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> Engine tear down, Engine help
simonjb
post Mar 26 2020, 07:00 PM
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So I decided to clean up my original engine while I run the car with a modified scat engine.

When I drained the oil I found these....two small pieces and the nut.....(dime for size). So I started to tear down the top end and found one cylinder that looked not so good. The others are the same as the right side. went down further and removed the pistons and am now cleaning them all up. Everything looks ok. I really don’t want to split the case or go any further and from what I see inside all look good. So two questions....

1) any thought on why this cylinder isn’t firing right ?

2) can I use something like gasoline or similar to flush and clean out the inside of the case with the crank and oil pump etc still attached?

3) any reason why I can’t use all the old parts ?

4) any thought on the nut?

Thanks....
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simonjb
post May 31 2020, 05:42 PM
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So I am now starting the rebuild after the tear down, cleaning, new parts, testing, etc....One question, I am putting in new barrels, pistons and cam, pins, bearings etc, but keeping the original crank which was tested and is in good shape. In addition, all 4 crank rods checked out. However, I assume I should replace the 4 round bushings at the small end of the rods. From what I have read, this isn't a do-it-yourself home job, but instead should be done by local machine shop. Am I correct?


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porschetub
post May 31 2020, 09:11 PM
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QUOTE(simonjb @ Jun 1 2020, 11:42 AM) *

So I am now starting the rebuild after the tear down, cleaning, new parts, testing, etc....One question, I am putting in new barrels, pistons and cam, pins, bearings etc, but keeping the original crank which was tested and is in good shape. In addition, all 4 crank rods checked out. However, I assume I should replace the 4 round bushings at the small end of the rods. From what I have read, this isn't a do-it-yourself home job, but instead should be done by local machine shop. Am I correct?


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Yep not DIY,I have found these stand up fairly well but with piston pins worn on cold start you hear a noise like ticking it soon go's away after the engine warms up.
The new lubed piston pins should be a firm push to pass through the rods.
Best to replace,EMW have speced rebushed rods for a great price ,last time I checked it was $55 for 4...excellent value from a good shop and most likely cheaper than the small end bushes to fit and ream somewhere else.
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Posts in this topic
simonjb   Engine tear down   Mar 26 2020, 07:00 PM
Tbrown4x4   Why did you pull the engine? How long did it sit? ...   Mar 26 2020, 07:28 PM
jmalone   Tear it down. Several obvious problems and likely...   Mar 26 2020, 08:03 PM
porschetub   Water has entered the motor so you need a top over...   Mar 26 2020, 08:54 PM
Cairo94507   That nut looks like it is a recent addition to the...   Mar 27 2020, 04:01 PM
simonjb   Thanks all...so I will take the advice and tear it...   Mar 27 2020, 04:10 PM
Tdskip   Piston/jug sets are pretty cheap, not sure the tim...   Mar 27 2020, 06:24 PM
mepstein   Piston/jug sets are pretty cheap, not sure the ti...   Mar 27 2020, 06:54 PM
simonjb   So I'm now in full tear down mode. This is wha...   Apr 5 2020, 03:37 PM
Superhawk996   Abosolutely replace it. That engine has seen some ...   Apr 5 2020, 06:12 PM
simonjb   Any ideas on where to find new camshafts?   Apr 7 2020, 06:42 AM
Tbrown4x4   Webb Cam, CP1, LNengineering, air-cooled.net...…...   Apr 7 2020, 06:56 AM
Superhawk996   @ simonjb Don't take this the wrong way, I ha...   Apr 7 2020, 07:16 AM
BeatNavy   ^^ All good points. I'd add the Wilson book a...   Apr 7 2020, 07:23 AM
Superhawk996   ^^ All good points. I'd add the Wilson book ...   Apr 7 2020, 07:29 AM
simonjb   Thanks all. I have the book and the Raby DVD numbe...   Apr 10 2020, 08:00 PM
simonjb   anyone?   Apr 12 2020, 09:47 AM
Superhawk996   anyone? @simonjb If you're staying with ...   Apr 12 2020, 10:16 AM
BeatNavy   I kind of think that's the way they are all so...   Apr 12 2020, 10:17 AM
simonjb   Thanks guys. Replace both it is....   Apr 12 2020, 10:56 AM
BeatNavy   Also, when you do assemble and install the cam, pa...   Apr 12 2020, 11:12 AM
simonjb   So I am now starting the rebuild after the tear do...   May 31 2020, 05:42 PM
porschetub   So I am now starting the rebuild after the tear d...   May 31 2020, 09:11 PM
Mark Henry   Ohhh man...that engine stand is a recipe for disas...   May 31 2020, 06:14 PM
simonjb   Ohhh man...that engine stand is a recipe for disa...   May 31 2020, 06:59 PM
cuddy_k   Have you had the case checked and / or decked? 50 ...   May 31 2020, 11:03 PM


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