V6 cranking but not starting - run out of ideas!

Technical questions and answers about the Mazda Bongo

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Re: V6 cranking but not starting - run out of ideas!

Post by willow2u » Wed Sep 16, 2020 10:04 am

i think i would pull the head or heads of where the valve damage is visible if thats possible in situ with the v6 to see if the damage is just the valves or if its holed a piston if its just valve damage should be quite easy to put in somre replacement valves and bobs your aunty
Junior Bongonaut
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Re: V6 cranking but not starting - run out of ideas!

Post by Albatros » Wed Sep 16, 2020 2:16 pm

Allans wrote: Tue Sep 15, 2020 8:48 pm
What do people think - is a replacement unit a sensible move? If so, any tips on what I should be looking for or what questions I should be asking? Of course buying a used engine comes with plenty of risk so I appreciate that there is no way I can be sure that I'll be getting something of quality.
I've both replaced and rebuilt V6 engines. You don't know exactly what's needed until you strip it down. That's why a garage can only estimate the cost.

The parts for the rebuild can take quite a while to arrive (depends what's needed) and be pretty expensive.

Replacement with a decent used engine is usually cheaper and can be quicker.

The trouble is, if you buy it and its faulty, the engine supplier can blame the garage. And obviously the garage blames the engine supplier.

So its easier if your garage will source the part for you.

If you buy a used one, look for one with a warranty.

Very sensible advice, thanks Allan.

I've had a look around and I've had a chat with Simon at Contract Mechanics in Harbury. He offers a refurbed v6 installed for £1750 (including sorting the LPG injectors etc). He sounded like he knew his stuff and seemed a nice bloke - can anybody here vouch for his work?
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Re: V6 cranking but not starting - run out of ideas!

Post by Bob » Wed Sep 16, 2020 4:28 pm

I've not used him, but he's been well recommended on here. 8)
Let's be sensible, not scared. 8)