Jump to content

Herald 67 1200 gearbox/engine


Recommended Posts

Hi to all just finishing bodywork /welding,my gearbox/engine has been sat in corner for some time,i really dont know there condition but would like someone to inspect them and advise [happy to pay] it seems names  in previous threads that could do this involves me travelling miles,does any one know or recommend anyone in the Bristol /somerset area that could help? Regards Neil

Link to comment
Share on other sites

Can't recommend anybody as I am not local. But checking over would really require a full strip down and rebuild, which is likely to not be needed. 

The engine can have a basic check by yourself quite easily. First I would take all plugs out squirt some oil in each bore and leave for a day or two. You will need to bolt the starter motor up, and have a compression tester handy. 

Spin the engine on the starter motor (beware, oil will probably splat out the plug holes, so a heavy cloth over the engine helps) Then in turn test teh compression for each cylinder, they should all be close in value. 

Next, drain the oil out the sump, pop the sump off, and have a look at all the bearings. See if there are any that are bad, or the crank is scored up. If just some signs of wear, a ndew set of bearings can be fitted. Check for endfloat on the crank too, a smidge is OK, 2mm is not, but if the thrust bearings are still in place new ones usually take out all the wear. 

That is really as far as you can go without a rebuild.

Gearbox, give the input shaft a waggle. If it really has a lot of play, it is an indicator that the mainshaft tip/bearings and/or front bearing are badly worn. Next, pop the top cover off and have a look. Rotate all the gears looking for broken teeth etc. Next step is a strip if you want to gio that far to inspect all the bearings and surfaces, but you are getting into serious cash again and it may not be needed. 

The only real test of these components is to try them. If they are bad once fitted (do drive it before refitting all the interior etc, and you can run the engine sat in a tyre or a DIY frame if you are adverntorous) then have them rebuilt. Otherwise save the cash.


Link to comment
Share on other sites

If all the checks Clive recommends are ok I would suggest changing the front and rear oil seals on both engine and gearbox (also provides a chance to check cam chain and tensioner) as these are very cheap and easy to do while its out of the car...

Link to comment
Share on other sites

Before spinning it on the starter, try and turn it over by hand using a large spanner/socket or adjustable on the crank pulley bolt… if the oil in the bearings has deteriorated this will help prevent any damage

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...