New Head Gaskets

**ozscott** · 14th January 2017, 01:09 PM

Mario those are bits I had yet to wipe off from when I cleaned the carbon off the piston tops. No scratches at all. When I stripped my lovingly maintained 2 stoke Yamaha 115hp outboard it has discoloured bores. It does very little idling just to warm up then it runs flat-out...no trolling. I have seen some bore discoloration in a d1. You may be right but I'm not too worried. It used about the same amount of oil as my 4.0 did when it was run in and doesn't blow any obvious smoke out the back when cold and when running hard...I have had plenty of people on convoy behind me over the last.few years. Heaps of power. I reckon it's fine but I won't be pulling it out any time soon. Cheers

Ps Mario this motor has been on petrol only for 99 per cent of its life. Only nice clean LPG for a very short time initially when I got it.

**ozscott** · 14th January 2017, 02:10 PM

To be safe I will use FTC Decarbonizer as Brid the owner reckons it is good for Petrol motor deglazing and Decarbing. Cheers

**101RRS** · 14th January 2017, 05:05 PM

All quite normal for a petrol engine - light carbon - obviously if a full rebuild a hone would remove it but otherwise looks normal to me - will also be on the walls of the piston.

Not how much less it is here, noting it is in the combustion chamber, compared to what it was on the piston crowns before cleaning up.

**ozscott** · 14th January 2017, 05:26 PM

It was very easy to clean off to Gary. Thanks for that mate. I had just started using FTC Decarbonizer so my bet is it started to lift the carbon. Cheers

**ozscott** · 14th January 2017, 07:19 PM

Bit hot today for 2 much work but she is resembling a V8 again. Cheers

Nice to go slow and do it right. Here is the rocker cover....it certainly didn't look like this when I took it off. Took the time to remove the baffle and scrub both. Then put threadsealer on those little screws and cranked them down...don't want a little screw floating around.

Also put Loctite silver high temp anti seize onto the exhaust manifold bolts.

**Pedro_The_Swift** · 14th January 2017, 08:33 PM

Is this when you install those 8 hiclones you bought?

**Roverlord off road spares** · 14th January 2017, 08:50 PM

Originally Posted by Pedro_The_Swift

Is this when you install those 8 hiclones you bought?

Are you serious? surely he didn't after all the advise on the forum

**101RRS** · 14th January 2017, 09:10 PM

Originally Posted by ozscott

It was very easy to clean off to Gary. Thanks for that mate.

I don't know - my bores were given a hone and I cleaned my pistons with a dremel wire brush. However my base engine (40,000km) did have similar markings before I rebuilt it.

I guess if it easy to remove go ahead but I wouldn't sweet it too much - noting if you hadn't pulled the heads it would have still been there and if you clean it off now, once you have your engine running it will be back in short order.

garry

**ozscott** · 14th January 2017, 09:30 PM

Originally Posted by Roverlord off road spares

Are you serious? surely he didn't after all the advise on the forum

You think I would have Mario...?

Apart from growing up in a family of A grade mechanics and mechanical engineers I am a cynic by nature. Pedro was having fun.

Cheers

**Pedro_The_Swift** · 15th January 2017, 07:52 AM

I reckon the inlet manifold is one of the best things on a D2 V8, someone who actually builds engines sat down and had a think.

then the tech heads put sensors everywhere

Thread: New Head Gaskets

Thread Tools

Bookmarks

Bookmarks

Posting Permissions