TAMD41 Stainless Elbow

[bowler]

Hello all.

There are loads of these on ebay.

Exhaust Elbow Stainless Steel 859963 858481 For Volvo Penta Tamd31a Tamd41a | eBay

Anyone ever fitted one?

D

 

[harvey38]

Not fitted one nor know how they compare price wise with OE but with a 60,day return policy, probably worth getting one to better evaluate it.

 

[bowler]

OE 3 to 4 times the price I believe. Also not stainless. Good point on getting one for a nosey.

 

[colhel]

Will there be any issues with dissimilar metals?

 

[Plum]

Will there be any issues with dissimilar metals?

The OE one that I recently replaced on mine, at 20 years old, was cast steel with a stainless steel inner sleeve and although there was corrosion there was no appreciable corrosion where the dissimilar materials were in contact.

 

[bowler]

I have heard that corrosion is not an issue from a US boater that had fitted one. His was a more expensive unit from a US supplier.

I wonder if quality is an issue? Maybe not worth the risk...

 

[simonfraser]

I have heard that corrosion is not an issue from a US boater that had fitted one. His was a more expensive unit from a US supplier.

I wonder if quality is an issue? Maybe not worth the risk...

lots of US boaters on fresh water, lakes and rivers ....

 

[bowler]

True. I am in fresh also.

 

[bowler]

Hello all,

I bit the bullet and ordered a pair of these. The seller had sold 47 of them so I guess someone is fitting them, or selling them on...

It would appear that, as per Plums elbow mentioned above, it is cast iron with a stainless inner sleeve.

It's a solid thing and weighs the same as the ones I took off (for what its worth) - 3.8kg.

I am no specialist but it looks good to me but I have never had a new one in hand to compare it to.

What is also interesting is that loads of these on fleabay have jumped in price to 300 odd quid. I wonder are sellers going for the 'reassuringly expensive' approach to selling boat bits. Stainless Exhaust Elbow For Volvo Penta TAMD31A TAMD41A # 859963 858481 | eBay

Would you fit it on your boat? I think I am going to. Pictures attached.

 

[Montemar]

I fitted one. Straightforward.
There was a paper gasket where the pipe connector sits. It is 1mm thick gasket paper.
Exhaust pipes were not very easy to remove or refit. I put an extra jubilee clip on for security in case my exhaust pipe fitting was not up to scratch.
Have not had any problems.

 

[bowler]

I fitted one. Straightforward.
There was a paper gasket where the pipe connector sits. It is 1mm thick gasket paper.
Exhaust pipes were not very easy to remove or refit. I put an extra jubilee clip on for security in case my exhaust pipe fitting was not up to scratch.
Have not had any problems.

A chinese one?

D

 

[Seastoke]

Bowler why have you changed if the old was ok

 

[Plum]

I fitted one. Straightforward.
There was a paper gasket where the pipe connector sits. It is 1mm thick gasket paper.
Exhaust pipes were not very easy to remove or refit. I put an extra jubilee clip on for security in case my exhaust pipe fitting was not up to scratch.
Have not had any problems.

Are you referring to the cooling water pipe connector?

 

[bowler]

The paper gasket is on the blanking plate below the pipe. I think that is what he is refering to?

I am changing because I think they might be original. Plus, my SB exhaust temp was reading a bit too high for my liking at certain low revs so I pulled the elbow off for a look in case the water flow was creating an air pocket in the exhaust. Decided to pull the other while I was at it to compare.

Thought I'd look at the chinese elbows because I like a bargain...

 

[oldgit]

40A Riser.
41B Riser.
Both looked pretty good externally until removed, held together in the end mainly by paint and corrosion.

 

[Mr Googler]

this didn’t look too bad for the angles you can see when in situ! I’ve used Chinese elbows on 3 different boats….no issues. I see them as a service item personally. Such an important item and a possible boat sinker or engine scrapper if they let go

 

[oldgit]

View attachment 172995

this didn’t look too bad for the angles you can see when in situ! I’ve used Chinese elbows on 3 different boats….no issues. I see them as a service item personally. Such an important item and a possible boat sinker or engine scrapper if they let go

Blimey those are real corkers.
Mine were all replaced with budget aftermarket stuff.
The difference in price between the "genuine" VP risers and the after market clones was once impressive , approaching 100%, the gap has closed considerably over the years.The aftermarket risers all appeared to be well constructed and fitted without drama, a casual observer might wonder as to if the replacement items were at least as good as the genuine article.
Previous boats fitted with VP engines had risers that must have been untouched for years mainly due to the absolute pig of a job to remove/and check them, eventually reluctantly removed under duress due to engine temperature problems, the fact they were falling to bits only revealed during removal.
On one occassion a 41B riser blew off completely. The clamp holding it onto the turbo failed.
The " stainless "clamp had a mild steel bolt which corroded out, the amount of soot in every single nook and cranny of the engine compartment was very impressive.
The riser of course, on examination, had all the structual integrity of an "Aero" chocolate bar.

In the case of the 40A the collapse of a riser resulted in the discovery that the top of the aluminium exhaust horn had virtually disappeared due it not getting on very well with the carbon in the exhaust hose.
The chances of replacing with a new horn ? non existant and the fact the nuts holding it onto the transom assembly were totally impossible to get to and would probably sheer off at first sign of a socket going anywhere near them, led to some inventive use of chemical metal and a metal sleeve.

 

[harvey38]

And possibly the OE unit may have the same origins as those recently purchased from Ebay.

 

[DavidJ]

I bought mine from Keypart who I trust and I noticed they came with a very easy to peal off “Made in China” sticker so possibly the same source as cheaper eBay ones. My old ones still intact at 20 years. We will find out in 20 years time if as good.

 

[Montemar]

The one I bought was presumably Chinese and the gasket was for the water outlet.
It is a very simple device and it seemed well made. An engineer fitted a VP elbow to the other engine and roundly cursed its quality. The fact he changed it prompted me to change and felt disinclined to buy VP.