Colombo & Bariani - camshafts since 1934 - catastrophic failure in Guy Croft engine

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Guy Croft
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Colombo & Bariani - camshafts since 1934 - catastrophic failure in Guy Croft engine

Post by Guy Croft » Tue Jun 05, 2018 8:29 pm

Recent catastrophic failure of C&B cams on a GC built 8V Integrale.

1. Cams bought from them for a Lancia 8v Integrale started to wear out within 10 minutes, metal debris all over the engine..
2. Tested for hardness by Rockwell method by my respected neighbours A Green Engineering Ltd by an ex-aerospace inspector - not heat-treated at all. Returned to C&B at MY cost! Results invalid according to owner of C&B - Vickers hardness testing method must only be used! Vickers testing done at cost to me! Results sent to C&B!
3. Total 7 months of trying to get C&B owner Alessandro Bariani to admit liability and pay for the entire engine rebuild
4. Grudging 'insurance payout' from C&B eventually that would not cover even 1/2 the cost of a total engine rebuild, removal from the car, re-installation, 3 days or more of the time of an expert consultant recommended by me - Nikola Radenkovich (founder of RP Labs) on site in Lancashire - having flown-in specially for the job, far less my time messing about doing emails to sort this mess out... Mr Bariani complained about how many emails he had to deal with to get the insurance payout. He even went so far as to say by email (I have all the records) that if we took C&B to court it would take YEARS to achieve a settlement. Not really what I want to hear from Italy's most 'respected' and oldest camshaft manufacturer - is it?
I myself would have covered the costs from my firm IMMEDIATELY. Fortunately - legally - I did not buy the cams, Tom Frame did. I am saddened that I recommended C&B but I trusted them. I no longer do nor ever will again
5. Replacement cams supplied by C&B as soft as raw En24T, colored like they were heat treated. They were not, They were about 32 HRc. Nowhere near the Rockwell or Vickers hardness specified to me by email by Mr Bariani. I had the replacement set tested by THREE agencies including most latterly Piper Cams in Kent UK. Tested personally by Technical Director and friend John Crabb who's words I have quoted.

For the record I carried out Vickers testing (in addition to Rockwell) although I knew that the test results could be easily correlated - and that is fact.


CAMS UNFIT FOR PURPOSE - TWICE. NO QUALITY PROTOCOLS IN PLACE FOR THIS FORMERLY RESPECTED COMPANY. Once is forgivable but twice is carelessness. Or worse - neglect.

My intuition - though I cannot prove this since Mr Bariani dodged the question from me - is that he is now having some items (if not all) made in China and has no quality control measures in place for those parts.

I warned Mr Bariani that I would make this post - since he doesn't take GCRE or me or my clients seriously or consider us to be of any importance.

As I said, my advice is don't buy from C&B. Very sad.

I shall NEVER trust them again AND I strongly advise you don't either. All I will say is BUYER-BEWARE.

GC
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Guy Croft
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Re: Colombo & Bariani - camshafts since 1934 - catastrophic failure in Guy Croft engine

Post by Guy Croft » Mon Jun 11, 2018 6:23 pm

Tom Frames' engine - crankcase this week after complete strip/prep and re-assembly. I had to completely strip the entire fcuking engine.

Next op put the overhauled cylinder head together with a TRUSTWORTHY inlet cam of my own profile by Kent Cams and an OE 8v Integrale ex cam with the cam sensor drive slot in the right place...

I mean, I cannot simply 'bang' the engine together with metal debris everywhere.

I have stripped every part of this engine and inspected and cleaned every single piece. Only if you have done this can you possibly imagine how long that takes for an 8V Integrale and how much space it takes up....

Damn Colombo and Bariani for wasting MY TIME and my client's hard-earned money on this inappropriate-up and trying to kid me that their products were fit for use...

Given that Colombo and Bariani cannot supply 8V Integrale cams to me anymore that I can trust I think I will start making steel billet cams again as I did in the 90s

I hope that respected members of this site will forgive my extreme anger over this.... it may seem to fly in face of my website protocols but I make an exception in this case as the man who pays to run this respected forum...


GUY CROFT
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Re: Colombo & Bariani - camshafts since 1934 - catastrophic failure in Guy Croft engine

Post by 4v6 » Tue Jun 12, 2018 7:06 pm

Given the circumstances Guy, I cannot see anyone having cause to criticise your good self over a small breach of your own protocols, its totally understandable.
Hope it all works itself out for you, best wishes, Tony.
Tony Warren. GC #96.

Guy Croft
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Re: Colombo & Bariani - camshafts since 1934 - catastrophic failure in Guy Croft engine

Post by Guy Croft » Tue Jun 12, 2018 8:07 pm

very many thanks dear Tony..

GC
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Re: Colombo & Bariani - camshafts since 1934 - catastrophic failure in Guy Croft engine

Post by Guy Croft » Tue Jun 19, 2018 7:37 pm

Tom's cylinder in build today with an OE spec Int 8v ex cam and GC 2B inlet cam..

I could really do without this, at any price, I have much more important things to do.

C&B - thanks (not) for this imposition....

GC engines are built BY ME to last 20 years or more, not ten minutes...

GC
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