Injection pump TAMD41B

[Adrianwool]

Hi folks,
Hope that someone can help me with this one, can the injection pump on this model be reconditioned, or is it necessary to buy a new unit. Is this a 'fearsome price' piece of reconditioning work / unit price?.

Any advice welcomed

Thanks

Adrian

 

[volvopaul]

Why do you think you need a new pump?

Yes they can be repaired, is the pump off and if so for what reason.

Find a reputable bosch agent, if local to southampton use mb diesels at eastleigh you can get then exchange too also consider the injectors at the same time as they are all part of the system, its no good making the pump 100% if the injectors are us.

Also consider the removal and refitting its not just a simple job of marking it up with a paint scratch and refitting it.

It must be dial timed correctly in order for the engine to perform, start up, and run as efficiently as the day it left the factory, let alone knocking the top off the pistons if not timed up right.

 

[Adrianwool]

Hi VolvoPaul,
The engine would run prior to work being done on the injector pump (I have only been able to determine this by looking at the pump which seems to have a couple of new unions on it and yellow paint dots at various points). I am awaiting the invoice with some trepidation!). What was happening was the engine would run seemingly ok, but when high revs were used a gallon or so of diesel would end up im the bilge of the boat after say, one hours running. Originally diagnosed to a leaking fuel pipe (a bit of a puzzle as all were renewed last year). The second bite of the cherry by the engineers identified a leak from the injection pump at high speed, necessitating a rebuild. Of course, being in Portugal something may have been lost in the translation and perhaps this meant just fixing new unions. The engine starts and runs easily, I have as yet not run it at high rpm, but the pump has definitely been off and on again during my absence, I suppose I was just trying to get a 'feel' from the forum as to whether this was likely to be a horrendously expensive job (or not) having never ventured into this territory before.

 

[Bilgediver]

Hi VolvoPaul,
The engine would run prior to work being done on the injector pump (I have only been able to determine this by looking at the pump which seems to have a couple of new unions on it and yellow paint dots at various points). I am awaiting the invoice with some trepidation!). What was happening was the engine would run seemingly ok, but when high revs were used a gallon or so of diesel would end up im the bilge of the boat after say, one hours running. Originally diagnosed to a leaking fuel pipe (a bit of a puzzle as all were renewed last year). The second bite of the cherry by the engineers identified a leak from the injection pump at high speed, necessitating a rebuild. Of course, being in Portugal something may have been lost in the translation and perhaps this meant just fixing new unions. The engine starts and runs easily, I have as yet not run it at high rpm, but the pump has definitely been off and on again during my absence, I suppose I was just trying to get a 'feel' from the forum as to whether this was likely to be a horrendously expensive job (or not) having never ventured into this territory before.

If the pump was properly inspected by a specialist then the cost of the service will depend on the inspection time and the cost of parts required.

If the pump was leaking to the sump at full revs it was probably also leaking at slower revs and this would normally give rough running. This could be due to plunger failure?partial seizure in one or more barrels of the injector pump which is probably quite unusual on engines of this size. Costs depend on what was replaced. This sort of damage normally causes debris to clog the injector?

I have seen this sort of failure on bigger marine engines where the pump partially seized due to incorrect clearances and so unable to take the change in temperature when switching from diesel fuel to heated boiler oil but not on our small toy engines

 

[Andrew_Fanner]

If it helps I've just been quoted £250+vat to do a Perkins one for a 6354. What I failed to ask was at what stage in burning this money do they stop if its knackered, or is there no such animal as too knackered to fix?

 

[Wiggo]

I paid £1300+ for a rebuild and a couple of injectors last year. You need deep pockets for injection pump problems...