dustydave Posted April 14, 2021 Report Share Posted April 14, 2021 I'm changing the head gasket on my Hayter 449f - it's got a briggs stratton (i think 675 engine). The problem that i've got is that i can't find any engine serial plate and so can't find anyone that will give advice on which gasket will fit it. So far, all of the suppliers have just said that without the serial no. they can't help...and so I've attached an image in the hope that someone in pigeonwatch land might know where to go next. Quote Link to comment Share on other sites More sharing options...
GingerCat Posted April 14, 2021 Report Share Posted April 14, 2021 (edited) Could you make one? Amazon sell blank a4 sheets for a fiver. Use the old as a template. Edited April 14, 2021 by GingerCat Quote Link to comment Share on other sites More sharing options...
oldypigeonpopper Posted April 14, 2021 Report Share Posted April 14, 2021 13 minutes ago, GingerCat said: Could you make one? Amazon sell blank a4 sheets for a fiver. Use the old as a template. Hello, you beat me to posting, this was normal back in the good old days 🤔😁 Quote Link to comment Share on other sites More sharing options...
Mice! Posted April 14, 2021 Report Share Posted April 14, 2021 Just did a google search and they look close, see what you think. Hayter 449f head gasket it brought up several similar looking gaskets, but slow tinter web won't let me load the pic. Quote Link to comment Share on other sites More sharing options...
GingerCat Posted April 14, 2021 Report Share Posted April 14, 2021 48 minutes ago, oldypigeonpopper said: Hello, you beat me to posting, this was normal back in the good old days 🤔😁 I had to do it for something and it was pretty simple, must have been if I did it Quote Link to comment Share on other sites More sharing options...
hodge911 Posted April 14, 2021 Report Share Posted April 14, 2021 I once done one (can't remember what machine it was) I measured the thickness of the old gasket with digital caliper rounded it up to the nearest mm and got some copper plate and used that .... fixed it no problems Quote Link to comment Share on other sites More sharing options...
saddler Posted April 14, 2021 Report Share Posted April 14, 2021 Is there no way to use some of the liquid gasket type stuff, to either repair the old one, or take the place of it? I know that with water cooled engines it used to be common to add "water glass" to the radiator to fix a damaged head gasket without having to remove it Quote Link to comment Share on other sites More sharing options...
amateur Posted April 14, 2021 Report Share Posted April 14, 2021 If you do make one out of thin copper sheet (not difficult), the copper will have work-hardened, so you will need to anneal it by heating it to red hot in a gas flame and plungeing it in cold water before use. Quote Link to comment Share on other sites More sharing options...
oneshot1979 Posted April 14, 2021 Report Share Posted April 14, 2021 Curious as to why it needs replacing? A light smear of Hylomar blue will seal even the hardest working Honda head gasket. If you can jig up the facilities, give the head a lap on a sheet if glass with a bit of valve lapping paste and wd40. Quote Link to comment Share on other sites More sharing options...
billytheghillie Posted April 14, 2021 Report Share Posted April 14, 2021 years ago i watched my mate, hammer out a piece of linoleum with a small hammer and used that. Quote Link to comment Share on other sites More sharing options...
enfieldspares Posted April 14, 2021 Report Share Posted April 14, 2021 1 hour ago, oldypigeonpopper said: Hello, you beat me to posting, this was normal back in the good old days 🤔😁 What he says. Quote Link to comment Share on other sites More sharing options...
eggy74 Posted April 14, 2021 Report Share Posted April 14, 2021 ive used cardboard before (cornflakes box) on a water cooled two stroke, was good enough to get me home. 😆 Quote Link to comment Share on other sites More sharing options...
lister1 Posted April 14, 2021 Report Share Posted April 14, 2021 Look on the engine cowling, there should be three rows of numbers stamped in. That will be in the engine numbers. It’s usually just stamped in the tin work. Look on the link, shows typical locations. https://www.lawnmowerpros.com/diy/index.php/how-to-find-briggs-and-stratton-model-number/ Quote Link to comment Share on other sites More sharing options...
Wymondley Posted April 14, 2021 Report Share Posted April 14, 2021 I use https://www.briggsandstrattonparts.co.uk/ for Briggs bits. Lots of information on the web site on identifying your engine. They are also very helpful via email/phone. Quote Link to comment Share on other sites More sharing options...
dustydave Posted April 15, 2021 Author Report Share Posted April 15, 2021 Many thanks for your help - given me plenty of options to look at Quote Link to comment Share on other sites More sharing options...
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