Stop Bodging You Gaskets!

[Bike Bunker]

Ive seen about 6 of these in the last month now, Gaskets go fix it properly. e.g remove the casing's unscrew the bolts evenly when removing and putting on, remove the old gasket with a scraper or what ever other method just make sure its all gone then use a correct gasket even gasket paper! and add some sealant if you like. Also if your replacing a gasket due to crashing the bike and tearing the casing open, 1. have the casing repaired or 2. REPLACE IT! new or used! don't fill the gaps with sealant


I repaired one today off a bike which had being dropped and engine casing welded mostly.

i repaired today.....

https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-ash3/s720x720/564487_4710215993029_209252667_n.jpg


Thats the old one off and on the floor, as you can see no gasket at all, now it looks like the person has filled it with sealant and as the two have screwed together (Engine+Casing) its pushed the sealant to the outside+ inside creating a good seal, except this one continued to leak from several place's

Notice on the picture above the chuck of gunk by the filler cap (black one)

well that is suposed to look like this

https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-snc6/262328_4710216153033_1514744144_n.jpg

(This one has a used gasket on)



When that gasket was changed its clear on the inside the person used a screwdriver or some sharp tool to separate the casing + engine and must have gone to far and has damaged the inside (scored)

This is why you should not bodge gasket's:

All that white sealant shown here:

https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-ash4/s720x720/248538_4710216473041_1795742428_n.jpg

is loose and much more riding would have pulled it away from the casing and since its on the inside of your engine its not going to go on the floor its going around your engine with your oil!


not only that but when the sealant goes on just because you cant see inside doesn't mean its dry, in fact it might drip on the parts inside the engine:

https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-ash3/564155_4710216753048_1281383950_n.jpg

and some may argue this is no harm and what not, but when i drained the oil out the sump of this bike it stopped coming out after about 4 seconds! i thought thats odd, it was blocked with gasket sealant, and after unblocking it twice with my finger i decided was best to remove the sump and clear it all out.

then you have to pay for who ever to change both sump and engine gaskets. Stupid



Rant over

[_Iain_]

You wouldnt like my bike much
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Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340

[nisp]

I can beat that!!

https://i56.photobucket.com/albums/g164/Blurredman/P1060877.jpg

https://i56.photobucket.com/albums/g164/Blurredman/P1060881.jpg


It caused oil starvation in the top end of my cx and now the cam is a mismatched lump of metal.
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Suzuki TS 50 1999 Honda CB 125 t2 1981 Yamaha XJ 600 s Diversion Honda cx 500 MZ ETZ 250 1985 Yamaha FZR 400 1981 Suzuki TS 185 1984 Triumph bonneville 790 2001 MZ TS250 1979 Suzuki sv 650 1999 KTM exc RFS 450 2007 Hercules mx 125 1976

[Teflon-Mike]

RTV
Really Twattish Vandalism
& The irony is, that a tube of the stuff, used to effect such a botch, is often more expensive than a full gasket set, to do the job more easily, more effectively, and more cheaply.
NOW, been removing a stubborn bolt today...... shall we talk WD40?
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My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[SnowTigeress]

How2 Make a Cornflake Packet Gasket
https://i178.photobucket.com/albums/w269/teflons-torque/071_A_010_Gasket/imag2056.jpg
ok what about this bodge job i did?
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Real bikers build their own Renovated and Riding a 1986 Honda CB125TD-C called the Pup. Full Licence 13/09/2012, 1994 Moto Guzzi 750 Strada
Can-Do Girl that does spanners TOO!
TheSmiler: binning it is better than going around a roundabout the wrong way

[haroman666]

^^^^^ Used a shredded wheat box earlier this week for my engine casing gasket. Seems to have done the trick, and was a bit more fulfilling really; knowing not only did I fit the gasket... I fucking made it too.
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The mistresses: 2000 Honda CBR600f, 2000 Honda VTR1000

[White un]

[CarlosCBR]

[Teflon-Mike]

Yeah, that's wimin for you....
She couldn't get Cornflakes, had to buy Wheetabix, 'cos the shop didn't have any shampoo........
____________________
My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[Alpha-9]

What is a suitable sealant for a rocker cover?

my mate did his timings on his CG, took rocker cover off and put it back on, was leaking badly, got a new set of gaskets, leaking less, but still slightly leaking

Loses compression right?
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Fzr-600 1999

[haroman666]

[P.]

