Engine rebuilds

[Pentoman]

I told this bloke yesterday (geezer with many gold rings, chains and earrings but alright bloke!) I had rebuilt the top end of my car. He sucked through his teeth and asked me if I did the bottom end. I didn't because the compression test and a 'diesel/paraffin mix left in the cylinder bores' test didn't show them to be leaking badly. Plus obviously it costs a huge amount of time & money more. Anyway he said that I should've because otherwise the new top end and old bottom end will be 'out of whack' (or something like that) and cause problems for each other. Said something about the crankshaft? It was very vague and he's no engine expert. But is there any truth in this? It's an '80s road car engine, nothing very special.

[Howitzer]

Simply say that your Slatto flange ring was buggered up by the vacuum curve hysteresis being all a kilter.

If he nods or says yeah, that old chestnut, then he knows nothing.

If it isn't broken, don't fix it, so your engine will be fine.

Dave!

[stevieturbo]

Pentoman said:

I told this bloke yesterday (geezer with many gold rings, chains and earrings but alright bloke!) I had rebuilt the top end of my car. He sucked through his teeth and asked me if I did the bottom end. I didn't because the compression test and a 'diesel/paraffin mix left in the cylinder bores' test didn't show them to be leaking badly. Plus obviously it costs a huge amount of time & money more. Anyway he said that I should've because otherwise the new top end and old bottom end will be 'out of whack' (or something like that) and cause problems for each other. Said something about the crankshaft? It was very vague and he's no engine expert. But is there any truth in this? It's an '80s road car engine, nothing very special.

Therein lies your answer

[That Daddy]

stevieturbo said:

Pentoman said:

I told this bloke yesterday (geezer with many gold rings, chains and earrings but alright bloke!) I had rebuilt the top end of my car. He sucked through his teeth and asked me if I did the bottom end. I didn't because the compression test and a 'diesel/paraffin mix left in the cylinder bores' test didn't show them to be leaking badly. Plus obviously it costs a huge amount of time & money more. Anyway he said that I should've because otherwise the new top end and old bottom end will be 'out of whack' (or something like that) and cause problems for each other. Said something about the crankshaft? It was very vague and he's no engine expert. But is there any truth in this? It's an '80s road car engine, nothing very special.

Therein lies your answer

Seconded

[Graeme_Gman]

Absolute rubbish!

There is no problem with changing just the bottom or top end if there is no problem with the rest of the engine. I've certainly had no problem withe the numerous blocks or heads that I've replaced in the past.