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Author Topic: Lifan 150cc big-bore kit: Installation  (Read 39045 times)

Offline Sunrise4567

  • Posts: 21
Re: Lifan 150cc big-bore kit: Installation
« Reply #30 on: Mar 03, 2014, 01:07:34 »
Great news that the fault is mine and not the bike!!!  Thanks for the photo, it was just what I was thinking about.

Pretty dumb mistake on my part.....I will let you know how I go when I do it tomorrow.  Might have to make a new gasket for the bottom of the cylinder or is it safe to do it the way suggested with a smear of silicon sealer and no gasket?  I have  high quality 220 c silicon sealer is this ok?

Cameron

Offline stroker crazy

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Re: Lifan 150cc big-bore kit: Installation
« Reply #31 on: Mar 03, 2014, 01:19:52 »
Mine runs fine without a gasket.

Be ultra-careful with the sealer.  Use an absolute minimum, and wipe clear for about 2mm around the edges.

It's nasty stuff in the wrong places!

Crazy
“Ride like the Wind” W.H.

Offline Sunrise4567

  • Posts: 21
Re: Lifan 150cc big-bore kit: Installation
« Reply #32 on: Mar 03, 2014, 04:08:41 »
Update..... this afternoon I removed the head and cylinder to rectify the incorrectly placed thrust washer.  When I turned the cylinder over to drift the locating pin out I couldn't see the washer.  All sorts of thoughts ran through my mind like did it fall out of my hands when i was putting it back together? Did I put it in then take it off because I wasn't sure where it should go,  then leave it out all together by mistake?  It all became clear when I drained and strained the oil...... Feeling a bit sick at the moment with the thought of my extreme incompetence.

Where to from here?  Does everthing need to come apart now?

As usual any information is greatly appreciated.   

Offline stroker crazy

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Re: Lifan 150cc big-bore kit: Installation
« Reply #33 on: Mar 03, 2014, 04:30:55 »
Does everthing need to come apart now?

Drain the oil and see if anything else falls out; but I would think that a tear-down is advisable.

Fortunately it is about as simple as a four-stroke motor can get.

Crazy
“Ride like the Wind” W.H.

Offline Bojer

  • Posts: 109
Re: Lifan 150cc big-bore kit: Installation
« Reply #34 on: Mar 03, 2014, 04:44:55 »
I'd try just pouring some more oil in through the crankcase mouth and see if you can flush the rest out .

If that doesn't work might be worth 5 minutes with one of those telescopic magnets poking around - just a chance.

If you cannot account for it all it will need a motor strip as you don't want bits like that floating around - good luck with it .

Offline Sunrise4567

  • Posts: 21
Re: Lifan 150cc big-bore kit: Installation
« Reply #35 on: Mar 03, 2014, 05:19:36 »
Good advice I will give it a try before embarking on the monumental for me, task of striping the engine

Offline sprocket2cog

  • Posts: 470
Re: Lifan 150cc big-bore kit: Installation
« Reply #36 on: Mar 03, 2014, 06:28:59 »
its all about the cornering

My Ace
http://www.dotheton.com/forum/index.php?topic=45949

Offline stroker crazy

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Re: Lifan 150cc big-bore kit: Installation
« Reply #37 on: Mar 04, 2014, 04:47:49 »
I will give it a try

If you need to dismantle the motor post here before you start.

I'm sure the DTT 'Ace' crew can provide all the assistance and advice necessary to get a successful result.

Crazy
“Ride like the Wind” W.H.

Offline Sunrise4567

  • Posts: 21
Re: Lifan 150cc big-bore kit: Installation
« Reply #38 on: Mar 04, 2014, 16:43:11 »
Removed motor yesterday and all bolts around the centre of the crankcase, but when trying to seperate the two halves I could easily get around a 3-4mm gap but that is about it without forcing anything.  (Also removed the clutch side cover and inspected for any of the broken washer, but nothing in that side.)

Is there something else that needs to be removed before the two halves can be seperated for inspection purposes?


Offline stroker crazy

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Re: Lifan 150cc big-bore kit: Installation
« Reply #39 on: Mar 04, 2014, 17:53:50 »
Is there something else that needs to be removed before the two halves can be seperated for inspection purposes?

It's a bit difficult to diagnose from this distance with no photos!

You have the clutch assembly and gear change shaft removed I suppose. Does the resistance seem to be coming from a particular position?

Crazy
“Ride like the Wind” W.H.