Mystery knock solved

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Rob 400e
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Mystery knock solved

Post by Rob 400e » 31st May 2019 - 5:30pm

Well the 411 went off to Harry Harpics and the strip down began. I received an email with accompanying photos and a metallic object was sitting on top of the piston!!! On very close inspection of one photo it looks to me like a Jubilee clip, well the remains of one. The good news is there is little damage to the head of the piston and no damage to the cylinder head. Next head scratcher how has that got in there?
Type 411 Le four door auto .

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broady_6
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Re: Mystery knock solved

Post by broady_6 » 31st May 2019 - 5:52pm

We really were fighting a touch one there then! With out seeing it and the size of it, the only obvious answer is down the intake some how.
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937carrera
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Re: Mystery knock solved

Post by 937carrera » 31st May 2019 - 6:06pm

Indeed a tough one, but if I could just post this from the first page of the other thread.

Question is, are you going to ask the first garage to pay for the work done by the second garage
937carrera wrote:
25th February 2019 - 12:56pm
Can you put your car details in your signature, it helps us to help you - User control panel (top right) / profile / edit signature :thumbsup:

So oil level is fine, and very low mileage, or been round the clock at least once - probably only once, though my 412LS has been round twice

There's nothing from the job list that would give any suspicion, unless something was dropped into the inlet menifold when it was being resealed - pretty unlikely, but not impossible.

I'm with broady, drain and inspect the oil. The type 4 has an additional filtration system I think compared to a type 3, a removable oil strainer. That should have the cover removed and the gauze inspected
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Rob 400e
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Re: Mystery knock solved

Post by Rob 400e » 31st May 2019 - 7:42pm

I've received another email from Harry Harpics on my theory of a Jubilee clip, he thinks not more likely to be a tin wear 6mm washer.
I will be going to see the first garage owner when I receive the engineers report. I will be pushing for compensation but easier said than done.
Type 411 Le four door auto .

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broady_6
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Re: Mystery knock solved

Post by broady_6 » 31st May 2019 - 8:49pm

Bit of a catch 22 really. If you had taken it back to the original folk they may have realised and tired to cover up the mistake and charged you. But now someone else has worked on it, they will more than likely say, "nowt to do with me gov, someone else has been messing about wiith that"

Or am i just to synical?
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937carrera
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Re: Mystery knock solved

Post by 937carrera » 31st May 2019 - 9:17pm

Yeah, and with the undoubted benefit of hindsight, use of an endoscope and magnet could well have resulted in a fix without disassembly. :roll:
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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broady_6
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Re: Mystery knock solved

Post by broady_6 » 31st May 2019 - 9:37pm

The sultan of swing

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937carrera
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Re: Mystery knock solved

Post by 937carrera » 16th June 2019 - 4:17pm

Rob, any news on the rebuild or resolution with the original garage, do you have the car back yet ?
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Rob 400e
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Re: Mystery knock solved

Post by Rob 400e » 18th June 2019 - 9:48pm

Rebuild not yet finished, I’m hoping it will be finished by the end of June. When it’s sorted I will also have an engineers report so I will go back to the first garage with that and see what they have to say? They can’t deny their at fault but we will see . Will keep all posted.
Type 411 Le four door auto .

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937carrera
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Re: Mystery knock solved

Post by 937carrera » 19th June 2019 - 12:04am

Good luck with getting the car back and everything resolved :)
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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broady_6
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Re: Mystery knock solved

Post by broady_6 » 19th June 2019 - 9:34am

At least you wont miss the whole summer!
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Rob 400e
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Re: Mystery knock solved

Post by Rob 400e » 19th June 2019 - 6:29pm

There is a chance I may, I still don’t know if the transmission is ok. Until the engines sorted it can’t be road tested.
Type 411 Le four door auto .

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937carrera
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Re: Mystery knock solved

Post by 937carrera » 19th June 2019 - 6:36pm

That's news.... what do you think is wrong with the transmission ?

I wouldn't want the engine and box putting back in, only for it to have to be taken out again.

I assume the clutch is being checked / replaced while the box is out as well ?
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Rob 400e
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Re: Mystery knock solved

Post by Rob 400e » 19th June 2019 - 6:51pm

It’s automatic the original problem was the car would change into top(third) but not accelerate. Hence going to the first garage. Proper nightmare!
Type 411 Le four door auto .

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937carrera
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Re: Mystery knock solved

Post by 937carrera » 19th June 2019 - 6:55pm

If it accelerated in 1st and 2nd, but not 3rd, then I think that's an engine power problem, not transmission.
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Rob 400e
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Re: Mystery knock solved

Post by Rob 400e » 19th June 2019 - 8:35pm

Yes the first garage thought that plus not enough vacuum hence the inlet manifold being re sealed and the nightmare that followed.
Type 411 Le four door auto .

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937carrera
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Re: Mystery knock solved

Post by 937carrera » 5th July 2019 - 9:49pm

Any signs of the car returning yet Rob ?
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Rob 400e
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Re: Mystery knock solved

Post by Rob 400e » 8th July 2019 - 10:19pm

The cylinder heads were sent off for a bit of work, new valve guides so still waiting for them before re assembly will keep you posted.
Type 411 Le four door auto .

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Rob 400e
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Re: Mystery knock solved

Post by Rob 400e » 8th July 2019 - 10:46pm

I’m also thinking Harry Harpics is off on holiday phoned last week and nobody picking up!! The valve seats are being re cut as well: time is ticking away might be next summer before I’m mobile 😢
Type 411 Le four door auto .

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937carrera
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Re: Mystery knock solved

Post by 937carrera » 5th August 2019 - 8:34pm

Any news a month on Rob ?
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Rob 400e
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Re: Mystery knock solved

Post by Rob 400e » 8th August 2019 - 5:38pm

New update... Received an email Wednesday the heads are back from the machine shop, and engine assembly is underway. I’m guessing I will receive another update next week hopefully asking me to collect it!! Fingers crossed. If that is the case and all is well could squeeze in a show possibly.
Type 411 Le four door auto .

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broady_6
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Re: Mystery knock solved

Post by broady_6 » 2nd September 2019 - 9:23am

More details in this new thread, to keep the story all tied together

viewtopic.php?f=26&p=68397&sid=c1f3a945 ... c8f#p68397
The sultan of swing

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Rob 400e
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411 back on the road.

Post by Rob 400e » 27th September 2019 - 7:57pm

Received the phone call I’ve been waiting for the 411 ready to go. Got the train down to Essex and drove 265 miles back to Burnley. The car never missed a beat in my opinion it’s a testimony to the engine builder Paul Miller ( Harryharpics) he is more than happy to take on the type4 fuel injection. Now looking forward to next years events.
Type 411 Le four door auto .

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broady_6
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Re: Mystery knock solved

Post by broady_6 » 27th September 2019 - 10:01pm

That great news! Shame it was a bit of a long way around. But at least you got it sorted in the end :)
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937carrera
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Re: Mystery knock solved

Post by 937carrera » 27th September 2019 - 10:16pm

Good news then, and remember you are halfway to an oil change.

Where do things stand with the garage that you think dropped the washer into the head ?
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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