Snapped bolt in thermostat housing. Please help. Pic.....

[MADDNE33]

Ok when doing a coolant flush I took my thermostat housing off and one of the bolts snapped when undoing it. I e tried easy out and they kept snapping and pretty much the thread is completey ruined. What know? Looks like it's apart of the intake manifold? Is there a way I can get around this? I have put a screw in there but it is leaking and loosing coolant.

Cheers

[MADDNE33]

Just realized you can't upload pics on iphones

[kizza50]

U can with tapa talk app, and I had the same thing on my mates vr Buick, ended up drilling it out re tapping it and new bolt, all sweet

[azkwazere]

Yeah your only real option is to bore it out and then retapp it to a larger bolt size basically.

aZk.

[SWE11L]

Depending how close you are to a wrecker you could save the rooting around of retapping and get a second hand inlet manifold, that way you can can change the gaskets too which prob wouldn't hurt and have peice of mind that all is ok...

[MADDNE33]

Yeh I was thinking about buying a new manifold. How hard are these tap and die sets to use?

[seq4x4]

Pretty easy. Or if you dont have a tap, you may be able to get away with helicoils. Need someone else to either confirm or deny this claim tho.

[strgas]

Pretty easy. Or if you dont have a tap, you may be able to get away with helicoils. Need someone else to either confirm or deny this claim tho.

You will need to drill and tap the hole first before using a helicoil , best to drill the broken bolt out and remove the broken stud completely , if you arnt confident in doing this job then give the thread doctor a call and he will come out and do the job for you for a price

[Dj_fatman]

if you wish to repair by helicoil, you first need the kit as the thread insert usually has an odd type of thread and therefore a purpose built tap.
but if you follow all the instructions that are on the box you will end up with your original thread size in the hole and generally a stronger thread than what you started with.