Oops

[doubleboost]

If the valve seats are ok that will weld no problem

 

[Kayos]

When was that? I only go from 16 to 17 and back to 15 on the m60 of a morning

This morning, Radio 2 said M61 was busy but I was on the M60, I think it was between 18 and 17 that I saw the smashed up pug. I was heading to Liverpool

 

[Tinbasherdan]

If the valve seats are ok that will weld no problem

Seats are knacked on two cylinders and I quite literally can't machine anymore off that head. Managed to get a good one for nowt

 

[Tinbasherdan]

when I did the head gasket last time it really cooked the head and to be honest I think even after they took the head as far as they could skimming it might have still had the slightest warp still. Done well tho, 5 years of grief now

 

[mike os]

Looks like it came off the production line only yesterday

 

[the snooper]

when I did the head gasket last time it really cooked the head and to be honest I think even after they took the head as far as they could skimming it might have still had the slightest warp still. Done well tho, 5 years of grief now

I was thinking warped as soon as I saw it havnt you noticed performance dropping off and bad lumpy running ?

 

[Tinbasherdan]

I was thinking warped as soon as I saw it havnt you noticed performance dropping off and bad lumpy running ?

Been dropping off for a month or so but coupled itself with a dying turbo and pump timing shifting itself slightly causing a misfire so probs hadn't noticed it like I should've or passed it over as something else

 

[Tinbasherdan]

The heads been on for 4 years now

 

[normspanners]

Looks like its been running on the old style gasket, not the latest steel shim one, discos usually go there just by the exhaust manifold, or blow out directly at the rear out towards the bulkhead on number 4, one of the main problems is the bypass breather from the top of the thermostat housing doesnt flow back properly to the header tank they have a stupid tee effect thing that blocks, I do away with it and put a hose direct to the top of the header tank, so that you can see the water flowing, immediately the engine is started when the cap is off.
When blocked it means when its first started there is no immediate / enough water flow around the head to clear any air cavitations because the stat housing is higher than the water in the header tank and that is where the air accumulates, until the stat opens and the water flows freely but it is then too late and you suffer hot spots in the head.

 

[Tinbasherdan]

No it was an elring composite h/g

 

[normspanners]

ps diesels dont pink they suffer weak dribbling injectors that usually cause the 'GRIIIINDLE' (vibrate your tongue on the roof of your mouth as you say it) noise rather than the timing moving.

 

[normspanners]

No it was an elring composite h/g

yep thats the old style

the new modified ones are steel shim. MLS ones transmit the heat into the block better and are more reliable

 

[normspanners]

If the valve seats are ok that will weld no problem

Problem is the Heads usually crack by the exhaust ports and blow water into the exhaust manifold, VERY common on 300's

 

[Tinbasherdan]

Just ordered a replacement h/g and it was identical. Used them for years on other landies and had no issues, as have others I know, will consider a steel shim one next time tho if it happens again. It wasn't dribbling/weak injectors, it was pump timing that had shifted, re timed and it ran fine although has had a chatter for a few weeks now, evidently it was the head. Not the end of the world in any case, it'll be back together at the weekend when new h/g arrives. If it lasts another 5 years and costs me another 17 quid and an hour for a h/g I'll be happy

 

[Tinbasherdan]

Problem is the Heads usually crack by the exhaust ports and blow water into the exhaust manifold, VERY common on 300's

really? I've not seen a single one that's done that on a 300. Seen a lot of td5 with cracked head but not a 300

 

[dobbslc]

Im working on the theory that two Pistons in a shared cylinder is a viable concept

Split single engine.