Mmm is that skimmed or not. ???

[Barking Mat]

Is the B20 a standard Volvo red block engine ?

 

[W.olly]

As it's derivative of the B20, is there anything to stop you using a B20 block from a breaker? Did the marinising add anything to the block casting, iow?

Is the B20 a standard Volvo red block engine ?

Just a Volvo B20 block. all tats different is the water pump and intercooler. wit cooling pipes

 

[W.olly]

I don't recall reading how clean was the block when it went in? Did you see all of the pitting, and ask for it to be gone, or had you not cleaned off all the previous head gasket remnants, so th efaults were still covered?

If the latter, MAYBE they took a first pass to clean off the crud, and then realised how bad it was. Perhaps it should've gone in clean. Perhaps they should have phoned you to discuss it, or explained when you picked it up. But you were in a hurry (Camping) so maybe they didn't feel inclined to waste your time reading the file notes...

I'm disappointed for you that 99% of your dealing with others are so problematic. Mine aren't.

If they have misunderstood something. i cant see how as it has been skimmed just very little. and no reason why as thye did not talk to me about anything wen they could of and had chance.

I could of walked out without paying as the chap who put it in the van went off to answer the phone and then talk to another customer. i stood there untill somebody else came and i paid. it seems they dont know what there doing and not organised. Which i so excuse for bad work let out wit no explanation at all.

but as said ill call them tomorrow. I am a decent chap, not arrogant or aggressive so ill be nice even with this.

Just out of curiosity , whats it off ,,, it looks old and low tech , a lot of talk here about piston heights etc etc , look old enough to me to have clearance in feet and inches Im thinking its not for the TT next year .

This is a 1975`ish Volvo block, same as used in Amazon cars etc. Well where they were first used untill modded for marine use by a couple of companies

There high revving engines to run max output upto 4000rpm. so need to be half decent as not plodding around in a car.

 

[W.olly]

ok thought.

ill call them tomorrow and depending on wat thye say aftwer i ask if they will do a better job, well skim back more. I will rebuild the bottom end to see wat clearance there is for the pistons. if enough for more to be taken off ill give it them back, wit no charge i should say as i paid once and if there unsure on wat there taking off it shows they should get specs on the engine there working on. They only asked for pistons to do it.

 

[W.olly]

Or thicker gasket MMMmmmm

 

[Barking Mat]

Off on a slight tangent question.

So you skim an engine block.

Depending how much you take off can you really buy head gaskets of different thicknesses, or a head gasket is a head gasket, and it's the con rods length you change ?

 

[scottmk1]

Off on a slight tangent question.

So you skim an engine block.

Depending how much you take off can you really buy head gaskets of different thicknesses, or a head gasket is a head gasket, and it's the con rods length you change ?

Some engines have a range of gaskets available to accommodate different piston protrusions. You measure the protrusion and select the gasket thickness to suit.
Skimming the pistons is also an option as long as the piston design allows it.
Never heard of rods being changed to accommodate different deck heights.

 

[Barking Mat]

Some engines have a range of gaskets available to accommodate different piston protrusions. You measure the protrusion and select the gasket thickness to suit.
Skimming the pistons is also an option as long as the piston design allows it.
Never heard of rods being changed to accommodate different deck heights.

Thanks, I had been wondering.

 

[Woody.v8]

Off on a slight tangent question.

So you skim an engine block.

Depending how much you take off can you really buy head gaskets of different thicknesses, or a head gasket is a head gasket, and it's the con rods length you change ?

No you deck a block, different thickness gaskets are usually available but the pistons are usually machined down to suit the block height.

 

[minimutly]

As it's derivative of the B20, is there anything to stop you using a B20 block from a breaker? Did the marinising add anything to the block casting, iow?

Lol, start again advise, suprised it's not "do you really need to use an old volvo" advice...

 

[Barking Mat]

Lol, start again advise, suprised it's not "do you really need to use an old volvo" advice...

Red block Volvo engines, are renowned for their reliability and power.

 

[Morris]

Not even custom. Ford and Chevy main dealers used to do different pushrod lengths straight from the factory for this reason.

They do but I usually go a bit further than factory stuff will accommodate or survive.

 

[tom2207]

If they have misunderstood something. i cant see how as it has been skimmed just very little. and no reason why as thye did not talk to me about anything wen they could of and had chance.

I could of walked out without paying as the chap who put it in the van went off to answer the phone and then talk to another customer. i stood there untill somebody else came and i paid. it seems they dont know what there doing and not organised. Which i so excuse for bad work let out wit no explanation at all.

but as said ill call them tomorrow. I am a decent chap, not arrogant or aggressive so ill be nice even with this.




This is a 1975`ish Volvo block, same as used in Amazon cars etc. Well where they were first used untill modded for marine use by a couple of companies

There high revving engines to run max output upto 4000rpm. so need to be half decent as not plodding around in a car.

you catch more flies with sugar than salt.

 

[cardiffrob]

If for any reason you decide to use as is, Stag Wellseal Jointing Compound will ensure a good joint.

Ordered some and tried it last night. Seems it actually lets Gas out rather than keeping it in. Did I buy the wrong version?

 

[Morris]

No, you're good, slather it on.

 

[Keithmac]

I used to take a Stag Dynamite to work with a rice, tasted lovely but had a weeks worth of saturated fat in it!.

We we only reminiscing about these at work on Saturday.

 

[Keithmac]

What head gasket is it, composite or Metal Layered Steel?.

Composite are a bit more forgiving but personally I wouldn't use the block in that state.

 

[W.olly]

well before i called them i put a piston in to see, and it has maybe 2thou to go for skimming.

I called them and they said it was max they could do before scrapping the block. When i mentioned nothing was said to me before collection or why it wasnt skimmed first, apparently you have to rebore first then skim. Cant argue with that as i dont know if thats correct.

So as it is i can either use as is, or fill the low spots with JB Hi temp weld or Stag Wellseal Jointing Compound.

 

[W.olly]

What head gasket is it, composite or Metal Layered Steel?.

Composite are a bit more forgiving but personally I wouldn't use the block in that state.

this is the gasket kit, i think composite with metal rim for the bore tops.

Head Gasket Kit for Volvo Penta AQ115A, AQ130A, AQ130C, MB20B, Repl: 876356, 875401

De-coke Gasket Set for Volvo Penta Petrol Engines

repowermarine.com

 

[Beanwood]

Well at least you have their rationale now, even if the comms were poor.
Is it possible to skim further if you then skim the pistons? Or is it an issue with breaking through oil/water ways etc?