Si2 Posted April 15, 2010 Share Posted April 15, 2010 It's my birthday tomorow, so I've booked a day off work to pull the lump from my GAZ. It's had a stuck exhaust valve for at least three years now... So the engine is coming out and the block is going to a friendly local machinist to have the offending valve beaten, ground, EDM'd or what ever it requires to get it out. Then he's going to run me up a new valve guide and the whole thing is going to go back together again over the course fo the summer... With the current aim of driving to Beltring. So I've got the bacon in for the sarnies and plenty of tea bags, first task is to get the engine out and on the engine stand and then it's strip down time. I hope the weather is kind..:-D Wish me luck!! Best regards Si Quote Link to comment Share on other sites More sharing options...
paulob1 Posted April 15, 2010 Share Posted April 15, 2010 not a difficult job, but good luck anyway...have fun Quote Link to comment Share on other sites More sharing options...
LoggyDriver Posted April 17, 2010 Share Posted April 17, 2010 Plenty of pictures would be nice if you have the time???:cool2: Quote Link to comment Share on other sites More sharing options...
Si2 Posted April 19, 2010 Author Share Posted April 19, 2010 I got the engine out and to the machinists. We hauled it up on the mill bed and managed to drill out the valve, but we damaged the valve guide in the process. So I decided to strip the engine down completely so i can get the block to an engine specialist to fit a new valve guide. When the sump came off there were a number of large lumps of ally in there. One of the pistons has lost most of it's skirt. So there's more work to be done! I did take a few pics, i'll post them up later. Engine out was a reasonably straight forward process, there's plenty of room in the GAZ, especially with the bonnet, wheel arch and side panels removed. So now it's strip down, repair and rebuild time. In the process i found the timing marks as well! There's a tlittle window on the bell housing that allows you to look in and across a small spike to see the TDC marks and associated timing marks.. If anyones interested I'll post pics of the strip down and rebuild. Si Quote Link to comment Share on other sites More sharing options...
abn deuce Posted April 19, 2010 Share Posted April 19, 2010 I ve not seen the workings under the hood of a GAZ so please post away . Quote Link to comment Share on other sites More sharing options...
Willyslancs Posted April 19, 2010 Share Posted April 19, 2010 id like to see pics too please ......:-) Quote Link to comment Share on other sites More sharing options...
Tony B Posted April 20, 2010 Share Posted April 20, 2010 One thing about Russian kit. Built to be fixed with one spanner and a large hammer. Quote Link to comment Share on other sites More sharing options...
Si2 Posted April 20, 2010 Author Share Posted April 20, 2010 I have to admit, we did use a big hammer - one each... Si Quote Link to comment Share on other sites More sharing options...
paulob1 Posted April 25, 2010 Share Posted April 25, 2010 i will be off to poland and other parts in the coming weeks if you need any parts let me know,. Which engine do you have in her...mine has the polish ZUK engine, very similar but a bit more reliable Quote Link to comment Share on other sites More sharing options...
Eastblock Posted April 25, 2010 Share Posted April 25, 2010 I have a Zuk engine as well. They have app. 10hp more than the SV engine. The 2.1L Zuk engine is actually a development of the M-20 SV engine and they bolt straight onto the existing gearbox. Quote Link to comment Share on other sites More sharing options...
paulob1 Posted April 25, 2010 Share Posted April 25, 2010 tis true...and parts more available and she is a bit more reliable Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 10, 2010 Author Share Posted May 10, 2010 I have the original 2.4L sidevalve engine. It's got 88mm pistons. I tried to post some pics here but ran in to a few issues. Let me try again.. That's the broken piston... Si Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 10, 2010 Author Share Posted May 10, 2010 Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 10, 2010 Author Share Posted May 10, 2010 Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 10, 2010 Author Share Posted May 10, 2010 Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 10, 2010 Author Share Posted May 10, 2010 Quote Link to comment Share on other sites More sharing options...
Eastblock Posted May 10, 2010 Share Posted May 10, 2010 Are you going to rebuild the engine or get something different? I may be able to help get a Zuk engine back from Poland as I'm going over there a couple of times in May. Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 10, 2010 Author Share Posted May 10, 2010 I'm going for a rebuild. I'm quite keen to keep it as original as I can, it's part fo the charm for me. I have valve guides and new valves now, just scouting around for a piston. SO if you can find an 88mm piston then I'd be grateful. My workpal has a Polish wife, they go over quite often, so I've given them the same request for the next trip! regards Si Quote Link to comment Share on other sites More sharing options...
iannima Posted May 10, 2010 Share Posted May 10, 2010 Do you only need one? http://www.ural-hamburg.de/kolben-8800mm-gaz69-p-1911.html same as it was? Or are you re-boring the cylinders? Oversized pistons did exist. They go in 0.5 mm. steps: 88.5; 89 and 89.5. Best option is as always to ask Todor in Bulgaria: http://www.russianspares.com/catalog/product_info.php?cPath=26_32&products_id=378 Quote Link to comment Share on other sites More sharing options...
paulob1 Posted May 10, 2010 Share Posted May 10, 2010 Todor is very helpful quick and not too expensive... Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 11, 2010 Author Share Posted May 11, 2010 I got my valve guides from Russian spares. Very quick service and great prices. I wasn't looking to do a rebore, as the engine only has 20k km on it and looks in good shape. SI Quote Link to comment Share on other sites More sharing options...
iannima Posted May 11, 2010 Share Posted May 11, 2010 In that case the Hamburg one might be just the thing for you, as it is a single one and not the full set of four. It is a touch more expensive than Todor but there it is. Unless you can find it in the UK or Poland that is. All the best of luck! Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 12, 2010 Author Share Posted May 12, 2010 I'm trying to order the single piston now... Cam shaft comes out this weekend. I know one of the followers is rough on the top surface but I am hoping to be able to just grind it flat again and take up the slack with the tappet. I've no idea how I'm going to fit all those bits back in again! Anyone have any idea on the torque values for big ends and crank bushes?? Si Quote Link to comment Share on other sites More sharing options...
Si2 Posted May 12, 2010 Author Share Posted May 12, 2010 I made an equiry on the piston in Germany. It's anopther €22 euros to post it and they only take bank transfer which would cost me another £9.50. So I'm fishing in Poland again! Si Quote Link to comment Share on other sites More sharing options...
iannima Posted May 12, 2010 Share Posted May 12, 2010 Would this help? I believe you need the second line. Quote Link to comment Share on other sites More sharing options...
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