MEP-802A questions

[Light in the Dark]

Take care of the O rings and replace the pump to manifold gasket at the same time: https://dpequip.net/shop/generator-...ousing-to-cylinder-head-gasket-onan-186-6182/

 

[robert248]

Also had a leak here. All my tools are too wide to fit in this area. Any suggestions for tool that is narrow and can fit here?

 

[Light in the Dark]

Loosen the nut on the face of that panel (on the oil pressure sender side) and see if you can push that angled fitting backwards enough to get wrenches in. Only other option is to disconnect/remove the oil pressure sender assembly, loosen and remove that same large nut, and push out of the hole and pull downwards.

Check for fitting cracks, hose leaks, etc. They do fail. Cheap enough to replace either way. https://www.surpluscenter.com/Brand...Hose-Assembly-5800-PSI-NRP-Jones-920-2218.axd

I've had the threaded provision get hairline cracks too.

 

[2Pbfeet]

Also had a leak here. All my tools are too wide to fit in this area. Any suggestions for tool that is narrow and can fit here?

I keep a few common thin (low profile) open end wrenches around for situations like this. However, in addition to @Light in the Dark's great suggestions, there is also unscrewing the swivel flare fitting on the hose to improve the access. Lots of ways to do it...

All the best,

2Pbfeet

 

[Guyfang]

Does anyone know what part number is this gasket?

Do you have a copy of the engine parts TM? Its nice that someone helped you out with the repair kit, but better might have been for you to get used to the TM. It can help you at 03:00, when everyone else is in bed.

 

[Light in the Dark]

Engine -24P calls out the following:

601-20691

PACKING,PREFORMED ,
PART OF KIT PIN 186-6211,
KIT PIN 186-6213

Fuel Pump 'O' Ring Lister Petter LT, LV, TS, TR, TX, LPA, LPW 601-20691

Genuine fuel pump ‘O’ Ring for Lister Petter LT, LV, TS, TR, TX, P600, LPA, LPW, LPWT & LPWS, this ‘O’ Ring is also used for the water pump seal on the LPW Range. Lister Petter part number 601-20691.

www.oldtimerengines.com.au

 

[Guyfang]

Thank you.

 

[robert248]

I went ahead and cleaned it in the sand blaster. Came out looking great.

 

[Ray70]

Make sure you get every last speck of sand out of the thermostat housing and the water passages.
Also might want to change the gasket #12 between the Water pump and the intermediate plate while it's apart.

 

[robert248]

What is your opinion on changing out the gasket by making your own with this stuff?

https://www.amazon.com/Permatex-80628-Sensor-Safe-Silicone-Gasket/dp/B000HBIBZS/ref=asc_df_B000HBIBZS?tag=bingshoppinga-20&linkCode=df0&hvadid=80401840125115&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=m&hvlocint=&hvlocphy=&hvtargid=pla-4584001418940486&psc=1

 

[Light in the Dark]

I personally would only use if the gaskets are not readily available, or in an emergency. Both the water pump gasket as well as pump to manifold gasket should both be readily sourceable.

 

[Ray70]

If you can't get the gasket in time, you can also purchase a 12"x12" square of gasket material from your local auto parts store and cut out your own gasket.
It's actually pretty easy, I've done it many times on other projects.
These days there are many automotive applications that use silicone only and no gasket, but the parts are designed specifically for this, meaning the surfaces are machined flatter and often wider than when a gasket is going to be used.
If you decide to use gasket maker only, apply it to both surfaces, put the parts together but don't tighten the bolts, leave them for 1/2hr. then tighten. This lest the silicone set up a little to help prevent it from being squeezed out.