Cylinder head removal -DR350? - SV650.org

13-06-12, 01:58 PM

Its for my trustworthy Dr350.
During the strip down ive come acropper with the head.

Its stuck fast to the barrel and it wont budge, tried rubber mallet and careful bit of leverage but nout.
Can move the barrel but dont think i can get the whole lot out in one go whilst its still in the frame.
Hints tips or just keep trying to nudge it until it gives way?

Thanks
Brock.

andrewsmith · 13-06-12, 02:04 PM

Get it out the frame.

It'll be easier in the long run

13-06-12, 02:14 PM

mmmm but ive done so well so far, its just the 15 year old gasket has turned into superglue.

flymo · 13-06-12, 02:16 PM

spray some penetrating fluid in there and leave it a while. Then perhaps some careful effort with a sharp flat bladed screwdriver or scraper.

andrewsmith · 13-06-12, 02:16 PM

**** it a bit harder.

Use a nylon mallet if you need to go harder

13-06-12, 02:30 PM

suck it up and just give it one sharp smack, if that doesnt break the gasket then check everything through a million more times because no way should it be bonded like that unless someone did actually use a big ass tube of superglue lol.

13-06-12, 02:45 PM

15 years old though so you never know.
Its been sitting in plus gas for about an hour now so will crack out the heat gun see if i can scrape off any more of the protruding gasket and keep at it with rubber or nylon hammer.
Least the pics should be interesting once i get it off as i feel its got more carbon build up than when the mother does the bbq.

13-06-12, 06:17 PM

If all the head bolts are out, could you try running the engine, and leave it running....the heat and compression might do the trick.

yorkie_chris · 13-06-12, 09:54 PM

Interesting idea!

Probably not good for the camchain though if/when it does lift

14-06-12, 07:46 AM

Quote:

Originally Posted by unclepoo

If all the head bolts are out, could you try running the engine, and leave it running....the heat and compression might do the trick.

Whaaaaat?
the moment the bond breaks you'll wreck the lot

13-06-12, 01:58 PM	#1
BBadger Guest Posts: n/a	Cylinder head removal -DR350? Its for my trustworthy Dr350. During the strip down ive come acropper with the head. Its stuck fast to the barrel and it wont budge, tried rubber mallet and careful bit of leverage but nout. Can move the barrel but dont think i can get the whole lot out in one go whilst its still in the frame. Hints tips or just keep trying to nudge it until it gives way? Thanks Brock.

13-06-12, 02:04 PM	#2
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Cylinder head removal Get it out the frame. It'll be easier in the long run __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

13-06-12, 02:14 PM	#3
BBadger Guest Posts: n/a	Re: Cylinder head removal mmmm but ive done so well so far, its just the 15 year old gasket has turned into superglue.

13-06-12, 02:16 PM	#4
flymo Member Mega Poster Join Date: Jan 2008 Location: North West Posts: 3,124	Re: Cylinder head removal spray some penetrating fluid in there and leave it a while. Then perhaps some careful effort with a sharp flat bladed screwdriver or scraper.

13-06-12, 02:16 PM	#5
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Cylinder head removal **** it a bit harder. Use a nylon mallet if you need to go harder __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

13-06-12, 02:30 PM	#6
Owenski Guest Posts: n/a	Re: Cylinder head removal suck it up and just give it one sharp smack, if that doesnt break the gasket then check everything through a million more times because no way should it be bonded like that unless someone did actually use a big ass tube of superglue lol.

13-06-12, 02:45 PM	#7
BBadger Guest Posts: n/a	Re: Cylinder head removal 15 years old though so you never know. Its been sitting in plus gas for about an hour now so will crack out the heat gun see if i can scrape off any more of the protruding gasket and keep at it with rubber or nylon hammer. Least the pics should be interesting once i get it off as i feel its got more carbon build up than when the mother does the bbq.

13-06-12, 06:17 PM	#8
unclepoo Guest Posts: n/a	Re: Cylinder head removal -DR350? If all the head bolts are out, could you try running the engine, and leave it running....the heat and compression might do the trick.

13-06-12, 09:54 PM	#9
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: Cylinder head removal -DR350? Interesting idea! Probably not good for the camchain though if/when it does lift __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

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