Welding the engine.

[rimaarts]

Probably a stupid question, but still. I noticed that where the exhaust pipe goes into the engine, I have a crack in the engine. And it's leaking gasses. Since I'm about to sell the bike in couple months, I would prefer to spend as little as possible fixing it. Could someone suggest a nice welder in London?

I assume that engine gets waaay too hot to use JB weld?

[Jazoli]

A picture would save a thousand words

[rimaarts]

It's dark and I have just my phone so that's the best I could get!

[curlie467]

Oh heck.

[cmaguire]

Run it down to a decent MIG or TIG welder and ask them whether they can build it up so it can be re-tapped in situ.
As its aluminium (lower temps than steel) you might have a chance of using a brazing rod and MAPP gas to repair it yourself but go see the 'expert' first.
Daft bodges with JB Weld just shaft the next owner so I wouldn't do it.

[Jazoli]

curlie467 said:

Oh heck.

Indeed, that's a pisser, what bike is it?

[rimaarts]

Written off back in September a cbr125rw7... Already spent around 150£ to put back on road... Bike is worth maybe 800? 900£? So spending a fortune to repair isn't worth it..


Anyone can recommend a welder in London?

Edited by rimaarts on Saturday 25th February 22:07

[cmaguire]

If a welder can build it up in situ for you to drill/tap (which is no big deal) then it's an hour job.
£50 ish

[podman]

Straight forward enough repair for a pro but from my expierence. you will find they will want the engine out to do the job.

[rimaarts]

I was afraid it'll be engine out... I've never taken the engine out... Lol if I brave myself to do it, I can just as well keep the bike and use it as a guinea pig to learn some more mechanically before messing with my big bike...

Edited by rimaarts on Sunday 26th February 00:22

[10penceparalyzed]

Getting that repaired will be engine out, job as getting in there to clean it up and weld it would be a real PITA, I assume its a alloy head? for the amount of hassle you would be better getting another head /piston and swapping it over. although I have no doubt it'll be bodged together and some mug will buy a lemon.

[Jazoli]

rimaarts said:

I was afraid it'll be engine out... I've never taken the engine out... Lol if I brave myself to do it, I can just as well keep the bike and use it as a guinea pig to learn some more mechanically before messing with my big bike...

Edited by rimaarts on Sunday 26th February 00:22

You have one of the simplest bikes to learn on anyway, its fairly straightforward, put all the nuts and bolts from parts you remove into a separate freezer bag and write where they are from and what they are on them and label every wire you disconnect with a bit of masking tape and a marker pen, should take a novice a few hours, just take your time and work methodically.

Or just bodge it up with a bit of chemical metal and sell it for a hundred quid cheaper than other similar bikes on gumtree, you wouldn't be the first to do this.

Edited by Jazoli on Sunday 26th February 11:00

[CoolHands]

I wouldn't bother just sell as is and mention it in the advert. Let some other sucker sort it out.

[rimaarts]

Yeah I understand it's a simple engine, but messing with engine, and electronics on modern bikes would be the 2 jobs I'd be ready to pay the garage... To make matters more fun... Bike is parked on the street, so if I start a job I have to finish in a day. I guess I'll just sell it off. How much do you think I can ask? 500? 600? Scuffed bodywork, shocks not In the best condition, and right side panel one side is held on with ducktape?

[wildone63]

If the cylinder head is removable with the engine in situ it may be the quickest and cheapest option to replace the head,theres a few on ebay right now.

[Wedg1e]

wildone63 said:

If the cylinder head is removable with the engine in situ it may be the quickest and cheapest option to replace the head,theres a few on ebay right now.

Agreed, but then you're into head gasket, bolt torque and cam timing territory, which may not be ideal for a novice with minimal tools/ experience. Granted he'll soon GET the experience but still...