Volvo D1-30F oil leak near throttle lever

[westward]

My Volvo D1-30F diesel has developed an oil leak near the throttle lever. Oil runs down the lever onto the fibreglass surround of the engine bilge. It's not a lot, about a teaspoonful every four hours or so.

After looking on this site I have decided the most likely culprit is the o-ring on the throttle lever shaft ; part no 4 in the MarinePartsEurope exploded diagram here :

http://www.marinepartseurope.com/en/volvo-penta-explodedview-7746500-23-35201.aspx

Does anyone have experience replacing this part. I have a copy of the workshop manual but it does not include instruction for taking the regulation assembly apart and anyway is only for the D1-30 B which is different.

Any help appreciated.

 

[Heckler]

My Volvo D1-30F diesel has developed an oil leak near the throttle lever. Oil runs down the lever onto the fibreglass surround of the engine bilge. It's not a lot, about a teaspoonful every four hours or so.

After looking on this site I have decided the most likely culprit is the o-ring on the throttle lever shaft ; part no 4 in the MarinePartsEurope exploded diagram here :

http://www.marinepartseurope.com/en/volvo-penta-explodedview-7746500-23-35201.aspx

Does anyone have experience replacing this part. I have a copy of the workshop manual but it does not include instruction for taking the regulation assembly apart and anyway is only for the D1-30 B which is different.

Any help appreciated.

It looks like the O ring fits in the groove of the shaft 31, be careful you will be dismantling part of the injector pump! Take off the nut 1 and 2 and 3 on 31 and undo the 4 screws, ease the assembly off, be careful you dont unhook the spring! Ease 31 put of the housing 5 and replace the O ring. Assemble all making sure 31 is connected to the spring and it hasn t come undone inside!
Stu

 

[westward]

Stu,
Thanks for the reply. Is this something you have done yourself?

 

[Heckler]

Stu,
Thanks for the reply. Is this something you have done yourself?

Not on this particular engine but I have overhauled injector pumps and diesel engines, it used to be my game.
Stu

 

[VicS]

Stu,
Thanks for the reply. Is this something you have done yourself?

I'd go along with Stu's advice. It looks doable with care,

The O ring might however be located in a grove in the cover ( "bracket") #5 rather than on the shaft as Stu suggests. Is so it will need a thin bladed implement to extract it.

Note the position of spring #3 before you remove it!

The arm #5 is the link to the injector pump. If the entire regulation system has to be removed this has to be disconnected from the pump assembly.

Id expect the text book method to be removal of the whole regulation system but that potentially take the lids off too many cans of worms for comfort, starting with lifting the pump assembly to disconnect #5 from it!

 

[Heckler]

I'd go along with Stu's advice. It looks doable with care,

The O ring might however be located in a grove in the cover ( "bracket") #5 rather than on the shaft as Stu suggests. Is so it will need a thin bladed implement to extract it.

Note the position of spring #3 before you remove it!

The arm #5 is the link to the injector pump. If the entire regulation system has to be removed this has to be disconnected from the pump assembly.

Id expect the text book method to be removal of the whole regulation system but that potentially take the lids off too many cans of worms for comfort, starting with lifting the pump assembly to disconnect #5 from it!

So, if I was doing it I would carefully take the outside bits off, undo the four screws to ease the cover off with the rod. Dont pull out too far, then and slide the rod out allowing the cover to come free. Secure the rod with some wire or something so the spring doesnt come off. Then, whether the O ring is on the shaft or in the cover, carefully peel it off or out and replace it.
Then lube the shaft with some engine oil and slide it back in the cover having checked the gasket is OK! and re assemble.
Stu

 

[trellsy]

I have the same issue and will be tackling the problem when the weather warms up. I would like to know if the origanal poster Westward attempted the job. If you did attempt the job, was the o ring in the cover bracket of #5 or is it on the shaft?
What was the best way please to solve the problem?
The nbew link to the diagram is d1-30f Regulation System - marine diesel engines
Thanks
Neil

 

[westward]

I have the same issue and will be tackling the problem when the weather warms up. I would like to know if the origanal poster Westward attempted the job. If you did attempt the job, was the o ring in the cover bracket of #5 or is it on the shaft?
What was the best way please to solve the problem?
The nbew link to the diagram is d1-30f Regulation System - marine diesel engines
Thanks
Neil

I'm sorry it took so long to reply to this. If you are still looking for an answer, I got a specialist to help me and he did very much what the posts above describe. It was a two person job as you need one person to hold the rod so it didn't fall inside. I'm sorry I can't remember if the seal was on the rod or in the housing. It was a ticklish operation but with two people fairly straightforward. No leak since so very successful.