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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> motor rebuild: lubricants question ?
Post Info TOPIC: motor rebuild: lubricants question ?
sena


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motor rebuild: lubricants question ?
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    Hello everyone here.

The spare parts I ordered should arrive by Tuesday. I was re-reading the service manual and come across LUBRICATION question during motor rebuild:

On some points it is advised to use "Molybdenum Disulfide Oil" , on others "Lithium Soap grease".

Some motor parts like valves scare me: I don't want them to seize and be hit by piston like it happened on my cheapo chin-chang bike.

I shortly searched in car spares shops, but could find only some general purpose stuff ...

No M oil spotted, no M grease. Is there a replacement in case I don't find them?

for LS grease, should I use "White lithium grease in pressurized can (made by WD40) http://www.wd40specialist.com/products/white-lithium-grease/ " or Lithium-Calcium yellow grease from TOTAL gas station MULTIS 2 ? http://www.kernow-oils.co.uk/shop-by-brand/total/marine/total-multis-2-multi-purpose-lithium-calcium-grease-140121/c-140121/

In a shop selling Yacco products I found a green color grease advertised for jet ski / marine. Is it of any use on a TTR ?

How can I search for, and get the right lubricants for Motor Rebuild ?(here a customer is supposed to know what he searches for and, if not available, find himself a suitable replacement) confuse

Same question for LOCTITE replacement: I managed to find some said-to-be equivalents from another brand, but they all have different specs. I don't know the strenght of the Original Loctite specified in the manual. What should I look for, in Nm ?

- All tips and advices are wellcome. Remember: I start mechanics only now, without any background. Before joining the forum I was good only in computers. yawn 



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dern


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What do you need the lithium soap stuff for?

Moly is just the black CV joint grease you get from all motorfactors.

Regards,

Mark



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TTRfan


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I use Fuchs/Silkolene Renolit EP2 lithium-based general purpose grease for just about everything that doesn't need rubber grease.

Their range of MP greases use "Lithium Soap" as a thickener if that is essential.

"RENOLIT MO 2 is a multi purpose lubricating grease. It is a high quality lithium base grease fortified by molybdenum disulphide and other additives."

Their website here contains some technical information.

What grease(s) do other owners use on their TTRs?

 



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Lin


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There are motor rebuild assembly lubricants available, many containing MoS2. They usually come in a tube or spray can. Check your local auto parts retailer.

The parts that most need initial lubrication on first start-up are the rings, piston skirts and the cam lobes. The piston and rings move very rapidly rubbing up against a new freshly honed bore, in order to prevent micro welding and scuffing a lubricant high in anti-friction properties is desirable. Cam lobes are the last-in-line to see engine oil on initial start-up and need an assembly lubricant until the engine oil reaches them.

Don't go overboard with assembly lubes containing MoS2. It is a serious anti-friction additive and too much of it circulating in the engine oil could just possibly affect the clutch.

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TTRfan


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Excellent points Lin!

I have a mix of ordinary engine oil mixed approx. 50/50 with an STP-type oil treatment. I keep this in a bottle with a paint brush and use it to paint cam journals, cams, bores, and pistons when doing an engine rebuild. The oil may seep away but the oil treatment is a lot thicker and hangs around for much longer. Ideally you want to be starting an engine fairly soon after a rebuild.

On the TTR250, please use the oil bleed bolt on the front right of the engine to make sure you have oil pressure BEFORE starting the engine smile

Brian

Oil check bolt.jpg



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petenz


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Honda moly paste....
put it on bearing surfaces etc..... it will protect/lube them till you have oil pressure..


www.ebay.com/itm/Genuine-Pro-Honda-Moly-60-Paste-New-in-Package-08734-0001-/370942179628

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sena


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thanks. Now with all this info I'll check what can match from local dealers.



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