Club G40 Forum

Technical => Engine and Transmission => Topic started by: AlexG40 on June 23, 2012, 07:39:41 PM

Title: Engine building
Post by: AlexG40 on June 23, 2012, 07:39:41 PM
I'm going to be building up my engine from scratch pretty soon. I'll be using the Haynes as a guide (it's not let me down before) but I wondered if anyone has any hints and tips before I start. I've got the tools and plenty of clean workspace but anything else I should be looking at?  I'll probably document the build as I do it and it may make a decent FAQ article when it's done. (It will also mean if I miss anything one of you might spot it!)

Cheers

Alex
Title: Re: Engine building
Post by: Yoof on June 24, 2012, 01:16:17 PM
List of some helpful tools/bits:

Clean Rags
Fresh engine oil in a small squirter
Plastigauge
Feeler gauges
DTI & base
Good block scraper
Pipe cleaners/brushes to remove debris
Torque Wrench
Paint pens/ stamps for marking bolts when tight
Gasket sealant
Long splined head bolt tool

Just have a good read of Haynes and set aside a few hours, building them isn't hard just be methodical, and don't force anything, if it feels wrong, it generally is.

Yoof
Title: Re: Engine building
Post by: randombadger69 on June 24, 2012, 04:23:31 PM
Use sealant on your sump gasket. I didn't and its leaking! Grr >:(
Title: Re: Engine building
Post by: AlexG40 on June 24, 2012, 07:49:24 PM
Cheers for that. Got all that covered except the DTI.

Hit my first snag today. There's something stopping the rods on 3 of the piston assembly's from having full movement. I'm not 100% sure why as theyve been used together before with no issue that I knew of although the engine wasn't actually run.

(http://i1263.photobucket.com/albums/ii640/Juggmeister/604016fe.jpg)

Looking at the pistons it appears there's a small lug that seems to be fouling the top of the rods.

(http://i1263.photobucket.com/albums/ii640/Juggmeister/5bd91d4f.jpg)

Have I missed something or is this a minor fault with the pistons that I need to address?
Title: Re: Engine building
Post by: Yoof on June 24, 2012, 08:55:13 PM
Finger belt sander is your friend, make sure everything's clean afterwards.

They all stamped with 'EX' ?
Title: Re: Engine building
Post by: Robin on June 24, 2012, 09:29:27 PM
Its worth running a tap down the head bolt threads on the block as well Alex to make sure there is no crap down there and the thread are all nice.
Title: Re: Engine building
Post by: AlexG40 on June 24, 2012, 10:02:31 PM
Quote from: Yoof on June 24, 2012, 08:55:13 PM
They all stamped with 'EX' ?

I'm back in the house now, but as far as I can remember they are.
Title: Re: Engine building
Post by: Fred on June 25, 2012, 10:20:28 AM
Head bolt thread.

Am i correct by saying Metric Fine 10 x 1mm pitch ?

Fred.
Title: Re: Engine building
Post by: AlexG40 on June 25, 2012, 11:58:38 AM
^ Sounds right. I'll check when I get to the garage.
Title: Re: Engine building
Post by: jez1272gt on August 16, 2012, 12:07:13 PM
be carefull when using a tap to clean the thread, should really use a thread chaser but it will be ok if your gentle/careful. Make sure you get all the crap out of the bottom after too  ;)!