Essex v6 3.0l cylinder marks

[Mk3p100steve]

Hi
I'm new to the forum and wondered if its possible to search for topics ? 420 pages of classic car topics is a lot to trawl through .
In the meantime I would welcome advice on our engine . My son and I have stripped our engine , from purchase it steamed heavily on starting and it has developed a bottom end knock .
It's got oversize pistons in so has been rebooted in the past ,we think to +0.030" .The photos are of cyls 4 and 5 and we are particularly worried considering the steaming issue .
Fortunately we have a specialist engine shop reasonably local and have had reassurance that they cyls can be sleeved if necessary but I wondered if anyone here has had similar damage/blemishes/pickup/Mark's.
Thanks ,Steve

Edited by Mk3p100steve on Sunday 21st March 07:59

[john2443]

Welcome!

Top right, in the blue strip it says Search. Probably quite difficult to search for something so specific but might be worth trying.

I have no idea about the marks but quite likely someone will come along who does.

[Mk3p100steve]

Thanks ,maybe because I'm new my functions are limited ,all I have on the blue strip is previous and next relating to pages .

Edited by Mk3p100steve on Sunday 21st March 08:20

[838HNK]

I'd get it to the engine shop and get them to measure the wear on the bores.... those look like steam marks not wear but there is only one real way to find out. I know its a big ask as the block weighs a ton.

1. If it's only light they can just hone the bores so you can reuse the existing pistons with new rings.

2. If its too bad and you'll have to rebore and go to another set of oversize pistons. No sleeving needed. I think +40's are available and my
Essex V6 has +60's taking it to 3.1 litres and I see +90s are out there.

I assume you'll do the heads at the same time - again get the engineering shop to advise on what's needed - make sure they're flat as if thats
steam marking in the bores it was probably a head gasket gone ..

Burton is a good place to go look for bits ..

https://www.burtonpower.com/tuning-guides/tuning-g...

Essex V6 eat their fibre timing gears and so an upgrade to metal ones - whilst expensive is deemed prudent. I'd also go for a mild cam upgrade ... and some steel exhaust headers ... and .. and .. and.

I rebuilt the Essex V6 in my Gilbern Genie a few years ago ...

Edited by 838HNK on Sunday 21st March 09:05

Edited by 838HNK on Sunday 21st March 09:08

[Mk3p100steve]

john2443 said:

Welcome!

Top right, in the blue strip it says Search. Probably quite difficult to search for something so specific but might be worth trying.

I have no idea about the marks but quite likely someone will come along who does.

Sorted the search John thanks ,its not available on my phone but there on the laptop

[Mk3p100steve]

838HNK said:

I'd get it to the engine shop and get them to measure the wear on the bores.... those look like steam marks not wear but there is only one real way to find out. I know its a big ask as the block weighs a ton.

1. If it's only light they can just hone the bores so you can reuse the existing pistons with new rings.

2. If its too bad and you'll have to rebore and go to another set of oversize pistons. No sleeving needed. I think +40's are available and my
Essex V6 has +60's taking it to 3.1 litres and I see +90s are out there.

I assume you'll do the heads at the same time - again get the engineering shop to advise on what's needed - make sure they're flat as if thats
steam marking in the bores it was probably a head gasket gone ..

Burton is a good place to go look for bits ..

https://www.burtonpower.com/tuning-guides/tuning-g...

Essex V6 eat their fibre timing gears and so an upgrade to metal ones - whilst expensive is deemed prudent. I'd also go for a mild cam upgrade ... and some steel exhaust headers ... and .. and .. and.

I rebuilt the Essex V6 in my Gilbern Genie a few years ago ...

Edited by 838HNK on Sunday 21st March 09:05

Edited by 838HNK on Sunday 21st March 09:08

Good advice thanks , we plan an unleaded head conversion and the engine shop has the next size up pistons if we have to go down that route ,already has mild steel timing gears thankfully . The and ..and .. and will no doubt get done too

[Boosted LS1]

I would say the white marks lower down the bore means the block's porous. I've see similar on a cologne engine that was bored out. You could test it with penatrating dye.

[paintman]

In the early 80s I had a Scimitar SE5 with the 3 litre Essex.
Had a head gasket go.

As it runs separate exhausts for each bank it was pretty obvious which side had gone!
Head & block checked.
Refitted it with a new hg from a well known maker.

The day after the owner's club magazine Slice arrived with advice not to use gaskets by that maker due to problems.

Sure enough the new gasket let go less than 1000 miles later.

Head off & all checks fine.
Refitted using genuine Ford HG & no further issues.
The Ford HG had a sealant in it in various positions, the other didn't.

The other maker got wind of the club advice & threatened to sue but dropped it after a large number of reports.

I don't know if the sealant issue is still the same,but worth bearing in mind.
As a result of this I've preferred to use genuine hgs.

[neutral 3]

As above, Burtons.

We need an Essex V-6 engine, anyone has one ?