Sign in | Register | My account |

Spark plug blows out of TL 3.2L Engine - likelihood that engine can be repaired?

Egolsen_55
0

Asked by Egolsen_55 Aug 23, 2012 at 08:58 PM about the 2005 Acura TL 6-Spd MT

Question type: Maintenance & Repair

Spark plug "departed the engine" during moderate acceleration, hitting cooling fan and radiator before
dropping onto interstate highway.   First inspection shows that engine threads removed with departed
plug.  Is this common?   Can anyone adequately inspect the engine head to assess damage?   Is there any
confidence that other spark plugs will not "depart the engine"?

3 Answers

Andrew Olsen
4,825

Sometimes improperly torqued plugs can do this. I'm not sure how to correctly repair this. First just try to recover the threads with the same size thread tap. I know ways to be creative but it may not be the right way. Either heli-coil it (may just blow out) or find a slightly bigger spark plug and tap the hole out with the bigger size (without extreme care in selecting the right plug may not work right). I'm not sure if this engine uses aluminum heads, the wrong type of plug can cause aluminum to corrode. Aluminum doesnt like most other metals to contact it. Worst case is you need a new head.

2 out of 2 people think this is helpful.
geepurs
115

I am guessing you are near 100k miles after 7 years. You can try some of what is mentioned above but you need to be sure no bits of threads fall into the motor. Most likely you need a new head. If it has to be removed to be repaired, replace it. Aluminum head repairs can be cosly and may not last long. Were the spark plugs ever replaced at 100K or sooner? If so that spark plug may have been over tightened or even cross threaded. Likely the engine would have run a little rough when cold. If the head is coming off you might consider doing the timing belt at the same time. A lot has to get removed to redo the head and adding the timing belt should be lower cost If you can find a good Acura repair shop, you should be able to save a lot of coin. I would only do the extra belt work if you plan on keeping the car another 2-3 years and have the head replaced to pay for it.

1 out of 1 people think this is helpful.
Frank Brenneman
245

An experienced mechanic should be able to use a heli coil and I've never had a plug blow out after using them. I even used a heli coil on an aluminum head without the heads removal. Involved vacumn cleaner and open exhaust valve to remove shavings.

1 out of 1 people think this is helpful.

Your Answer

Related Questions

  • TL engine Replacement 1 answer

    This is a 1996 TL 2.5

    1996 Acura TL

    -

    Maintenance & Repair

  • Spark plug shot out. 3 answers

    Driving down the road there was a loud bang. My first thought was we snapped a belt. Pull off to the side if the road and the plug was sitting there on the engine like nothing happened. The plug i...

    1996 Acura TL 2.5 Sedan

    -

    Maintenance & Repair

  • Tl Engine Replacemant 1 answer

    I have a TL which engine overheated, (electric fan broke off and puctured the radiator while my wife was heading to savannah from chatanooga) I am looking to replace the engine but was wondering would...

    1996 Acura TL 2.5 Sedan

    -

    Maintenance & Repair

  • timing belt acura tl 2005 3 answers

    acura dealer is telling me timing belts need to be replaced. i have 7500 miles tl 2005. Is it to soon?

    2005 Acura TL

    -

    Maintenance & Repair

  • How do I change the engine in my '97 Acura TL 2.5?

    Through a rod in my 1997 Acura 2.5 TL, therefore I need to remove the old engine and install the new engine. My problem appears to be that I may need to remove the transmission in order to get to the ...

    1997 Acura TL 2.5 Sedan

    -

    Maintenance & Repair

TL
Looking for a Used TL in your area?
CarGurus has 9,281 nationwide TL listings starting at $3,199.
ZIP:

Search Acura TL Questions

Acura TL Experts

#1 miraclemike
miraclemike
Reputation 400
#2 freya34
freya34
Reputation 180
#3 lightGear
lightGear
Reputation 140
View All

Used Cars For Sale

2014 Acura TL For Sale 3429 listings
2013 Acura TL For Sale 486 listings
2012 Acura TL For Sale 884 listings
2011 Acura TL For Sale 891 listings
2010 Acura TL For Sale 416 listings