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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> 'Orrible jobs! Removing damaged gaskets.
Post Info TOPIC: 'Orrible jobs! Removing damaged gaskets.
TTRfan


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'Orrible jobs! Removing damaged gaskets.
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Just rebuilding the engine on a TTR that I am building for my brother-in-law who fancies doing a bit of green laning.

Is there a worse job than cleaning off the old base gasket confuse

This one had been in place since new I reckon and was well bonded to the head. It took me an hour to get it off cry

The best tool I used wasn't my expensive gasket scraper but some Stanley knife blades. Have to be careful as they will shave the aluminium as well if you aren't careful. Also, I know wear stout rubber gloves to do the job - don't ask why disbelief

Never mind that bits done and the barrel cleaned up ready for fitting tomorrow!

Brian



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uteman


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RE: What a horrible job!
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Try some gasket remover if you get such a job again but be careful of paint as it a great paint stripper



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TTRfan


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uteman wrote:

Try some gasket remover if you get such a job again but be careful of paint as it a great paint stripper

 I use gasket remover towards the end of the process to try and soften up what's left of the gasket and help prevent damaging the barrel surface but, on the whole, it is pretty much ineffective on the TTR base gasket - just makes it very messy no



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kitkat


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Gasket removal tips?
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Hi,

Any tips on best way to remove old gasket from engine casing. What started as a simple oil leak fix is turning into a bit of a marathon.  Not keen on using razor blades as too easy to dig the aluminium but any ideas welcome as the old gasket not giving up without a fight!

Thanks

Dave

IMG_20140929_200736699.jpg



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TTRfan


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Hi Dave

The generator cover gasket is a difficult one to remove - possibly harder that the cylinder base gasket no

It is made worse by the fact that the casing is quite thin where the gasket sits and it could be quite easy to unintentionally damage the surface. That said, I have done a few successfully using a good Stanley blade. TIP - wear gloves that are thick enough to protect your pinkies in case of slippage!

You could try softening the old gasket up with some gasket removal spray but I haven't had great success with that in the past.

What have other owners used I wonder?

Brian

 



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Cubber


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Not that I've had to remove many on my TTR but on my Triumph and BSA I use a special tool called PATIENCE. hmm

Gentle scraping with a broad screwdriver, table knife, or such - taking slivers and layers one piece at a time.

Using modern RTV gasket sealants I find gives better results than the old Red Hermetite goo.

Martyn

 



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hanzo


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I used an old butter knife with a nice rounded end then cleaned the face with white spirits and some very fine wet and dry paper but as cubber said patience is the best tool so as not to leave any score marks and keep any tool you use at a nice shallow angle almost flat to the surface of the casing

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kitkat


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Thanks for all the tips chaps.  3 hours later and it is now all off.  Combination of soaking with GT85 (seemed a reasonable idea at the time) and a blunt putty knife did the trick. Needs a final clean up then I can get back to fixing the original problem.

Dave



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TTRfan


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'Orrible jobs! Removing damaged gaskets.
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My heart sinks when removing engine side covers if the gasket needs replacing no

It happened tonight with a generator cover I was fitting.

I use a Stanley knife blade to cut/scrape the old gasket off. If anyone has a better system please let me know! Gasket remover doesn't touch it.

DSCF7448.JPG

 

40 minutes later no

As I say - one of my least favourite jobs....

DSCF7449.JPG



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66T


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RE: 'Orrible jobs!
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I'd really like to know the answer to this question, too! So far, I'm stuck with the Stanley knife method as above.

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petenz


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i use a realy realy realy sharp chissal..

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locky


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Not one of my favourite jobs either. I use one of these www.ebay.co.uk/itm/PERSONNA-GENUINE-RAZOR-SINGLE-BLADES-BOX-100-PLUS-FREE-METAL-PERSONNA-SCRAPER-/400508687353



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Clutha


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http://tinyurl.com/qjpwhgq

 

Got me one of these recently. Bit safer than a bare blade.



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