've just had clarification this afternoon on the issue from the authority that counts. As the Disco is presented to the MOT station running on LPG the vehicle is not subject to a full cat test therefore the presence of cats is not required. It may...

Just been getting a pair of heads ready that I've had lying around and notice that on cylinder numbers 3, 4, 5 and 6 (the inner ones on both heads) there are some threaded holes above where the exhaust manifold is bolted on and going through into the exhaust tract. On the earlier 3.5's I know...

Lithium Ion or more likely LiFePo4. That's why they can cope with such high discharge rates. The downside is that to charge them you either need a complicated (expensive) cell balancing system to take charge quickly or you have to charge at a very low rate, ie the 1-1.5 Amps their chargers come...

Will do. It'll be a few weeks until I get a chance but I'll try starting the Defender again without the battery in. If it can do that I'll be more than a little surprised.

The bigger one I've just ordered but haven't tried yet: 391546342585 The original one that the price has since gone up on: 112256898872 Admit to being incredibly sceptical myself. Also ran an old laptop off the original one for a couple of hours although it did get a bit warm. Came with all...

Got one of fleabay the other day as one of the cars was playing up, 180000mAh 600CCA for about £30. Was sceptical and wanted to make sure it'd be okay. Started the mower first with a completely dead battery, no problem. Then tried a 1.4 petrol that has a habit of flattening it's battery when...

Thank you for that, I've the same file and have followed it through such that the vehicle has to be tested to pass the emissions based on either the specific limits or the default limits dependent on whether you argue that running on LPG provides an exact match for the vehicle. Both however are...

Sorry, why won't it pass it's test without the Cat? The MOT checklist states quite clearly that a vehicle will fail if a catalytic converter is missing when was fitted originally but only if the vehicle is subject to a full cat test. As the Disco is on LPG my understanding is that it's not...

Sure this will have been asked somewhere before but apologies, can't find any relevant thread... Has anyone removed the Cats from a V8 Thor system? Have just got the engine out after a couple of days lying over the engine bay with my legs in the air and noticed the cats are looking elderly. As...

Have you tried doing a pressure test on the water system? That may narrow the problem down further for you. I had a suspected head gasket failure and after several false starts eventually traced the issue to a tiny crack in the head itself and although mine had only been skimmed once they had...

Agree with above, you need to have a better method of checking your mpg than over only 10 gallons and what you think of as not fast or hard driving might not be what others thinks of. However if you do that and are still only getting 10mpg or so then you need to check a couple of other things...

Surely some kind soul has a lonely V8 out there that wants a nice new home? (Or alternatively has a lump of scrap in the garage that needs to be changed into some nice new plastic polymer notes?!)

Sorry, didn't get that then. You're right "they" could be misconstrued. Should have used the singular. Sorry for any confusion.