Stop selling your dodgy bikes overpriced like...

[Teflon-Mike]

[dextersaurus]

This time last year i snapped the sump drain plug on the CBR. got a new sump and made my own gasket out of a corn flakes packet.

It's lasted a year of hard riding (), and doesn't show any signs of leaking.

I really hate seeing people using instant gasket. Done properly, you can do a gasket for a couple of quid - and you even get to eat a load of cereal for ENERGY!

Dunc,

[symonh2000]

I norrmally give paper gaskets a light smear of gasket compound. This helps stop them leaking, but also helps them stay in place until everything is tight.

I have used cornflakes packets, gasket paper and proper gaskets and the only ones I have had issues with are the proper gaskets

The gasket compunds I prefer are Blue Hylomar and Red Hermatite, the Red hermatite is better for areas without a paper gasket like between gearbox caskings /crankcases.

I certainly wouldn't use silicone instant gasket on an engine in place of a paper one, that is bodgery.
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Four strokes is two strokes too many.

[Teflon-Mike]

[Qwiktune]

I took this OFF my gpz, someone who likes £1 sausages too much to even waste the box!

https://img835.imageshack.us/img835/9577/imag1696i.jpg
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CBT Passed: 25.05.11, Theory Passed: 12.07.11, MOD1 Passed: 01.04.12, MOD2 Passed: 20.07.12
bikes: Lifan LF125(stolen), Sukida sk125, GPZ 600r, CBR 600F

[69chris]

iv just had to do an emergency repair on my mtx and buggered the clutch cover gasket while i was about it, no cornflakes in the cupboard to rob the box from so i have to Sacrifice an old lp cover,

twas a def leppard album so in hindsight not too much of a sacrifice after all

[SnowyTupwood]

You shouldn't need any extra sealant with a paper gasket, if it's not sealing then there is a problem with the sealing faces or the tightening sequence. As Mike said I do however grease the paper gaskets lightly, this means you can get them off again without ripping them to pieces, the grease has no detrimental effect to sealing, and allows the gasket to breathe into the joints a tad.

Silicone sealant is a pain in the ar*e, it gets everywhere it shouldn't, I've just stripped a very rare 2XT TZR250 motor that the previous owner decided to stick together with a sealant, neatly blocking all the internal gearbox oilways and seizing the gearbox.


I would only ever use genuine OE gaskets on any part that needs a precise clearance, for instance on the two stroke Yamahas that means the head, base and water pump gaskets. The measurements are critical and pattern gaskets are not always so accurate.

The only sealant I'd ever use is 3 bond grey, marketed as Yamabond, Kawabond etc. It's a proper automotive sealant and designed to stick crankcases together, expensive but a tube will last a lifetime! Had some nasty surprises with Hermatite etc. That gets everywhere it shouldn't as well

Nothing wrong with cornflake packet gaskets, give them a smear of oil or grease, just don't use them on anything critical! Made a clutch cover one for the TZR in the paddock at Cadwell out of desperation (think it might have been an Alpinestars boot box ) , did most of a season on it and only changed it because I thought I should!
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RD350LC/YPVS Race Bike and enough bits to start another one! - RD350YPVS Race Bike - TZR250 Race Bike - ZX9R - ZZR1400 project - DRZ400SM - RD400 - TS100 - TY250 - More info @ www.waveracing.co.uk or www.ypmrc.co.uk

[Im-a-Ridah]

Halfrauds sell gasket paper, and most small motor parts stores should have it too.

[bikenut]

:D have you tried the brown paper in the bottom of a banana box, not all are full of holes....... :D

[petrolhead19]

i bought a spare engine for my cbr400 so decided to check it over, took the head off and was obvious the head gasket was blown but the tool tried repairing it with............................wait for it.................................silicone sealer